Tag: News

The Wit of Tom Lehrer: Songs That Endure

I was first introduced to the pastime of Poisoning Pigeons as a student. No, not literally. The idea of a leisurely Sunday sitting in a park dispatching pests that poo on the public has appeal. In reality, I’d never do that. Tom Lehrer’s comic composition[1] was enough. I have a lot of sympathy with the theme of his delightful song. Pigeons are, after all, merely disease spreading flying rats.

Tom Lehrer has left us a legacy of humour, the like of which we may never hear again. It’s so wonderful that his whole catalogue of songs is in the public domain[2] for everyone to enjoy until the day we all go together, when we go. Even I could have a go at a rendition of one of his songs, don’t worry it’s not my highest priority for the day. Beside matching his musicality, speed and timing isn’t within my meagre capacities.

Despite the massive changes that the world has been through since Tom’s pen went to paper a great number of the lyrics remain pertinent. I can sing “Pollution” loudly and think of the water companies in England. Like lambs to the slaughter, they (we) are drinking the water.

I can’t think of rockets, present or past without thinking of Tom’s song about Wernher Von Braun. Expedience seems to be the order of the day in 2025. Once the rockets go up who cares where they come down[3]. I’m sure the song wasn’t written about the Caribbean, but it could have been.

“The Folk Song Army” song is a nice dig at the pompousness of a certain kind of popular liberal musician. Something of our age. Where performance is more important than real action.

Sending up both the classics and the movie industry, “Oedipus Rex[4]” is pure genius. All such ancient stories should have dedicated title song. A complex complex.

Yes, Tom Lehrer was preaching to the converted. His sharp humour doesn’t normally travel across right-wing boundaries where they take themselves hideously seriously. He digs at the ribs of conservatives, tickles liberals and ridicules the absurdities of authorities.

Goodbye Tom Lehrer. Thanks for all the smiles. Thanks for your brilliant comic imagination. A shining star in the firmament.

[1] https://genius.com/Tom-lehrer-poisoning-pigeons-in-the-park-lyrics

[2] https://tomlehrersongs.com/

[3] https://www.wsj.com/video/spacex-starship-explodes-sending-debris-across-caribbean-sky/B828779B-D067-4290-A06D-77F60A6B501D

[4] https://tomlehrersongs.com/oedipus-rex/

Rapid Change: Social Media’s Role

I don’t think we understand the impact our world of superfast global communication is having on human behaviour. A digital event happens with a group looking on, and gasping, and within hours it’s a talking point across great swaths of the INTERNET and social media. Worldwide in seconds.

We could be at a pivotal moment of human evolution. Every time humans have progressed there’s been something in our environment that has necessitated change. If we go back tens of thousands of years, it was the climate. People moved, searching for better prospects. When the rains disappear, migration happened. This still happens. Millions live in that time warp.

However, for those of us who live in communities where our basic needs are met, bar disasters, it’s different forces that motivate change. I say this after having watched a couple episodes of “Human[1]” a BBC series about the origins of modern humans. Billions of us fixate not on finding enough food or shelter but on scrolling.

I’m talking about a couple who got caught on camera. Obviously, they thought that their evening out at a rock concert was a private matter. It turned out to be anything but private. Suddenly these two people spark controversy and debate without any intention of doing so[2]. We live in a time where global social media can thrust a spotlight on any event, almost anywhere. The proliferation of high-definition cameras and the ease with which pictures spread has all speeded up in the last couple of decades. Any picture or video can go anywhere on Earth at lightning speed.

Past moments of human evolution never had these superfast phenomena to adapt to. Sure, we have had great steps in technology. I read that people are taller now than they were in medieval times. Industrialisation may have had downsides, but we are mostly better fed as a result.

Social media is not benign. It grabs attention, it demands an opinion, it drives rapid judgement and gets passed on to spark more cycles of comment and opinion. This conveyor-belt of comment and opinion takes on a life of its own.

There’s such a mix that it’s not always easy to determine what’s true and what’s people pushing their own certainties and prejudices. Judgements are expected to be immediate. Any appeal to caution and considered thought can be seed sown on fallow ground. Like a Vicar in an empty church.

These behaviours are being applied to the daily News and events like the recent Air India accident. Attention increases when there’s tragedy and mystery. There’s wisdom in saying that people should wait for the formal accident investigation to conclude. Only this does nothing to impede a rain forest of judgements. Real and self appointed experts fight to get their view top billing.

Maybe these are ephemeral and of no great consequence. I don’t believe that because, like it or not, decision makers are influenced by social media’s compelling nature. What this says to me is that adaptation isn’t an option it’s a necessity. Appealing to past custom and practice isn’t going to work. I don’t have an answer as to the nature of this adaptation. Sitting quietly waiting for attention to subside isn’t a good course of action.

POST: It’s kinda funny that a magazine like WIRED highlights how to dump social media. How to Delete All of Your Social Media Accounts: Instagram, X, Facebook, TikTok, and More | WIRED

[1] https://www.bbc.co.uk/iplayer/episodes/m002fc72/human

[2] https://www.nbcnews.com/tech/tech-news/astronomer-responds-coldplay-concert-kiss-cam-moment-rcna219678

Lowering the Voting Age

The line-up of predicable grumpiness is no more than might be expected. For once the UK’s Government has decided to bite the bullet and make a long overdue change. It’s time to bring the voting age down to 16-years old. This is a policy that has long been advocated by Liberal Democrats. Wisely so. Like it or not, we have a stubborn geriocracy in Britan. Political influence is top heavy. An agenda dominated by issues toping the polls with older voters.

Yes, we did see changes, a year ago with the last General Election. More younger candidates winning. However, the average age of a Member of Parliament[1] floats around 50-years. This average age hasn’t changed much over decades.

Studies on what motivates candidates to stand for election often point to community engagement and activism being part of their lives. It’s only when, in mid-life, opportunities present themselves and support can be marshalled that they stand for election.

And the retirement community of the House of Lords is solely built on the notion that age brings wisdom. Sadly, so often this does not ring true. Ten minutes watching the Parliamentary channel is a good way to see a range of speakers from erudite to senile. From expert to confused. From informed to delusionary. On occasion a few sleeping on the comfortable red leather benches.

When the elderly hold so much political power it’s difficult enough to get 18-year-olds to take an interest in voting. This is not an argument for the status-quo. Far from it.

Those in the age group 16 to 18 years are interested in society and the direction it’s taking. Youth activism hasn’t entirely perished in the world of tick-boxing education. Loading students up with enormous loans, with learning establishments seeing them as revenue generators, and deaf ears to their concerns has done a lot to supress youth engagement in elections.

There’s a lot to be said for “no taxation without representation”. Young people do work. They do pay taxes. They should have a stake in how those taxes are spent.

What’s not to be presumed is that a new youth vote will automatically lean to the left of politics. It’s easy to make that sloppy assumption. It may arise because the prominent youth activist who get media exposure are those campaigning on environmental and social issues. That does not say much about the majority who may choose to go to a polling station.

I think the larger number of young voters, despite the media stereotypes, will likely vote the way of their parents and friends. Having been nurtured in a particular way this is not so surprising. The lazy stereotypes of riotous youths biting the hand that feeds them is only true of a few, it’s not the majority. It’s belonging to dusty Woodstock documentaries.

It’s for the political parties to up their game and campaign with young people in mind. Even with the best of efforts election turn-out is still likely to be low. At least the message is that the next generation matter. If these modest changes are blocked because older people fear the next generation that is a very sad reflection of our society. Surely, it’s better to have younger people invested in their communities. 

[1] https://www.parliament.uk/about/faqs/house-of-commons-faqs/members-faq-page2/

The Greasy Pole

I think we should be indebted to the writers of “Yes Minister.” And the brilliance of Paul Eddington, Nigel Hawthorne, and Derek Fowlds[1]. No mobile phones, lap-tops or tablets, wood panelled offices, a Minister with all the backbone of a jellyfish and the cunning and mountainous pomposity of Oxbridge’s best.

It’s the ultimate lesson for aspiring British politicians. Fresh faced, with ambition and desire to make a difference they are confronted with the custom and practice of centuries. A bureaucratic minefield that tops anything Brussels can produce.

At first, it’s easy to see Jim Hacker as naive to the point of merely being indulged by the civil service. He learns fast, as a good parliamentarian should always do. Fun being seeing him turn the tables on the Whitehall establishment. Often at the expense of hysterically awkward moments and sporadic cynical manoeuvrings.

Last night, I watched “The greasy pole”[2]. Without a doubt this episode remains 100% relevant. It first went out in 1981. The story’s themes are universal.

A proposed industrial development offers secure jobs and potential prosperity. It comes with a hitch. Activism and noisy protests aimed against the project. Industry and the civil service want the factory to get built. The Right Honourable James Hacker sits on the fence. Blows hot and cold but realises that his political career pivots around sinking the project. The Minister wins out in the end much to the discomfort of the department officials.

It would be easy to write the entire plot in terms of 2025’s political difficulties. This morning’s News ran a story that wasn’t so far off the plot of “The greasy pole.”

A new Labour government minister tells of publishing a report that favours a point of view he wishes to get across. He continually mentions the name of the author of the report. Mimicking Jim Hacker as he makes sure everyone knows the report’s author, just in case he’s made a mistake.

Although, with the complete ridiculousness of the past British Conservative governments it may have been said that satire is dead. No, it certainly isn’t. Here it was playing out on the BBC on my kitchen radio at breakfast time.

This is the stubborn reality. In Britain we have a new absurdly named political party called “Reform.” They are flying high in the opinion polls because some people think the word has a political meaning. However, if these would be politicians were to gain a position of power, would they conduct long-needed reforms? Well, given the competence of the people involved and given the historic clashes between elected officials and civil servants the answer is most certainly – no.

It seems to me that new Labour government ministers are slowly getting the hang of the job. One year in they are still a bit wet behind the ears. Gradually, they are climbing the greasy pole. At any moment, because of the nature of the job, down they can come, and they know it.

[1] https://www.bbc.co.uk/iplayer/episodes/b006xtc3/yes-minister

[2] https://www.imdb.com/title/tt0751819/

Aircraft Safety and Fuel Starvation

Unsafe. In common language it’s the opposite to being safe. So, take a definition of “safe” and reverse it. Let’s say to be safe is to be free from harm (not a good definition). That would lead to “unsafe” being subject to harm or potentially being subject to harm. The probabilistic element always creeps in since it’s the future that is of concern. Absolute safety is as mercurial or unreal as absolute certainty.

Let’s apply this to an aircraft. The ultimate harm is that of a catastrophic event from which there is no escape. Surprisingly, taking a high-level view, there are few of these situations that can occur.

Flying, and continuing to fly, involves four forces. Lift, Weight, Thrust and Drag. It’s that simple. An aircraft moves through the air with these in balance. Flying straight and level, lift opposes weight and thrust opposes drag.

Yes, there are other safety considerations. If there are people on-board. For example, it’s important to maintain a habitable environment. At higher altitudes that requirement can be demanding. Structural integrity is important too. Otherwise flying is a short-lived experience.

In the recent Air India fatal accident, the four forces of flight were not maintained so as to make a continued safe flight possible. The wings provided lift but the force that was deficient was thrust.

Two large powerful engines, either of which could have provided enough thrust, were unable to do so. The trouble being fuel starvation. Fuel starvation occurs when the fuel supply to the engine(s) is interrupted. This can happen even when there is useable fuel on board an aircraft[1].

Sadly, in the records there are numerous aircraft incidents and accidents where this has happened. Quite a few fuel starvation incidents and accidents occur because of fuel mismanagement. This can result from a pilot selecting an incorrect, or empty, fuel tank during a flight.

Now and then, it is the aircraft systems that are at fault. The pilot(s) can be misled by a faulty fuel indication system[2]. In one notable case, a major fuel leak drained the aircraft’s fuel supply[3].

When there is useable fuel on-board an aircraft, the imperative is to restart and recover. It is not uncommon or unreasonable for there to be a delay in restarting engine(s), especially when a fuel starvation event is entirely unexpected. Diagnosis takes time given the numerous potential causes of a starvation event.

In cruise flight there is time available to perform a diagnosis and take appropriate corrective action. Both take-off and landing have their hazards. Both are busy times in the cockpit. When looking at the worldwide safety numbers, less fatal accidents occur on take-off than landing. The numbers Boeing provide put take-off at 6% and landing at 24% of fatal accidents. Each one only occupies about 1% of the total flight time.

Although these are the numbers, my view is that, even though take-offs are optional and landings are mandatory, the requirements for adequate thrust are most critical during take-off. This is arguable and it reminds me that safety assessment is never simple.

[1] https://www.faa.gov/lessons_learned/transport_airplane/accidents/G-YMMM

[2] https://asn.flightsafety.org/asndb/322358

[3] https://asn.flightsafety.org/asndb/323244

Understanding Boeing 787 Avionics

In what I’ve written so far, I’ve taken the humancentric view much as most commentators. The focus of interest being on what the two Air India crew members were doing during the critical moments of this tragic flight. Let’s shift perspective. It’s time to take an aircraft level view.

On the Boeing 787-8 “Dreamliner”, the flight deck has two crew seats and two observer seats. One observer seat is directly behind and between the two crew seats. Since these observer seats are not mentioned in the preliminary report, it’s responsible to assume that they were unoccupied.

In my days working on civil aircraft certification, it was often as a part of a multidisciplinary team. I suppose one of the privileges of working on aircraft avionic systems is that they touch every part of a modern civil aircraft. That meant working with highly experienced specialist in every technical field, including flight test pilots and engineers.

When it came to reviewing aircraft system safety assessments, we’d often put it like this, you look at the aircraft from the inside out and well look at the aircraft from the outside in. Meaning that the flight test team looked at how the aircraft flew and performed. Systems engineering specialists focused on how the aircraft functioned. What was the detailed design, the means and mechanisms. It was by putting these differing perspectives together that a comprehensive review of an aircraft could be established.

Here’s where I need to be careful. Although, I worked on the technical standards1 for complex aircraft systems, I did not work on the Boeing 787 at initial certification.

If I go back 25-years, a major change that was happening with respect to aircraft systems. It was the move to apply Integrated Modular Avionics (IMA). This was a move away from federated systems, where just about every aircraft function had its own box (autopilot, autothrottles, instruments, etc.) There was a fundamental architectural difference between federated and IMA systems.

The Boeing 787 has what is called a Common Core System (CCS). As an analogy let’s think of a time before the smart phone became universal. I had a Nokia mobile phone, a Canon camera, a HP calculator, a Dell lap-top, lots of connectors and pen and paper. Now, the only one that has survived the passage of time is the pen and paper.

So, it is with modern civil aircraft. An Integrated Modular Avionics (IMA) hosts the applications that are necessary for safe flight and landing. The IMA hosts functions that provide, Environmental Control, Electrical, Mechanical, Hydraulic, Auxiliary Power Unit (APU), Cabin Services, Flight Controls, Health Management, Fuel, Payloads, and Propulsion systems.

Information is digitised (sensors, switches and alike), processed and then acted upon. General Processing Modules (GPM) inside the aircraft CCS perform the functions needed. There’s an array of these GPMs and redundancy to provide a high integrity aircraft system.

An aircraft’s Fuel Shutoff Valve Actuator depend on the above working as intended in all foreseeable circumstances. No doubt the accident investigators are undertaking an analysis of the Boeing 787 avionics architecture to gain assurance that it worked as intended.

  1. Standards: EUROCAE started a working group (Number 60) in September 2001, which was tasked to define guidance. Later, in November 2002, there was a merge with an RTCA steering committee (Number 200). ↩︎

Fuel Control Switches

I’ll not go any further than the investigation report that’s in the public domain. The Air India AI171 Boeing 787-800 Preliminary Report is published for all to read. The aircraft’s Enhanced Airborne Flight Recorder (EAFR) has been replayed. Sadly, this report raised questions as much as it closes down erroneous theories.

It warrants saying again, and again. My thoughts are with the friends and families of those affected. They deserve to know exactly what happened and as far as is possible, why. Not only that but the global travelling public need to be confident that any necessary corrective action is being taken to prevent a recurrence of such a rare fatal accident.

What requires a one or two words is one of the commonest ways we interact with electrical and electronic systems. The humble switch. In fact, they are far from humble and come in lots of shapes and sizes. The general idea is that a mechanical device, that can be manipulated with a purpose in mind, is used to control the flow of electrical current. There are non-mechanical switches, but I’ll not go there for the moment.

I remember conversations with my aircraft electrical engineering colleagues. It goes like this – you deal with the small currents (avionic systems), and we will deal with the big ones (power systems). Also, a mantra was that all electrical systems are, in part, mechanical systems. Switches, cables, generators, control valves, relays, bonding, you name it, they are in part, mechanical systems. In the past traditional electrical engineers got a but jittery when faced with “solid state” controls (semiconductors).

Switches. I’ve seen the words “cognitive engagement” used. In simpler terms, by design, pilots interact with switches with a purpose in mind. Equally, as in the world of human factors, unprotected switches can be operated in error, unintentionally or by physical force.

So, what are the chances of two protected Fuel Control Switches moving, within seconds of each other, at the most critical phase of an aircraft’s flight?

[There is a discussion to be had in respect of timing. Remember the record from the flight recorders is a sampling of events. The sampling rate maybe as low as one per second. Note: EASA AMC2 CAT.IDE.A.190.]

These cockpit switches are designed and certificated to perform as intended under specified operating and environmental conditions. That’s a wide range of vibration and temperature (shake and bake).

Switch operation is indicated by their physical position[1]. In addition, operation of these switches will be evident by cockpit indications. The concept being that a flight crew can confirm that the Fuel Control Switches have moved by their effect on the engines. If a crew need to take corrective action it is in relation to the information presented to them by the engine instrument system.

The report makes it clear that both mechanical switches transitioned from ‘RUN’ to ‘CUT-OFF’ almost immediately as the aircraft became airborne. That is a worst-case scenario. The time available to recognise and understand the situation, for training to kick-in, and then to take appropriate corrective action was insufficient.

This leads me to think that there may be a case for disabling the Fuel Control Switch function up until at least an altitude where aircraft recovery is possible. Now, these switches need to be available up until the V1 speed is achieved (Example: aborting a take-off with an engine fire). After that an aircraft is committed to becoming airborne.

I suspect the reason there is no inhibit function is the possibility of adding another potential failure condition. Inadvertent and unrecoverable disabling of ‘CUT-OFF’ are scenarios that would need to be considered. No doubt a reasonableness argument was used. No crew would shut-down both engines down immediately an aircraft became airborne, would they?

POST: I hope I haven’t given the impression that this is a case of simple switches and wires. The Boeing 787 is a digital aircraft.  Mechanical fuel technology plays its part but control functions are digital.

[1] Designs that offer switch illumination are not used in this case.

Insights from AAIB Report on Boeing 787 Accident

Now, we know more about the most tragic aviation accident of recent years. The report by India’s Aircraft Accident Investigation Bureau (AAIB) about the June 12 fatal accident of a Boeing 787 raises new questions.

The careful wording of the preliminary report[1] is eminently sensible. The facts are what they are, but it remains difficult to construct a scenario around these facts. I suspect that all the parties involved in this fatal accident investigation had a hand in ensuring that the words used where as clear as can be at this early stage. As I said, the facts are what they are.

It’s good that the report shuts down some of the fervent and erroneous speculation that was filling the international media. For this accident, fuel supply being the substantive issue, decisions around flying controls and other aircraft performance issues can be put to one side.

The crew encountered, or were responsible for a situation that once established led to one inevitable sad outcome. The time available to react, at such low altitude, was less than that which was needed to continue a safe flight.

A focus at this point is on the Boeing 787 aircraft’s fuel control switches. These switches are installed in the flight deck and used by a pilot to cutoff fuel to the engines. When correctly installed, these fuel control switches have a locking feature to prevent inadvertent operation.

Clearly unintended switch movement between the fuel supply and fuel cutoff positions can be hazardous. Inadvertent operation of one or both switches could result in an unintended consequence, e.g. engine(s) shutdown. What we know is that sufficient fuel was supplied to the aircraft engines to conduct a take-off. Then for some unknown reason that fuel supply did not continue as it should.

So far, the respectable technical speculation I’ve read (pilot and aircraft engineer led), raises a limited number of possibilities.

One being that the crew acted in an inappropriate or inadvertent manner. Another being that the aircraft’s fuel control switches failed or were caused to fail. Another being that aircraft’s fuel control system (including wiring) failed or were caused to fail. The movement of the flight deck switches may or may not have been involved. What we know is that the record on the accident flight recorder shows a condition occurred that should not occur.

There is no doubt that this would have been a highly stressful situation in the cockpit whatever the root cause. Normally, immediately after the aircraft is leaving the runway the pilot-in-command would have no good reason to look at the aircraft’s fuel control switches. They would be looking forward at the aircraft instruments.

We can take it that every aviation authority/agency/administration with a Boeing aircraft on its aircraft register will be closely watching the progress of this accident investigation. Since, to date, no Airworthiness Directive (AD) has been issued, related this fatal accident, it is reasonable to assume that aircraft systems and equipment failure or maintenance error has not been found. That said, it is worth noting FAA Special Airworthiness Information Bulletin (SAIB) No. NM-18-33 dated December 17, 2018.

We cannot rule out the possibility that this fatal accident was intentional. However, in the whole history of civil aviation this is one of the most extreme explanations. Looking at evidence, a situation when a competent and sane pilot is found to choose to act in an irrational manner is hard to diagnose.

POST: Just over 3-years ago, I wrote “The case for video”. That case to update the rules is now stronger than ever. The case for video.

[1] https://aaib.gov.in/

Tariff Turbulence

Tariffs are back in the daily News again. In fact, they never went away it’s just that more attention getting events have been happening. Tariffs were something specialist trade negotiators talked about before this year started. Now, the word is commonplace.

The simple assumption is always made that everyone knows what the word means. Apparently, the origins of the word are Arabic[1]. Linked to information. Now, it’s a fee that someone must pay. The important bit being “must”. In this context it’s about the import and export of goods. The relations between countries.

A presumption made by politicians, who like these bureaucratic instruments, is that they can help protect a nation’s domestic industry from competition from other countries. Thus, tipping the balance away from investments made abroad to those made at home. This chimes with nationalistic instincts.

If only it were as simple. Globalisation is a reality. Kicking against it has its attractive points, if it weren’t for the overall benefits that it has delivered in recent decades. Much of the technology we take for granted is available at low prices because of where and how it’s manufactured.

One advice given out by banks is to avoid knee-jerk reactions. In other words, the ups and downs and on and offs of changing tariff regimes may seem to demand an immediate response. However, it could be wiser to ride out the turbulence of these early months of 2025. To sit back and let the dust settle.

Politically driven efforts to disrupt global trade are likely to impact both importer and exporter. It doesn’t take more than a few minutes walking around a large warehouse store to see goods originating from all over the world. That is quality goods that are offered for sale at astonishingly low prices. It astounds me that I can easily buy a perfectly good basic kitchen microwave for £50.

I hate to say it, but I don’t think there’s anyway whatsoever that a domestic manufacturer could compete with that electrical product’s price and quality even if there was a 100% tariff placed on its import. The story vacuum cleaners is one of designs emanating from Britain but being made in Asia. Globalisation is a reality.

I will make at least one concession. That’s the environmental one. Shipping vast qualities of raw materials and goods around the globe has a real cost. An environmental cost. So, it would be wise, at least, to investigate if domestic production is a viable prospect before automatically assuming an import is better. This is a matter for both industry and public policy.

Not only this point but for some critical products, say steel and semiconductors, there should be a domestic capability even if it’s only aimed at meeting a fraction of the potential demand. Strategic needs are not trivial.

Are tariffs a good way to shift the global balance sheet? To me the answer depends on adopting either a short-term or long-term perspective. Certainly, in the later tariffs are a foolish measure. My recollections come from the history of subsidised industries in the 1970s and the poor products that resulted. It a sorry saga of designed decline. One quick look at the story of the British Leyland Motor Company (BLMC) is a good lesson.

I know for a liberal I sound Thatcherite but competition brings better outcomes than protectionism. That generally depends on a level playing field. Yes, tariffs are a form domestic protectionism and that’s much like a permanent subsidy. Trouble is that permanence is never permanent.

Trump maybe a part-time socialist. If not by word then by action. For the time being the tariff humbug will continue to command attention. In the longer term – I think not. Relearning what has been learnt in the past.

[1] https://blog.collinsdictionary.com/language-lovers/the-fascinating-journey-of-the-word-tariff/

Managing Risk After Aircraft Accidents

Let me clarify. I can no more predict the future than is illustrated in the humour of this news report. “Psychic’s Gloucester show cancelled due to ‘unforeseen circumstances[1]‘”

Predicting the outcome of an aircraft accident investigation is just as fraught with unforeseen circumstances. For a start, the evidence base is shallow in the first weeks of an investigation. As the clock ticks so increasingly, new information either confuses or clarifies the situation.

Despite the uncertainty, aviation professionals do need to try to anticipate the findings of a formal investigation before they are published or communicated in confidence. It’s not acceptable to sit back and wait to be told what has been found.

In aviation, post-accident there is an elevation of operational risk. The trouble is that assessing that elevation is hindered by the paucity of reliable information. Equally, a proliferation of speculation can escalate risk assessments beyond what is needed. The reverse is true too.

Let’s look at the difference between commentary and speculation. One is based on evidence and the other may not be. One takes the best professional assessment and the other may be more to do with beliefs, prejudices or the latest fashionable thinking.

In reality, it’s not quite as binary. Since speculation in the financial sense may be based on a lot of calculation and risk assessment. Generally, though there is an element of a leap of faith. Opinions based upon past experiences commonly shape thinking.

Commentary on the other hand, like sports commentary is describing what’s happening based upon what’s known. Sometimes that includes one or two – what ifs. In football, that match deciding penalty that was only missed but for a small error.

Commentary includes analysis and study of past accidents and incidents. Trying to pick-up on any apparent trends or patterns is of paramount importance.

Those responsible for aircraft operations, whether they be airlines or safety regulators, need to have an immediate response. That maybe done in private. Their decision-makers need to have a theory or conjecture based on as much analysis and evidence as is available. Like it or not, the proliferation of commentary and speculation does have an impact.

In a past life, one of the actions that my team and I took was to compile a “red book” as quickly as possible post-accident. That document would contain as much reliable information as was available. Facts like aircraft registration details, a type description, people, places and organisation details that were verifiable. This was not a full explanation. It was an analysis, compilation and commentary on what had happened. The idea being that decision-makers had the best possible chance of acting in a consistent manner to reduce risk in the here and now.

[1] https://www.gloucestershirelive.co.uk/whats-on/whats-on-news/psychics-gloucester-show-cancelled-due-7250094