Cabin Air Safety/Aerotoxic Syndrome

Grahame Morris Excerpts

Thursday 17th March 2016 Westminster Hall

[Grahame M. Morris (Easington) (Lab)]

It is a pleasure to serve under your chairmanship again, Mrs Gillan.

I thank the Backbench Business Committee for the debate and all Members who supported the application for one. I pay tribute to my hon. Friend the Member for Stalybridge and Hyde (Jonathan Reynolds) for the professional and comprehensive way he put forward the case, and to the contributions of both Government and Opposition Members, in particular that of the hon. Member for Crawley (Henry Smith), who I suspect has not got the credit he deserves for raising the issue. The proposals and suggestions have been extraordinarily helpful, and I hope that the Minister will respond positively.

I must declare my interest as chair of the Unite group in Parliament. I am a proud member of Unite and I feel, as my colleagues do, that this is an important part of the work we do for our members and their families. I also pay tribute to Matt Bass’s parents, Charlie and Fiona, who might be listening to the debate today. I had the great privilege of meeting them and some Unite members who are air crew. At a meeting in Parliament, they relayed to us their personal experiences and concerns.

I thank my trade union, Unite, for its excellent and detailed briefing on such an important issue, and a number of Members have emphasised some specific aspects. It is important to recognise the valuable work of Unite in investigating concerns and protecting passengers and cabin crew from toxic fume events. I am concerned that airlines, regulators and, with due respect to the Minister, Governments do not seem to be terribly active in considering contaminated cabin air.

It would be remiss of me not to remind people—the general public who are listening to the debate or reading it in Hansard—that Unite has established a fume event register and a helpline, which are available through the website. Given the lack of any official reporting, I hope that when air crew and members of the public who are frequent flyers feel that there has been such an incident, they will use the Unite register to report it. We need the evidence and an objective assessment. We need public and cabin crew affected by fume events to come forward and identify them.

If we are not successful in convincing the Government to take action and to investigate the matter fully, we will need evidence because the only other option for people is to seek legal redress. As my hon. Friend the Member for Heywood and Middleton (Liz McInnes) mentioned, Unite is taking up the case of 61 of our members in relation to this issue. Earlier in the debate, the hon. Member for Horsham (Jeremy Quin) suggested that there was not a causal link between symptoms and exposure, but I am old enough to remember the arguments made against any causal link between smoking and lung cancer, or exposure to asbestos and the development of mesothelioma and asbestosis. I fully understand the reluctance of the industry to have an investigation, because of the potential costs involved, but it is beholden on us and the Minister in particular to look into such a link with all seriousness.

[Jeremy Quin]

I think I might have misheard the hon. Gentleman, but, if not, I would not want the record to suggest that I think there is no causal link—I am concerned that there might be. The hon. Member for Stalybridge and Hyde (Jonathan Reynolds) referred to asbestosis and we have also heard about organophosphates. I think there may be a causal link, and I am keen that the precautionary principle applies until we get really hard evidence that there is not. Like the hon. Gentleman, I am genuinely concerned.

[Grahame M. Morris]

I am grateful for that intervention; I did not mean to misrepresent the hon. Gentleman’s position. It is important that we look at evidence. Considerable pressure is building to have a proper investigation and to make an objective assessment as to whether there is a causative link between the symptoms, which are wide and various—I do not propose to go into them again because other Members have already done that—and exposure to toxic air fumes that have come from engines through bleed air systems.

Other Members have referred to the new generation Boeing 787 Dreamliner, which uses bleed-free systems. Those systems are not an industry standard, nor does Boeing’s decision seem to mark the beginning of a transition to a safer system. I echo the comments of my hon. Friend the Member for Stalybridge and Hyde, because, apart from anything else, Unite has a substantial number of members involved in the aviation industry—not just flight and aircraft maintenance crew but those working in the manufacture of aircraft components and engines. I do not seek to damage confidence in the industry, but it is important that we ensure that this safety-critical industry enjoys complete confidence and we have those necessary assurances and investigations.

[Chris Stephens]

rose—

[Grahame M. Morris]

I will give way to my friend, the hon. Member for Glasgow South West (Chris Stephens).

[Chris Stephens]

Is there not also confusion about which body is responsible for occupational health and safety? It seems to be split between the Civil Aviation Authority and the Health and Safety Executive, and that is confusing in terms of the Control of Substances Hazardous to Health Regulations 2002—the hon. Gentleman will be familiar with them—which the CAA has denied responsibility for.

[Grahame M. Morris]

That is a good point. I hope that the Minister will reflect on it and perhaps refer to it in his response.

I am afraid that we do not have a lot of information on the frequency of these events in the United Kingdom. The much-criticised UK Committee on Toxicity of Chemicals in Food, Consumer Products and the Environment estimated that smoke and fume events are reported by pilots in one in every 100 flights—I think that was previously mentioned—but those are conservative estimates. If there is under-reporting, as many seem to believe anecdotally, that might be another reason why many fume events are not being investigated. As my hon. Friend the Member for Brent Central (Dawn Butler) mentioned, it is important to monitor in real time rather than bring portable equipment on to aircraft when they have landed.

I understand that UK fleet figures are not available—if the Minister does have such figures, I am happy to take an intervention from him to put them on the record—but what was initially thought to be quite a rare event anecdotally seems to be happening far too often. Figures available from the United States are quite alarming, although they have many more aircraft and flights. Clearly exposure to contaminated bleed air can have a serious impact on health, particularly for cabin crew, who are at greater risk of exposure and of cumulative effects.

We have already heard about the coroner’s letter following the sad death of pilot Richard Westgate and the regulation 28 report, so I do not intend to go into that. However, it seems to be an omission that there is nothing on the public record. We have heard quotes from the Civil Aviation Authority response to that letter, but we have not seen the full response. The CAA said that

“there is no positive evidence of a link between exposure to contaminants in cabin air and possible acute and long-term health effects”.

Although it did conclude that

“such a link cannot be excluded.”

I am not sure what good that is. It seems to me that this issue is crying out for some further research and evidence so that we can either establish a link or rule it out.

I am prepared to concede that there is a knowledge gap, but the industry and regulators are relying on a system of denial rather than fitting the detection systems required to collect evidence on the true number and concentration of fume events. I do not believe that the industry—or the Government for that matter—would deny the existence of fume events. Again, the Minister can correct me if I am wrong, but I believe they also accept that fume events are detrimental to health. While they may disagree on the extent of such impacts, I ask the Minister to support calls for an independent inquiry into the risks and hazards associated with contaminated air.

We need monitoring and detection systems for cabin air to be introduced so that we can ascertain the true extent of the problem. We also need a better system to diagnose, treat and compensate workers whose health and wellbeing has been compromised and damaged by fume events. Finally, all future aircraft should be designed to be bleed-free. If there is a shred of doubt about there being cumulative, long-term adverse effects on health, surely that is a sensible way to proceed when drawing up design specifications. In the meantime, it is possible to mitigate any effects, perhaps by looking at maintenance schedules, because aircraft that are not maintained to such a high standard are more likely to be subject to fume events as seals go—that is the nature of a mechanical design. Things could therefore be done; indeed, engine oils and hydraulic fluids could be reformulated to minimise potential adverse effects on health.

Ultimately, we need airlines to step up to the plate and accept their responsibilities and duty of care to employees and passengers. If not them, regulators need to demand changes, and detection systems should be fitted to seek further evidence on fume events. If not the airlines or the regulators, the Minister and the Government must take charge. Until such time, I do not believe any of us—the travelling public or indeed air crew—can say with confidence that air travel is completely risk-free and that fume events are not a risk to public health.

[Mrs Cheryl Gillan (in the Chair)]

I do not think that any other Members are seeking to catch my eye, so we will move to the wind-ups.

--- Later in debate ---

[Grahame M. Morris]

The Minister is making a good point. In fact, the issue was raised by my hon. Friend the Member for Newport East (Jessica Morden). Does he accept that the problem is the regular, continuous exposure to various levels, whereas sheep dipping, even though it was done without proper protection initially—he can correct me if I am wrong—would presumably be for a limited period? It would not be every day in someone’s working life on the farm.

[Mr Goodwill]

I will go on to describe the levels that those in aircraft cabins are likely to be exposed to under normal operations when a fume event has not taken place. However, as I was saying, neither of my two friends who are suffering from career-finishing symptoms—they are not able to work—had been involved in either the aviation industry or in agriculture. I suspect that if they had been involved in agriculture, I would have been asking questions about whether their exposure to sheep dip or to other agrochemicals may have been to blame. Similarly, if they had been in the aviation industry, I would perhaps be asking the same questions.

The Government take the health and air safety of passengers and crew extremely seriously. The United Kingdom is recognised throughout the global aviation community for its high standard and excellent record of safety in commercial aviation. I must make it clear that the Government must always act on evidence and we have over the years worked hard to collect evidence, as did the previous Government when the problem first came to public awareness. There has been much public debate about the issue as so many people are aware of the problem.

There are currently two inquests into deaths where the relatives of the deceased are trying to establish whether contamination by cabin air could have been the cause of death. Both inquests are still open, and in both cases the CAA rather than my Department has been named as an interested party. Both of the deceased were employed by the same airline, and so far the evidence that has been gathered does not support the view that the deaths were connected to contamination of cabin air.

In the case of Richard Westgate, the Dorset coroner’s January pre-inquest review has been adjourned to 30 March 2016 to allow time for medical experts’ reports to be submitted, but he did release a prevention of future deaths report in 2014, which some have taken as a signal that the death might be attributed to contamination of cabin air. However, there was no evidence to suggest that this was the case, and we await the full inquest verdict with a great deal of interest.

In the case of Matt Bass, who has been mentioned during this debate and whose case is before the Berkshire coroner, the January pre-inquest review has been adjourned until 15 June 2016 to allow time to locate medical samples and to instruct the experts. I offer my deepest sympathies to the families and friends of the deceased, but, as the two inquests have not been concluded, it would not be appropriate for the Government to comment in further detail.

--- Later in debate ---

[Mr Goodwill]

Certainly the CAA is involved in this. I meet regularly with the unions involved, particularly BALPA, so it is not something that we are trying to shuffle away, but we need to wait for the result of the inquest before we report on these particular cases. I will go on to present various pieces of evidence and show where we are on this important matter. I will talk about what work has already been done and what work we believe needs to be done.

The safety of cabin air is an issue that has been a matter of public debate over several years—in fact, over a decade now. This continues to be the case, and I, together with my noble Friend Lord Ahmad of Wimbledon, have received a considerable amount of correspondence and responded to several parliamentary questions on cabin air quality. As background, some crew and passengers have expressed concerns that they have suffered long-term health impairment, which they contend is due to exposure to organophosphates present in small amounts as additives in aviation engine oils and hydraulic fluids.

As ever, we have to be careful to have regard to whether there is evidence to support the link between the illnesses and cabin air. That is why the concerns have been investigated at length over a number of years. In 2006 the previous Government arranged for the Committee on Toxicity of Chemicals in Food, Consumer Products and the Environment—an independent advisory committee of toxicology experts—to review evidence from the British Airline Pilots Association. At the time, the Committee on Toxicity considered that it was not possible to conclude whether cabin air exposures in general, or following incidents such as fume events, cause ill health in commercial aircraft crews. It recommended further work to ascertain whether substances in the cabin environment could potentially be harmful to health.

A second inquiry was held by the House of Lords Science and Technology Committee, which looked into this issue as part of a wider inquiry in 2007, and published its findings in a report called “Air Travel and Health”. In that report, the findings of the Committee on Toxicity were supported. Following the recommendation in 2007 by the Committee on Toxicity, the Government commissioned a series of scientific studies as part of a research programme on cabin air. The principal research study, which was carried out by Cranfield University, was published in 2011. It found that, with respect to the conditions of flight experienced during the cabin air sampling, there was no evidence of pollutants occurring at levels exceeding health and safety standards and guidelines. Levels observed in the flights that formed part of the study—I stress that they did not include an instance of an oil seal failing—were comparable to those typically experienced in domestic settings. No higher levels of exposure were found than, for example, we would experience in this Chamber.

In addition to the principal study, three further research studies were commissioned and published by the Government. Those four published studies were formally submitted to the Committee on Toxicity for consideration in 2012. The Committee considered the research reports, as well as other research published in the scientific literature since 2007, and subsequently published a position paper on cabin air in December 2013.

I have recently written to several Members of Parliament regarding the findings of the Committee’s position paper. In that letter, which was also placed in the Libraries of both Houses, I summarised the advice the Committee gave and its conclusions. In short, the paper recognises that contamination of cabin air by components or combustion products of engine oils does occur, and that episodes of acute illness have occurred shortly after such episodes. However, it found that levels of chemicals in bleed air would need to occur in far higher concentrations than those found during the studies to cause serious toxicity, and that the symptoms that have been reported following fume events have been wide-ranging, and less specific than those that typically occur from chemical toxicity.

[Grahame M. Morris]

I am grateful to the Minister, who is being characteristically generous in giving way. Is there not a basic flaw in that suggestion, if we do not count incidents? Could it be that in some older aircraft that may not be maintained to such a rigorous standard, air fume events are more frequent? Is that not a possibility, if we do not do a proper investigation, in situ, in real time?

[Mr Goodwill]

That is a very reasonable point to make. The findings have been made by professional toxicologists, whose job it is to analyse the effects of toxic compounds in a variety of locations, including the workplace. I shall come on to talk about the number of so-called fume events, and I have some evidence from the CAA to put it in context.