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Former Pilot Len Lawrence's Story

My first recorded fume event was on the 29 November 1991 at Prestwick Airport, Scotland. I was the Handling Pilot of a British Aerospace HS125 Executive Jet. 
​

As the aircraft accelerated along the runway during the take-off run, as the aircraft passed V1 (the speed at which the aircraft is committed to becoming airborne)  the flight deck suddenly filled with hot acrid fumes. Both myself and the other pilot were blinded. We lost all visual reference and could not see any flight deck instruments or controls. Our skin was burning, our eyes were stinging  and it was difficult to breath, at the same time the aircraft was accelerating in excess of 160 mph.

The Captain, also a British Aerospace pilot, with many years experience of the aircraft, with no visual reference, felt his way along the instrument panel and located the dump valve, which allowed air to escape from the aircraft. Within about three seconds visual reference was restored. However, the heat being emitted from the air vents surrounding the rudder peddles was so hot that we had to raise our legs away. Had the aircraft suffered an engine failure it was unlikely that we could have controlled the aircraft safely.

The fume incident had lasted about 15 seconds.

We actioned our emergency drills and alerted Air Traffic Control that the aircraft was in a MAYDAY situation.

Thereafter, we made an emergency landing and an emergency evacuation of passengers from the aircraft.

The incident report completed by the Captain and myself never reach the United Kingdom, Civil Aviation Authority. 

Why? 

The aircraft was sold and all the aircraft log books and records were exported with the aircraft to Russia.

Len Lawrence Medical History / Documents
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Unfortunately, we are not able to provide personalized advice to individuals on diagnosis, treatment and professional and/or legal issues. However, you will find all the information you need on these pages. We thank you for your understanding and hope that the materials on this site will help answer your questions.

​Disclaimer: I am not a medical doctor but a concerned citizen collating research. The provided information should be double checked by everyone according to their personal circumstances before embarking on any treatment in consultation with their personal doctor who knows about the discussed subject and their medical history. Please make sure to present the three downloadable documents HERE  for your doctor's information. This is an effort to share what I have learnt by reading many scientific and medical journals on this subject and my own experience and health journey following exposure to fume events and onboard aerosol pesticide spraying.


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UNFILTERED formerly known as "Aerotoxic Team" the Global Network
2013 - 2026
​Latest update 05. June 2025

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  • HOME
    • Bearnairdine Beaumont
    • SPANISH Pages
    • Report an Incident
    • Contact
  • What are Fume Events?
    • Fume Events? Aerotoxic Syndrome? >
      • Unfiltered - contents of fumes
      • Aerotoxic Syndrome Advice
    • Medical INFO
    • Why ICD-Classification?
    • Science
    • Flying while pregnant
  • Victim Impact
    • Time Line
    • Victim Impact Testimonies
    • Victim Impact Docs, Films
    • Court Cases >
      • The court case of pilot Lacoude
      • ICC The Hague
      • The Hague
    • FAQ's
    • Debate so far
  • Passenger Videos
  • PETITION
    • Petition en Français
    • Petition in English
    • Petition auf Deutsch
    • Petition en Español
    • Petition in het Nederlands
  • MEDICAL HEALTH CONCERNS at Altitude, Fumes & Vaccinations
    • CREW mask info >
      • Flyer's Friend®
  • Disinsection
  • NEWS BLOG & ARTICLES - Aviation's Wounded Canaries
    • UPDATES & NEWS >
      • Press Conference Airplane Safety Legislation Toxic Fumes
      • Press Conference Safe Air on Airplane Act
      • Research Funding Michel Mulder MD.
      • Daniel Dumalin MSc Study on Brain Damage
      • FRANCE The great smoke & mirrors
    • AKADEMIA >
      • Chemicals With Wings
    • Expert Articles on Filtration >
      • Ti-DOX HydroxylizAire “
      • AIRBUS Filtration Problems Dec.8/1988
      • Contaminated air in airliner cabins
      • ASHRAE Introduction to Passenger Aircraft Cabin Air
      • Aeronautical Engineering Prof. Dr.-Ing Dieter Scholz
      • Horizon 2020 Breath of Fresh Air
      • Patent Air Conditiong System air or rail
      • Airbus Cabin Air Explanations >
        • Airborne COVID-19 Decontamination Reinhard Schuetz P. Eng.
      • Airline CEO's Obsession
      • Filtration Efficiency Claims: Misleading?
      • HEPA Technology Tested
      • Forgotten Pollution: Cabin Air Quality
      • The Scent of Flying Free EBook
      • Flying despite Corona?
  • Latest NEWS