Boeing 747-121, N739PA: Main document

Report the accident to Boeing 747-121, N739PA at Lockerbie, Dumfriesshire, …… damage to the frames and guide rail segment matched the overall pattern ….

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Boeing 747-121, N739PA: Main document
Aircraft Accident Report No 2/90 (EW/C1094)

  • SYNOPSIS
  • 1. FACTUAL INFORMATION
  • 1.1 History of the flight
  • 1.2 Injuries to persons
  • 1.3 Damage to aircraft
  • 1.4 Other damage
  • 1.5 Personnel information
  • 1.6 Aircraft information
  • 1.7 Meteorological information
  • 1.8 Aids to navigation
  • 1.9 Communications
  • 1.10 Aerodrome information
  • 1.11 Flight recorders
  • 1.12 Wreckage and impact information
  • 1.13 Medical and pathological information
  • 1.14 Fire
  • 1.15 Survival aspects
  • 1.16 Tests and research
  • 1.17 Additional information
  • 2. ANALYSIS
  • 2.1 Introduction
  • 2.2 Explosive destruction of the aircraft
  • 2.3 Flight recorders
  • 2.4 IED position within the aircraft
  • 2.5 Engine evidence
  • 2.6 Detachment of forward fuselage
  • 2.7 Speed of initial disintegration
  • 2.8 The manoeuvre following the explosion
  • 2.9 Secondary disintegration
  • 2.10 Impact speed of components
  • 2.11 Sequence of disintegration
  • 2.12 Explosive mechanisms and the structural disintegration
  • 2.13 Potential limitation of explosive damage
  • 2.14 Summary
  • 3. CONCLUSIONS
  • 3.a Findings
  • 3.b Cause
  • 4. SAFETY RECOMMENDATIONS

Figures:

  • Personnel involved in the investigation
  • Boeing 747 – 121 Leading dimensions
  • Forward fuselage station diagram
  • Network of interlinked cavities
  • Plot of wreckage trails
  • Photographs of model of aircraft
  • Photograph of nose and flight deck
  • Distribution of major wreckage items located in the southern trail
  • Photograph of two-dimensional layout at Longtown
  • Detail of shatter zone of fuselage
  • Photographs of three-dimensional reconstruction
  • Plot of floor damage in area of explosion
  • Explosive damage – left side
  • Explosive damage – right side
  • Skin fracture plo

 

Download Boeing 747-121, N739PA: Main document pdf from www.aaib.gov.uk, 45 pages, 0.19KB.
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