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Transcript

Pilots' Experience

First Officer: Joël Cherubin

  • 37 years old
  • 3615 total flight hours
  • 61 flight hours in A320

Captain: Christian Hecquet

  • 42 years old
  • 8806 total flight hours
  • 162 flight hours in A320

Approach into SXB

Aircraft involved

in accident

  • Pilots planned for ILS for RWY 23 followed by a visual for RWY 5
  • Delay on RWY 23 due to departing traffic
  • ATC offers to vector them back to ANDLO intersection at 5000 feet and shoot VOR/DME approach for RWY 5
  • ATC gives early inbound turn for RWY 5
  • ATC attempts to notify pilots of his error
  • Once cleared for the approach, pilots proceed on course and begin descent at ANDLO intersection

Approach into SXB

  • Once cleared for the approach, pilots proceed on course and begin descent at ANDLO intersection
  • Pilot then enters a descent rate of 3300 feet per minute
  • Descent rate should have been 3.3 degrees in the FPA mode but was in V/S mode in feet/minute

Recovery

  • 3 hours after initial crash one surviving passenger goes searching for help
  • The passenger encounters a T.V. crew looking for the crash
  • The T.V. crew was hesitant that he was an actual passenger of the flight
  • He eventually persuades them and leads them to the crash site

Conclusion

Ramifications

Crash Overview

Flight Data Recovery

  • After throrough 676 day investigation, the BEA concluded that the causes of the crash were:

Flight Deck Ergonomics

Crew's Lack of Situational Awareness

ATC Errors

Insufficient Pilot Training

Lack of GPWS

Low Experience Pilot Pairing

  • Airbus changes it's autopilot's interface to show 4 digit vertical speed setting instead of 2
  • Also increased durability of the F.D.R. and E.L.T. worldwide
  • French BEA issues 34 safety recommendations
  • Air Inter changed company policies regarding GPWS and pilot training
  • F.D.R. was destroyed from the fire during crash
  • Quick Access Recorder was able to be salvaged, but 20 cm of the recording were burned
  • Garnett Technique had to be used to read damaged Q.A.R.

Questions?

Date: Monday January 20th 1992

Time: 19:20

Departure airport: Lyon Satolas Airport (LYS)

Destination airport: Strasbourg-Entzheim

Airport (SXB)

Type: Airbus A320-111

Operator: Air Inter

Crew: Occupants: 6 / Fatalities: 5

Passengers: Occupants: 90 / Fatalities: 82

Location: 12.2 miles SW of SXB

Phase: Approach

Cause: Many Factors (explained later)

ATIS (Weather): Winds 040 at 30 knots and layers of scattered to broken clouds at 1,100 and 2,600 feet

Crash

  • While incorrectly descending at 3300 feet/min, the aircraft struck a 2710 foot ridge of Mont La Bloss
  • The crash killed 87 of the 96 people on board
  • The severe impact caused the ELT to not transmit
  • After the crash the plane caught fire destroying the flight data recorder
  • Known for mainly carrying business people
  • Airline cares about being on time, whatever it takes
  • Infamous for having aircraft fly 350 knots at less than 10,000 feet
  • High speed trains in France are their main competitors
  • Often known for removing GPWS from commercial aircraft due to "nuisance warnings"

Air Inter Flight 148

Crash Investigation

Presented By: Mike Walk, Patrick Stone, Sloan Parker

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