Narrative:
The mechanic in charge of taxiing the empty aircraft allowed an avionics technician to occupy the pilots seat. They inadvertently deactivated the brake pressurization system. The aircraft struck a passenger jet way and caught fire.
PROBABLE CAUSE:
"Brakes(normal)..inadvertent deactivation..company maintenance personnel
Checklist..not used..company maintenance personnel
CONTRIBUTING FACTORS
Planning/decision..inadequate..company maintenance personnel"
Damaged on the ground
» ICAO Adrep Summary 2/91 (#1)
» NTSB
accident date: 09-06-1987
type: Boeing 727-90C
registration: N766AS
accident date: 09-06-1987
type: Boeing 727-90C
registration: N766AS
| Status: | Accident investigation report completed and information captured |
| Date: | Tuesday 9 June 1987 |
| Time: | 08:55 |
| Type: |  Boeing 727-90C |
| Operator: | Alaska Airlines |
| Registration: | N766AS |
| MSN: | 19728/536 |
| First flight: | 1968-02-17 (19 years 4 months) |
| Total airframe hrs: | 49937 |
| Engines: | 3 Pratt & Whitney JT8D-7A |
| Crew: | Fatalities: 0 / Occupants: 2 |
| Passengers: | Fatalities: 0 / Occupants: 0 |
| Total: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Destroyed |
| Aircraft fate: | Written off (damaged beyond repair) |
| Location: | Anchorage International Airport, AK (ANC) ( United States of America)
|
| Phase: | Pushback / towing (PBT) |
| Nature: | - |
| Departure airport: | - |
| - |
The mechanic in charge of taxiing the empty aircraft allowed an avionics technician to occupy the pilots seat. They inadvertently deactivated the brake pressurization system. The aircraft struck a passenger jet way and caught fire.
Probable Cause:
PROBABLE CAUSE:
"Brakes(normal)..inadvertent deactivation..company maintenance personnel
Checklist..not used..company maintenance personnel
CONTRIBUTING FACTORS
Planning/decision..inadequate..company maintenance personnel"
Accident investigation:
 |
|
Classification:
Damaged on the ground
Sources:
» Aviation Letter 248» ICAO Adrep Summary 2/91 (#1)
» NTSB
Photos
accident date: 09-06-1987
type: Boeing 727-90C
registration: N766AS
accident date: 09-06-1987
type: Boeing 727-90C
registration: N766AS
This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
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