NTSB Identification: ANC87IA077.
The docket is stored on NTSB microfiche number 34021.
Incident occurred Tuesday, June 09, 1987 in ANCHORAGE, AK
Probable Cause Approval Date: 07/10/1989
Aircraft: BOEING 727-90C, registration: N766AS
Injuries: 11 Minor.

NTSB investigators used data provided by various sources and may not have traveled in support of this investigation to prepare this aircraft incident report.

THE MECHANIC IN CHARGE OF TAXIING THE BOEING 727 ALLOWED AN UNAUTHORIZED AVIONICS TECHNICIAN TO OCCUPY THE PILOT SEAT. THEY INADVERTENTLY DEACTIVATED THE BRAKE PRESSURIZATION SYSTEM AND STRUCK A PASSENGER JETWAY AT THE TERMINAL GATE. AN ENSUING FIRE DESTROYED THE AIRPLANE AND A COMPANY GROUND VEHICLE AND EXTENSIVELY DAMAGED THE JETWAY. THE TERMINAL GATE WAS ALSO DAMAGED. A TOTAL OF 11 PERSONS WERE INJURED.

The National Transportation Safety Board determines the probable cause(s) of this incident to be:

BRAKES(NORMAL)..INADVERTENT DEACTIVATION..COMPANY MAINTENANCE PERSONNEL

The National Transportation Safety Board determines the probable cause(s) of this incident to be:

CHECKLIST..NOT USED..COMPANY MAINTENANCE PERSONNEL



Contributing Factors

PLANNING/DECISION..INADEQUATE..COMPANY MAINTENANCE PERSONNEL

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