Date:	Tuesday 9 June 1987
Time:	08:55
Type:	Boeing 727-90C
Owner/operator:	Alaska Airlines
Registration:	N766AS
MSN:	19728/536
Year of manufacture:	1968
Total airframe hrs:	49937 hours
Engine model:	Pratt & Whitney JT8D-7A
Fatalities:	Fatalities: 0 / Occupants: 2
Aircraft damage:	Destroyed, written off
Category:	OT
Location:	Anchorage International Airport, AK (ANC) -   United States of America
Phase:	Pushback / towing
Nature:	-
Departure airport:	-
Destination airport:	-
Investigating agency:	NTSB
Confidence Rating:	Accident investigation report completed and information captured

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"

Aviation Letter 248
ICAO Adrep Summary 2/91 (#1)
NTSB

photo (c) Brian Maddison

photo (c) C. Waldenmaier, via Werner Fischdick; Oakland International Airport, CA (OAK); March 1984

Date/time	Contributor	Updates