NTSB Identification: SEA00IA062.
The docket is stored in the Docket Management System (DMS). Please contact Records Management Division
Scheduled 14 CFR operation of ALASKA AIRLINES, INC.
Incident occurred Saturday, April 01, 2000 in SEATTLE, WA
Probable Cause Approval Date: 01/02/2001
Aircraft: McDonnell Douglas MD-82, registration: N934AS
Injuries: 145 Uninjured.

NTSB investigators used data provided by various sources and may have traveled in support of this investigation to prepare this aircraft incident report.

The MD-82 aircraft was parked at gate C-9 at night with the jetway still attached, and most of the passengers had boarded. The aircraft's APU was inoperative and electrical power was being supplied by an external ground power unit. Additionally, cabin air conditioning was being provided by an external ground source through the aircraft's right engine air conditioning system. Electrical ground power then failed resulting in the aircraft's cabin lights going out and the emergency floor track lights automatically illuminating. Smoke/fumes from the electrical ground power cart exhaust were pulled into the aircraft's cabin through the external ground source. Passengers and crew noted the smoke and then evacuated the aircraft via the forward, left cabin door (L-1) through the jetway and into the terminal without injury.

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

Contaminated air being ducted into the aircraft's cabin from the engine exhaust of a nearby ground power cart.

Full narrative available

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