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SEA88IA019

1987-11-17 · PORT ANGELES, Washington, United States · None · 1 aircraft · Status: Completed

Airport CLM

N806BA has since been reassigned. It is now registered to a different aircraft (AIR TRACTOR INC AT-802, built 2016), which was not involved in this event.

Aircraft involved

Factual narrative

BOTH GENERATOR LIGHTS CAME ON ALONG WITH THE LEFT AND RIGHT FUEL PRESSURE LIGHTS. THE AIRCRAFT WAS BEING FLOWN BACK TO THE AIRPORT FOR A PRECAUTIONARY LANDING, WHEN THE ANNUNCIATOR PANEL LIGHTS BEGAN TO FLICKER. WHEN LANDING FLAPS WERE SELECTED THEY DID NOT OPERATE. THE LANDING GEAR WAS LOWERED AND THREE IN THE GREEN WAS OBSERVED. HOWEVER, THE NOSE GEAR DID NOT FULLY EXTEND. DURING THE LANDING, DIRECTIONAL CONTROL WAS LOST WITH THE AIRCRAFT VEERING TO THE LEFT OF THE RUNWAY. THIS WAS THE CAPTAINS FIRST FLIGHT IN THE A-MODEL, AS HE HAD BEEN ACCUSTOMED TO FLYING THE C- MODEL. THE A-MODELS' AUTO IGNITION AND ENGINE START GENERATOR SWITCHES ARE IN REVERSE POSITION TO THE C-MODEL. IT IS PROBABLE THAT THE CAPTAIN HAD SELECTED ENGINE START, OPERATING FROM BATTERY POWER, INSTEAD OF AUTO IGNITION, THUS LOSING BOTH GENERATORS. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12

Verbatim from NTSB's published report. Source file NTSB_1987_SEA88IA019.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

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