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SEA91LA086

1991-04-17 · SPOKANE, Washington, United States · None · 1 aircraft · Status: Completed

Airport GEG

Current FAA registration · N9750Z

Make / Model
GRUMMAN G-21A
Engine
P&W R-985 SERIES (450 hp)
Seats / Engines
8 seats · 2 engines
Last airworthiness date
19610323
ADS-B equipped
Yes — Mode-S AD98A8

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

Probable cause & findings

THE PILOT-IN-COMMAND DID NOT MAINTAIN DIRECTIONAL CONTROL OF THE AIRPLANE. FACTORS WERE: THE PIC'S INADEQUATE COMPENSATE FOR THE WIND, HIS LIMITED FLIGHT EXPEREINCE IN THIS TYPE OF AIRPLANE, AND THE CHECK AIRMAN'S POOR SUPERVISION.

Factual narrative

THE PILOT IN-COMMAND DID NOT MAINTAIN DIRECTIONAL CONTROL OF THE AIRPLANE. FACTORS WERE THE PIC'S INADEQUATE COMPENSATION FOR THE WIND, HIS LIMITED FLIGHT EXPEREINCE IN THIS TYPE OF AIRPLANE, AND THE CHECK AIRMAN'S POOR SUPERVISION. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12

Verbatim from NTSB's published report. Source file NTSB_1991_SEA91LA086.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

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