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Atlas / NTSB / SEA90LA012

NTSB CAROL · Event

Event SEA90LA012

1989-11-10 SCAPPOOSE, Oregon, United States Airport · 1S4 None 1 aircraft Status: Completed

Registry · N4379G

FAA Aircraft Registry record.

Make / Model

MCCULLOCH AIRCRAFT CORP. J-2

Year of manufacture

1972 · 17 years old at event

Engine

LYCOMING O&VO-360 SER (180 hp)

Seats / Engines

2 seats · 1 engine

ADS-B equipped

Yes — Mode-S A540B9

Registrant of record

EVERGREEN AVIATION & SPACE MUSEUM

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

Probable cause & findings

DELAYED REMEDIAL ACTION BY THE FLIGHT INSTRUCTOR AND FAILURE OF THE STUDENT TO RELINGUISH CONTROL. FACTORS INCLUDE INADEQUATE AIRSPEED AND AN EXCESSIVE DESCENT RATE.

Factual narrative

DURING A LOCAL INSTRUCTIONAL FLIGHT, THE STUDENT PILOT ALLOWED THE GYROPLANE'S AIRSPEED TO GET TOO LOW DURING A SIMULATED EMERGENCY LANDING. AS A RESULT, THE GYROPLANE'S SINK RATE WAS TOO HIGH. THE FLIGHT INSTRUCTOR TOOK OVER AND ATTEMPTED TO INCREASE POWER, HOWEVER, SUFFICIENT AIRSPEED WAS NOT ATTAINED BEFORE A HARD LANDING WAS MADE. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12

Verbatim from NTSB's published report. Source file NTSB_1989_SEA90LA012.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.