NTSB LAX90DUG03 — 1990-02-23 · BANNING, California, United States

Current FAA registration · N4758

Make / Model: GROVE COUGAR
Year of manufacture: 1971 · 19 years old at event
Engine: LYCOMING 0-290 SERIES (140 hp)
Seats / Engines: 1 seats · 1 engine
Last airworthiness date: 20020612
ADS-B equipped: Yes — Mode-S A5D71D

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

N4758 GROVES Couger None

Probable cause & findings

PILOT'S IMPROPER WIND EVALUATION AND IMPROPER AIRCRAFT HANDLING AFTER LANDING. THE TAILWIND AND WIND GUSTS WERE FACTORS RELATING TO THE ACCIDENT.

Factual narrative

PILOT OF AN EXPERIMENTAL AIRCRAFT LANDED DOWNWIND ON RUNWAY 26 AND IT NOSED OVER. THE WINDS AT THE TIME WERE FROM 090 DEGREES AT 14 GUSTING TO 17 KNOTS. THE PILOT REPORTED NO MECHANICAL MALFUNCTIONS WITH THE AIRPLANE PRIOR TO THE ACCIDENT. THE PILOT STATED HE WAS NOT ABLE TO RECEIVE AIRPORT ADVISORIES NOR SEE THE WIND DIRECTION INDICATORS AND ELECTED TO LAND ON THE UPHILL RUNWAY. THE RUNWAY WAS 5,200 FEET LONG. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12

Verbatim from NTSB's published report. Source file NTSB_1990_LAX90DUG03.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

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