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Atlas / NTSB / LAX91LA056

NTSB CAROL · Event

Event LAX91LA056

1990-12-17 LIVERMORE, California, United States Airport · LVK None 1 aircraft Status: Completed

Registry · N4722P

FAA Aircraft Registry record.

Make / Model

MOONEY M20J

Engine

LYCOMING IO-360-A3B6 (200 hp)

Seats / Engines

4 seats · 1 engine

Last airworthiness date

20150512

ADS-B equipped

Yes — Mode-S A5CB34

Registrant of record

EAC PROPERTY MANAGEMENT LLC

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

Probable cause & findings

THE STUDENT PILOTS FAILURE TO MAINTAIN DIRECTIONAL CONTROL DURING THE LANDING. A FACTOR IN THE ACCIDENT WAS HIS LACK OF TOTAL EXPERIENCE.

Factual narrative

THE 28 HOUR SOLO STUDENT PILOT WAS PRACTICING TAKEOFFS AND LANDINGS ON RUNWAY 25R AND WAS ON HIS FOURTH LANDING WHICH WAS TO BE A TOUCH AND GO. THE AIRCRAFT DEPARTED THE LEFT SIDE OF THE RUNWAY AND COLLIDED WITH ROUGH TERRAIN AND NOSED OVER INVERTED. THE PILOT STATED TO FAA SAFETY INSPECTORS THAT IT FELT LIKE THE NOSE WHEEL STEERING DID NOT WORK. THE AIRCRAFT WAS INSPECTED BY FAA AIRWORTHINESS INSPECTORS WHO REPORTED THAT NO PREIMPACT MECHANICAL MALFUNCTIONS OR FAILURES WERE IDENTIFIED. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12

Verbatim from NTSB's published report. Source file NTSB_1990_LAX91LA056.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

Related research

What the literature says.

Academic papers and agency reports matching this event's aircraft type or causal vocabulary (icing). Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.

Browse the full corpus — academia portal ↗