NTSB CAROL · Event
Event LAX94LA066
Registry · N7090L
FAA Aircraft Registry record.
Make / Model
YAKOVLEV YAK-55M
Year of manufacture
1993 · 0 years old at event
Engine
VEDENEYEV M14P (350 hp)
Seats / Engines
1 seats · 1 engine
Last airworthiness date
20150701
ADS-B equipped
Yes — Mode-S A97860
Registrant of record
MEDORE DOUGLAS A
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
UNDETERMINED.
Factual narrative
On November 20, 1993, at 1300 hours Pacific standard time, an experimental Yakovlev Yak-55M, N7090L, collided with the terrain while attempting a forced landing at Metz airport, Greenfield, California. The pilot was conducting a local visual flight rules aerobatic flight. The airplane, registered to John W. Heinrich, Concord, California, and operated by the pilot, sustained substantial damage. The certificated private pilot, the sole occupant, was not injured. Visual meteorological conditions prevailed. The flight originated at Metz airport at an undetermined time. The pilot contacted the Federal Aviation Administration on November 24, 1993. At that time, he reported that he was performing aerobatic maneuvers when he experienced engine problems. The pilot executed a forced landing to Metz airport, but the airplane's altitude was insufficient to make the runway. The pilot removed the airplane from the accident site without informing the National Transportation Safety Board. Neither the pilot nor the operator provided the Safety Board with the required Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1/2. THE PILOT REPORTED THAT WHILE EXECUTING AEROBATIC MANEUVERS THE ENGINE BEGAN TO RUN ROUGH. THE PILOT SAID THAT HE ATTEMPTED TO EXECUTE AN EMERGENCY LANDING AT THE AIRPORT, BUT THE ALTITUDE WAS INSUFFICIENT TO MAKE THE RUNWAY. THE PILOT REPORTED THIS ACCIDENT FOUR DAYS AFTER THE ACCIDENT AND HAD REMOVED THE AIRPLANE BEFORE INVESTIGATORS COULD EXAMINE IT. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1993_LAX94LA066.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
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