NTSB CAROL · Event
Event LAX90FA060
Aircraft involved
Probable cause & findings
THE PILOT'S IMPROPER PREFLIGHT PLANNING/DECISION WHICH RESULTED IN THE LOSS OF TAIL ROTOR EFFECTIVENESS. CONTRIBUTING TO THE ACCIDENT WAS THE PILOT ALLOWING THE MAXIMUM GROSS WEIGHT OF THE AIRCRAFT TO BE EXCEEDED, AND THE TAILWIND.
Factual narrative
THE PILOT EXECUTED AN IMMEDIATE LEFT DOWNWIND CLIMBING TURN WHEN HE DEPARTED THE HELIPAD AND EXPERIENCED A LOSS OF TAIL ROTOR EFFECTIVENESS. BEFORE DEPARTING, THE PILOT FAILED TO ACCOUNT FOR THE DOWNWIND TURN AND THE HELICOPTER'S EXCEEDING THE MAXIMUM GROSS WEIGHT. THE POST ACCIDENT INVESTIGATION DISCLOSED THE LATERAL TRIM MOTOR EXCEEDED ITS PHYSICAL EXTENSION LIMITS WHICH INDICATES THAT THE TRIM MOTOR WAS OPERATING DURING THE IMPACT SEQUENCE WHEN ITS AIRFRAME ATTACHMENT POINT WAS BROKEN. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1989_LAX90FA060.txt.
Findings + structured fields enriched from FAA avall.mdb.
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