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Atlas / NTSB / LAX83FA366

NTSB CAROL · Event

Event LAX83FA366

1983-07-31 S. LAKE TAHOE, California, United States Serious 1 aircraft Status: Completed

Registry · N11102

FAA Aircraft Registry record.

Make / Model

BELL 47G-3B-1

Year of manufacture

1965 · 18 years old at event

TCDS

2H3 · SCOTT'S-BELL 47 INC

Engine

LYCOMING TVO-435-GIA (280 hp)

Seats / Engines

3 seats · 1 engine

Last airworthiness date

19720607

ADS-B equipped

Yes — Mode-S A0325D

Registrant of record

FLY RIGHT AVIATION LLC

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

Factual narrative

DURING TAKEOFF OVER DESCENDING TERRAIN IN A MOUNTAINOUS AREA, THE RPM BEGAN DECAYING WHEN THE HELICOPTER HAD ACCELERATED TO 40 KTS & WAS ABOUT 75 FT AGL. THE PLT APPLIED MORE THROTTLE & INCREASED THE COLLECTIVE, THEN NOTED THAT THE MANIFOLD PRESSURE WAS DECREASING & THE RPM CONTINUED TO DECAY. THE HELICOPTER SETTLED TO THE GROUND, ROLLED ONTO ITS LEFT SIDE & CAME TO REST INVERTED. AN EXAM REVEALED NO REASON FOR THE LOSS OF POWER. THE DENSITY ALT WAS ABOUT 8100 FT. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12

Verbatim from NTSB's published report. Source file NTSB_1983_LAX83FA366.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.