Bell 47G-3B-1 N11102

Summary

On 31 July 1983 at about 16:08 local time, a Bell 47G-3B-1 registered N11102 was involved in an accident near S. Lake Tahoe, California, United States. 3 people were on board and one was seriously injured, 2 had minor injuries. The aircraft was destroyed. No probable cause statement is available for this record.

Date

31 July 1983 at 16:08

Classification

Accident

Location

S. Lake Tahoe, California, United States

Coordinates

Not recorded

Aircraft

Bell 47G-3B-1

Registration

N11102

Category

Helicopter

Engines

1

Operator

Not recorded

Operating rule

Part 91: General Aviation

Purpose of flight

Unknown

Phase of flight

Not recorded

Aircraft damage

Destroyed

Weather

VMC

Light

Day

NTSB number

LAX83FA366

1 person was seriously injured.

The NTSB has not published a probable cause for this record. No probable cause statement is present in the source data.

Nothing about the cause is stated here that is not in the source record.

Read the full NTSB 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.

Quoted verbatim from the NTSB record.