Plane Crash List

Bell 47G N739B

4 April 1990 · La Verne, California, United States · No injuries

Summary

On 4 April 1990 at about 20:58 local time, a Bell 47G registered N739B, operated by Airborne Helicopters, was involved in an accident near La Verne, California, United States. 2 people were on board and nobody was injured. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.

The record

Date
at 20:58
Classification
Accident
Location
La Verne, California, United States
Nearest airport
Brackett (POC)
Coordinates
34.1504, -117.7607
Aircraft
Bell 47G
Registration
N739B
Category
Helicopter
Engines
1
Operator
Airborne Helicopters
Operating rule
Part 91: General Aviation
Purpose of flight
Instructional
Phase of flight
Not recorded
Aircraft damage
Substantial
Weather
VMC
Light
Day
NTSB number
LAX90LA137

People

Nobody was injured.

On board Died Serious Minor Uninjured
2 0 0 0 2

Probable cause

THE HELICOPTER'S ROTOR SYSTEM BEING ALLOWED TO UNDERSPEED AS A RESULT OF IMPROPER USE OF FLIGHT CONTROLS BY THE DUAL STUDENT; IMPROPER SUPERVISION BY THE CERTIFIED FLIGHT INSTRUCTOR; AND DELAYED REMEDIAL ACTION BY THE CERTIFIED FLIGHT INSTRUCTOR WHICH ALLOWED THE IN FLIGHT COLLISION WITH THE RUNWAY.

Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.

Read the full NTSB narrative

ACCORDING TO THE INSTRUCTOR PILOT, THE AIRCRAFT BEGAN TO VIBRATE DURING TERMINATION OF A POWER RECOVERY AUTOROTATION. HE STATED THAT WHEN THE COMMERCIALLY RATED STUDENT PILOT APPLIED POWER, THE ENGINE DEVELOPED POWER, BUT THE ROTOR RPM DECAYED. THE AIRCRAFT COLLIDED WITH THE RUNWAY. THE INSTRUCTOR PILOT WAS LATE IN TAKING THE CONTROLS AND RECOVERING THE AIRCRAFT. AN FAA AIRWORTHINESS INSPECTOR EXAMINED THE HELICOPTER AND FOUND NO PRE-IMPACT MECHANICAL MALFUNCTIONS OR FAILURES.

Quoted verbatim from the NTSB record.

Other Bell 47 accidents

Date Aircraft Location Operator Outcome Died
1 Nov 1990 Bell 47J-2
N49DA
Gatlinburg, Tennessee, United States Pigeon Forge Helicopters, Inc. Serious injuries -
4 May 1990 Bell 47G
N9FK
Riverside, California, United States Riverside Air Service Minor injuries -
16 Jun 1990 Bell 47G-3B1
N67223
Cedar Rapids, Iowa, United States
no coordinates
Badger Helicopters, Inc. Fatal 3
2 Apr 1990 Bell 47G-3B-2
N9449J
Hillsboro, Oregon, United States Western Helicopter Service Serious injuries -
15 Nov 1990 Bell 47-G3-B
N2921W
Nantucket, Massachusetts, United States
no coordinates
Firefly, Inc. No injuries -
2 Sep 1990 Bell 47G-3B1
N73957
Canon City, Colorado, United States - Minor injuries -

All 1,633 records for this type

Other accidents in this area

Date Aircraft Location Operator Outcome Died
15 Apr 1990 Cessna 180
N9394C
Soledad, California, United States - No injuries -
10 Oct 1990 Cessna 150
N68350
Riverside, California, United States PAR Flight No injuries -
17 Apr 1990 Piper PA46
N4387S
Paso Robles, California, United States Piper Aircraft Corp. No injuries -
7 Oct 1990 Cessna 182M
N70892
Bakersfield, California, United States - No injuries -
1 Apr 1990 Piper J-3
N7363H
Creston, California, United States - Minor injuries -
11 Oct 1990 Bell 47G4
N477JM
Merced, California, United States John W. Myers Serious injuries -

All 170,864 records in United States