LAX87LA222

NTSB accident investigation · Bell 47G-3B-1 · Payson, AZ · June 2, 1987

Accident · Serious injuriesLimited investigationFinal report
Date
June 2, 1987, 09:05 local (16:05 UTC)
Place
Payson, AZ
Injuries
2 serious
Damage
Destroyed
Phase of flight
Enroute
Aircraft
N73916Bell 47G-3B-1
Weather
Visual (VMC) · Day
Status
Completed · report February 24, 1989
Report
Approved by Office Director
FAA report
19870602021119A
Case key
25599

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Loss of engine powerCruise
Throttle/power lever,linkage - not engagedCause
In flight collision with objectDescent - emergency
Terrain condition - mountainous/hillyFactor
Object - tree(s)Factor

Analysis

A bell 47G-3B-1 collided with trees and was subsequently destroyed by fire after a loss of power in a remote wilderness area. The pilot reported the engine went to idle during flight. He was unable to regain engine RPM by manipulation of the throttle. The pilot was forced to enter autorotation. The pilot was forced to enter trees during the landing. The aircraft was examined by the FAA. The examining inspector stated he was unable to establish control continuity of the helicopters throttle linkage.

Aircraft

Registration
N73916
Reported as
Bell 47G-3B-1
Category
Helicopter
Serial number
2805
Airframe hours
3,808
Engine
Lycoming TV0-435-B1A, 270 horsepower, reciprocating
Damage
Destroyed
Fire
On-Ground
Flight
Personal · Part 91
Operator
Sherrill Farms, Inc.
Registered owner
Sherrill, Charles B.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · June 27, 1986 · 22 hours before
Departed
SDL · Scottsdale, AZ

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
59
Certificate
Private
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
15,000 total · 1,145 in this make and model · 90 in the last 90 days · 20 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
45° at 5 knots
Visibility
50 statute miles
Lowest ceiling
None

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.

Other investigations on N73916 · 2

Matched to the same aircraft by N-number and date.