ANC92LA109

NTSB accident investigation · De Havilland DHC-3 · Mcgrath, AK · July 22, 1992

Accident · No injuriesLimited investigationFinal report
Date
July 22, 1992, 15:30 local (23:30 UTC)
Place
Mcgrath, AK
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N41755De Havilland DHC-3
Weather
Visual (VMC) · Day
Status
Completed · report September 28, 1993
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19920722026779A
Case key
5757

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

On this page

Probable cause

The fire in the engine accessory drive assembly. Factor was the rough an uneven forced landing area.

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.

FireCruise
Accessory drive assy - fireCause
Forced landingDescent - emergency
Hard landingLanding - flare/touchdown
Terrain condition - rough/unevenFactor

Analysis

The airplane was in cruise flight when the pilot noticed a slight fire smell. The engine began to lose power slowly and would not respond to engine control inputs. The pilot landed on a gravel bar and had to extinguish the fire in the engine accessory case with the fire extinguisher and dirt. The airplane has not been recovered and the engine has not been examined.

Aircraft

Registration
N41755
Reported as
De Havilland DHC-3
Category
Airplane
Serial number
339
Airframe hours
10,587
Engine
P&W R-1340-AN2, 600 horsepower, reciprocating
Damage
Substantial damage
Fire
Both
Flight
Part 135
Operator
Woods Air Service, Inc.
Registered owner
Woods Air Fuel, Inc.
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · April 10, 1992 · 50 hours before
Departed
5NI · Nikoli, AK
Destination
Silvertip Lodge, AK
Flight plan
Company VFR

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
44
Certificates
Flight instructor, Airline transport
Airplane ratings
Multi-engine land, Single-engine land, Single-engine sea
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Left
Toxicology
Performed
Flight hours
8,500 total · 320 in this make and model · 8,045 as pilot in command · 40 in the last 90 days · 18 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
150° at 3 knots
Visibility
30 statute miles
Lowest ceiling
None
Temperature
64 °F

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 N41755 · 2

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