ANC89LA147

NTSB accident investigation · Cessna 175 · Anchorage, AK · August 21, 1989

Accident · No injuriesLimited investigationFinal report
Date
August 20, 1989, 20:25 local (Aug 21, 1989, 04:25 UTC)
Place
Anchorage, AK
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N6929ECessna 175
Weather
Visual (VMC) · Day
Status
Completed · report September 23, 1992
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19890820033729A
Case key
5244

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

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Probable cause

Failure of the accessory drive (crankshaft) dowel pin and/or gear bolt, which resulted in the accessory drivegear becoming disconnected from the crankshaft.

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 power(total) - mech failure/malfCruise - normal
Accessory drive assy,drive gear - disconnectedCause
Forced landingDescent - emergency
On ground/water collision with objectLanding - flare/touchdown
Object - tree(s)Factor

Aircraft

Registration
N6929E
Reported as
Cessna 175
Category
Airplane
Serial number
56429
Airframe hours
1,952
Engine
Lycoming O-360-A1A, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Devincenzi, Roy A.
Registered owner
Devincenzi, Roy A.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · March 1, 1989 · 16 hours before
Departed
SXQ · Soldotna, AK
Destination
MRI · Anchorage, AK
Airport
NONE

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
56
Certificate
Private
Airplane ratings
Single-engine sea, Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
450 total · 300 in this make and model · 400 as pilot in command · 15 in the last 90 days · 6 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
250° at 10 knots
Visibility
30 statute miles
Lowest ceiling
None
Temperature
55 °F
Altimeter
29.00 inHg

FAA reports on this event · 1

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