ANC84IA031

NTSB incident investigation · Cessna 207 · Kotzebue, AK · January 14, 1984

Incident · No injuriesIncident investigationFinal report
Date
January 14, 1984, 17:22 local (21:22 UTC)
Place
Kotzebue, AK
Injuries
1 uninjured
Damage
Minor damage
Phase of flight
Initial climb
Aircraft
N75738Cessna 207
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19840114022549I
Case key
4242

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

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 power(total) - mech failure/malfTakeoff - initial climb
Engine assembly,crankshaft - fatigueCause
Inadequate quality controlManufacturerFactor
Forced landingDescent - emergency
In flight collision with terrain/waterLanding - flare/touchdown

Analysis

The plt stated that shortly after takeoff the eng started to run rough & then failed completely. Investigation revealed that the crankshaft had failed in fatique. Laboratory test showed a core hardness below the minimum specified.

Aircraft

Registration
N75738
Reported as
Cessna 207
Category
Airplane
Serial number
20700641
Airframe hours
2,428
Engine
Continental TSIO-520, 300 horsepower, reciprocating
Damage
Minor damage
Flight
Part 135
Registered owner
Bering Air, Inc.
Airworthiness certificate
Standard, Utility
Departed
OTZ · Kotzebue, AK
Destination
ORV · Noorvik, AK
Flight plan
VFR

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
33
Certificates
Commercial, Airline transport
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
4,855 total · 225 in this make and model · 4,747 as pilot in command · 280 in the last 90 days · 100 in the last 30 days · 5 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
80° at 10 knots
Visibility
50 statute miles
Lowest ceiling
None
Temperature
18 °F, dew point 10 °F
Altimeter
30.00 inHg

FAA reports on this event · 1

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