ANC86IA010

NTSB incident investigation · Piper Navajo PA-31-350 · Kenai, AK · December 5, 1985

Incident · No injuriesIncident investigationFinal report
Date
December 5, 1985, 12:58 local (16:58 UTC)
Place
Kenai, AK
Injuries
6 uninjured
Damage
Minor damage
Phase of flight
Landing
Aircraft
N492SCPiper Navajo PA-31-350
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Safety recommendations
Yes
FAA report
19851205065929I
Case key
4611

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

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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.

Main gear collapsedLanding - roll
Landing gear,main gear - failure,partialCause
Landing gear - inadequateManufacturerFactor
Acft/equip,inadequate designManufacturerCause
Insufficient standards/requirements,manufacturerFaa(organization)Factor

Analysis

The pilot in command could not raise the landing gear properly after departure. He diverted to Kenai, Alaska, whereupon extending the gear he obtained three safe gear indications. The pilot landed the airplane and upon roll out the left main gear collapsed. Metalurgical examination of the right main gear landing gearlink assembly, pn 40279, revealed fatigue cracks in the inside radius of the fillet in the clevis end.

Aircraft

Registration
N492SC
Reported as
Piper Navajo PA-31-350 (NAVAJO PA-)
Category
Airplane
Serial number
31-7552108
Airframe hours
10,396
Engine
Lycoming TIO-540-J2BD, 350 horsepower, reciprocating
Damage
Minor damage
Flight
Part 135
Operator
South Central Air, Inc.
Airworthiness certificate
Standard, Normal
Last inspection
Continuous airworthiness · November 29, 1985
Departed
HOM · Homer, AK
Flight plan
IFR
Airport
ENA · Kenai, runway 1, 7,600 × 150 ft, snow

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
44
Certificate
Airline transport
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
3,678 total · 796 in this make and model · 316 in the last 90 days · 9 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
190° at 5 knots
Visibility
90 statute miles
Lowest ceiling
None
Temperature
19 °F
Observed at
ENA

FAA reports on this event · 1

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