ANC92LA058

NTSB accident investigation · Piper PA-31-350 · Kotzebue, AK · April 4, 1992

Accident · No injuriesLimited investigationFinal report
Date
April 4, 1992, 09:36 local (13:36 UTC)
Place
Kotzebue, AK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N3555CPiper PA-31-350
Weather
Instrument (IMC) · Day
Status
Completed · report May 26, 1993
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19920404008929A
Case key
5710

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

Pilot factor in that the proper glidepath and altitude was not maintained. Factors to the accident were: inattentiveness and snow.

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.

In flight encounter with weatherApproach - iaf to faf/outer marker (ifr)
Weather condition - snowFactor
In flight collision with terrain/waterApproach - iaf to faf/outer marker (ifr)
Terrain condition - snow covered
Proper glidepath - not maintainedPilot in commandCause
InattentivePilot in commandFactor
Altitude - not maintainedPilot in commandCause

Analysis

During the IFR approach to the airport, the flight had been cleared for the ils/dme for runway 8. The pilot performed the published procedure turn and was established on the localizer and glide slope at about 5.5 miles DME. The flight continued the descent as the pilot completed the before landing checklist. At about 5 miles DME, the pilot attempted to call the fss to report final approach fix inbound, however, he had to wait for another airplane transmitting. The pilot then contacted the fss and reported 4.5 miles DME. Shortly after the radio call, the pilot felt the airplane contact the ground. The pilot reported that his last instrument scan that he could remember showed that he was on the glide path and localizer at an altitude of 1,250 feet. After the accident, the pilot reported that the visibility was about 100 yards and blowing snow.

Aircraft

Registration
N3555C
Reported as
Piper PA-31-350
Category
Airplane
Serial number
31-8052058
Airframe hours
3,989
Engine
Lycoming TIO-540-J2BD, 350 horsepower, reciprocating
Damage
Substantial damage
Flight
Part 135
Operator
Frontier Flying Service
Registered owner
Poineer Aviation Inc.
Airworthiness certificate
Standard, Normal
Last inspection
AAIP · April 3, 1992 · 8 hours before
Departed
FAI · Fairbanks, AK
Flight plan
IFR
Airport
OTZ · Kotzebue, runway 8, 5,900 × 150 ft, asphalt

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
35
Certificates
Commercial, Airline transport
Airplane ratings
Single-engine land, Multi-engine land, Single-engine sea
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
8,367 total · 4,823 in this make and model · 8,076 as pilot in command · 285 in the last 90 days · 98 in the last 30 days · 6 in the last 24 hours

Weather

Conditions
Instrument (IMC) · Day
Wind
100° at 14 knots
Lowest ceiling
400 ft overcast
Altimeter
30.00 inHg
Observed at
OTZ, 4 nm away

FAA reports on this event · 1

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