ANC92FA083

NTSB accident investigation · Piper PA-31T3, T1040 · Ninilchik, AK · December 13, 1991

Accident · FatalField investigationFinal report
Date
December 13, 1991, 19:07 local (23:07 UTC)
Place
Ninilchik, AK
Injuries
1 fatal
Damage
Destroyed
Phase of flight
Enroute
Aircraft
N307SCPiper PA-31T3, T1040
Weather
Instrument (IMC) · Night/dark
Status
Completed · report May 27, 1993
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19911213056359A
Case key
5644

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

Undetermined.

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 control - in flightCruise - normal
Weather condition - turbulence in clouds
Weather condition - icing conditions
Reason for occurrence undeterminedCause
In flight collision with terrain/waterDescent - uncontrolled

Analysis

The flight was level at 10,000 feet MSL in IMC conditions when the controller noticed the airplane take a sharp right turn and descend rapidly. Attempts to contact the flight were negative. Examination of the accident showed all the major components present, however, impact damage precluded any flight control continuity check. The engines could not be recovered from the impact crater. The accident site was not accessible with specialized equipment.

Aircraft

Registration
N307SC
Reported as
Piper PA-31T3, T1040 (PA-31T3, T)
Category
Airplane
Serial number
8257009
Airframe hours
9,745
Engine
P&W PT-6A-11, 500 horsepower, turbo prop
Damage
Destroyed
Fire
On-Ground
Flight
Part 135
Operator
Southcentral Air, Inc.
Registered owner
Southcentral Air, Inc.
Airworthiness certificate
Standard, Normal
Last inspection
Continuous airworthiness · September 30, 1991 · 61 hours before
Departed
ADQ · Kodiak, AK
Destination
ENA · Kenai, AK
Flight plan
IFR

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
36
Certificate
Airline transport
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Flight hours
9,425 total · 1,900 in this make and model · 7,177 as pilot in command · 144 in the last 90 days · 40 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Instrument (IMC) · Night/dark
Wind
50° at 5 knots
Visibility
1 statute miles
Lowest ceiling
1,000 ft
Temperature
28 °F, dew point 28 °F
Altimeter
29.00 inHg
Observed at
ENA, 35 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.