SEA93FA071

NTSB accident investigation · Cessna 402B · Oakley, UT · March 2, 1993

Accident · FatalField investigationFinal report
Date
March 2, 1993, 05:28 local (12:28 UTC)
Place
Oakley, UT
Injuries
2 fatal
Damage
Destroyed
Phase of flight
Enroute
Aircraft
N3103PCessna 402B
Weather
Night/dark
Status
Completed · report December 3, 1993
Report
Approved by Office Director
FAA report
19930302042939A
Case key
42936

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

Poor inflight planning/decision. Factors to the accident were: dark night condition and terrain clearance was not maintained.

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 collision with terrain/waterCruise
Terrain condition - mountainous/hilly
Light condition - dark nightFactor
Clearance - not maintainedPilot in commandFactor
In-flight planning/decision - poorPilot in commandCause

Analysis

The flight took off at 0500 hours in dark visual meteorological conditions. Radar data indicates that the flight was heading in an easterly direction, towards its destination and had climbed to and leveled off at 12,500 feet. Three minutes prior to the last identified radar target, the pilot obtained a partial weather briefing, for the destination airports, from the flight service station. The wreckage was located in an area of high mountainous terrain. Evidence indicated that the flight collided with a ridge line at the 12,400 foot level. The main wreckage was located on the east side of the ridge at 11,400 feet. During the post crash investigation, there was no evidence of a mechanical failure or malfunction.

Aircraft

Registration
N3103P
Reported as
Cessna 402B
Category
Airplane
Serial number
402B0821
Airframe hours
8,436
Engine
Continental TSIO-520-E, 300 horsepower, reciprocating
Damage
Destroyed
Fire
On-Ground
Flight
Part 135
Registered owner
American Check Transport
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · February 15, 1993 · 149 hours before
Departed
U42 · Salt Lake City, UT
Destination
RWL · Rawlins, WY

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
Certificates
Flight instructor, Airline transport, Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Left
Toxicology
Performed
Flight hours
5,521 total · 502 in this make and model · 3,764 as pilot in command · 295 in the last 90 days · 94 in the last 30 days

Weather

Conditions
Night/dark
Wind
160° at 5 knots
Visibility
6 statute miles
Lowest ceiling
8,000 ft broken
Temperature
25 °F, dew point 19 °F
Altimeter
30.00 inHg
Observed at
SLC, 77 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.