LAX93LA273

NTSB accident investigation · Cessna 172A · Moccasin, CA · July 4, 1993

Accident · Minor injuriesLimited investigationFinal report
Date
July 3, 1993, 17:00 local (Jul 4, 1993, 00:00 UTC)
Place
Moccasin, CA
Injuries
1 minor, 2 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N7875TCessna 172A
Weather
Visual (VMC) · Day
Status
Completed · report November 15, 1993
Report
Approved by Office Director
FAA report
19930703022199A
Case key
27980

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

Fuel exhaustion due to the pilot's failure to perform fuel consumption calculations. Factors related to this accident were: the pilot's inadequate preflight or inflight planning and preparation.

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) - nonmechanicalCruise
Fluid,fuel - exhaustionCause
Preflight planning/preparation - inadequatePilot in commandFactor
Fuel consumption calculations - not performedPilot in commandCause
In-flight planning/decision - inadequatePilot in commandFactor
Forced landingDescent - emergency
In flight collision with terrain/waterDescent - emergency
Object - tree(s)
Terrain condition - ravine

Analysis

The pilot did not perform any preflight or en route fuel calculations for the flight. The pilot landed at an airport to pickup a passenger. While returning to the initial departure airport, the engine sustained a total loss of power. During the subsequent forced landing, the airplane collided with a ravine. A post accident exam of the fuel tanks found only residual fuel remaining. An FAA operations inspector calculated an endurance of 4.5 hours possible. The total elapsed tachometer time was 5.0 hours. The pilot said he ran out of fuel in a post crash interview.

Aircraft

Registration
N7875T
Reported as
Cessna 172A
Category
Airplane
Serial number
47475
Airframe hours
3,686
Engine
Continental O-300-C, 145 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Stephen R. Fairchild, doing business as Columbia Aviation
Registered owner
Stephen R. Fairchild
Airworthiness certificate
Standard, Normal
Last inspection
Annual · July 3, 1993
Departed
022 · Columbia, CA

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
20
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
140 total · 50 in this make and model · 5 in the last 90 days

Weather

Conditions
Visual (VMC) · Day
Wind
330° at 12 knots
Visibility
30 statute miles
Lowest ceiling
None
Temperature
93 °F, dew point 45 °F
Altimeter
29.00 inHg
Observed at
MOD, 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.