ANC89FA119

NTSB accident investigation · Cessna 207 · 44 Nw Fairbanks, AK · July 11, 1989

Accident · No injuriesField investigationFinal report
Date
July 10, 1989, 17:45 local (Jul 11, 1989, 01:45 UTC)
Place
44 Nw Fairbanks, AK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N91052Cessna 207
Weather
Visual (VMC) · Day
Status
Completed · report September 30, 1991
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19890710021549A
Case key
5116

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

Improper planning/decision by the pilot, which resulted in fuel starvation. Factors related to the accident were: inaccurate fuel consumption calculations, inadequate fuel supply, turbulence, tailwind, terrain conditions, and trees (willows) in the emergency landing area.

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 - normal
Planning/decision - improperPilot in commandCause
Fuel consumption calculations - inaccuratePilot in commandFactor
Fuel supply - inadequatePilot in commandFactor
Weather condition - turbulenceFactor
Fluid,fuel - starvationCause
Forced landingApproach - vfr pattern - final approach
In flight collision with objectApproach - vfr pattern - final approach
Terrain condition - mountainous/hillyFactor
Terrain condition - high obstruction(s)Factor
Terrain condition - sand bar
Weather condition - tailwindFactor
Object - tree(s)Factor

Analysis

The plt rprtd that before reaching his destn, the eng lost power over wooded mountainous terrain. He turned the acft back to land downwind on a sandbar, but overshot & touched down in willows. He stated that earlier, he had fully svcd the plane & flown it 1 hr. He calculated there was 4 hrs of fuel remaining & the flt should have taken only 2 hrs & 40 min. Draining of the fuel tanks after the acdnt revealed there was 5 gal in the left wing tank & less than 1 pint in the rgt tank. According to the flt manual, this left only 1.5 gal of usable fuel. The plt rprtd there was light turbc during the flt. Calculations revealed the acft needed an adnl 5.4 gal of fuel to complete the flt.

Aircraft

Registration
N91052
Reported as
Cessna 207
Category
Airplane
Serial number
20700039
Engine
Continental IO-520-F, 300 horsepower, reciprocating
Damage
Substantial damage
Flight
Part 135
Operator
Larry'S Flying Service
Registered owner
Larry'S Flying Service
Airworthiness certificate
Standard, Normal
Departed
FYU · Fort Yukon, AK
Destination
FAI · Fairbanks, AK
Flight plan
VFR

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
39
Certificates
Flight instructor, Commercial
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
6,315 total · 81 in this make and model · 81 in the last 90 days · 27 in the last 30 days · 7 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
250° at 10 knots
Visibility
60 statute miles
Lowest ceiling
None
Temperature
61 °F

FAA reports on this event · 1

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