ANC98LA012

NTSB accident investigation · Cessna 207 · Alakanuk, AK · December 15, 1997

Accident · No injuriesLimited investigationFinal report
Date
December 15, 1997, 13:18 local (17:18 UTC)
Place
Alakanuk, AK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N707FYCessna 207
Weather
Visual (VMC) · Day
Status
Completed · report November 6, 1998
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19971215038989A
Case key
3107

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Probable cause

the pilot's mismanagement of the airplane's fuel which led to the loss of engine power due to fuel starvation.

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(partial) - nonmechanicalApproach
Fluid,fuel - starvationCause
Fuel management - inadequatePilot in commandCause
Forced landingEmergency descent/landing
On ground/water collision with objectEmergency descent/landing
Object - tree(s)

Analysis

The pilot departed on a CFR Part 135 cargo flight that included several stops. During the trip, the pilot indicated he operated the airplane on the right fuel tank for 30 minutes. During the balance of trip, the pilot utilized the left fuel tank. Just prior to landing at the accident destination the engine began to run rough and sputter. The pilot switched the fuel selector from the left fuel tank to the right tank, and activated the engine boost pump. The engine did not respond, and the pilot switched back to the left tank while activating the engine starter. The pilot noticed the airplane was too high to land at the approach end of the destination airport runway, and he selected an emergency landing area off the departure end of the runway. During the landing, the airplane collided with numerous trees, and received damage to the left wing, fuselage, and landing gear. The Director of Operations for the operator reported that following the accident he inspected the accident airplane. The inspection revealed no fuel in the left wing fuel tank, and no fuel in the left fuel reservoir tank. The operator indicated there was no mechanical malfunction with the airplane.

Factual narrative

On December 15, 1997, about 1318 Alaska standard time, a Cessna 207 airplane, N707FY, sustained substantial damage during a forced landing at the Alakanuk Airport, Alakanuk, Alaska. The airplane was being operated as a visual flight rules (VFR) cargo flight under Title 14 CFR Part 135 when the accident occurred. The airplane is registered to Village Aviation Inc., Anchorage, Alaska, and operated by Camai Air, Bethel, Alaska. The certificated commercial pilot, the sole occupant, was not injured. Visual meteorological conditions prevailed. VFR company flight following procedures were in effect. The flight originated at the Emmonak Airport, Emmonak, Alaska, about 1313.

During a telephone conversation with the National Transportation Safety Board (NTSB) investigator-in-charge (IIC), on December 16, 1997, at 0830, the Director of Operations for Camai Air reported the pilot was landing at Alakanuk with a load of cargo. About 700 to 800 feet above the ground, the engine began to run rough, and sputter. The pilot performed a forced landing about 1/8 mile from the Alakanuk Airport.

In the pilot/operator report (NTSB form 6120.1/2) submitted by the operator, the pilot reported his route of flight was a trip from Bethel, to Hooper Bay, Alaska, to Emmonak, and then to Alakanuk. During the trip, the pilot indicated he operated the airplane on the right fuel tank for 30 minutes. During the balance of the trip, the pilot selected the left fuel tank. The pilot indicated when the engine began to lose power, he switched the fuel selector from the left fuel tank to the right tank, and activated the engine boost pump. The engine did not respond, and the pilot switched back to the left tank while activating the engine starter.

The pilot reported he noticed the airplane was too high to land at the approach end of runway 18 at the Alakanuk Airport, and too low to make a turn for landing on runway 36. The pilot selected an emergency landing area off the departure end of runway 18. During the landing, the airplane collided with numerous trees, and received damage to the left wing, fuselage, and landing gear.

During a telephone conversation with the NTSB IIC on December 29, 1997, at 1050, the Director of Operations for the operator reported he inspected the accident airplane. The inspection revealed no fuel in the left wing fuel tank, and no fuel in the left fuel reservoir tank. In the NTSB form 6120.1/2, the operator indicated there was no mechanical malfunction.

Aircraft

Registration
N707FY
Reported as
Cessna 207
Category
Airplane
Serial number
20700063
Airframe hours
17,391
Engine
Continental IO-520-F, 300 horsepower, reciprocating
Damage
Substantial damage
Flight
Part 135
Registered owner
Village Aviation Inc.
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · December 10, 1997 · 15 hours before
Departed
ENM · Emmonak, AK
Destination
AUK
Flight plan
Company VFR
Airport
AUK · Alakanuk, runway 18, 2,200 × 55 ft, gravel

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
25
Certificates
Flight instructor, Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
1,592 total · 207 in this make and model · 1,433 as pilot in command · 142 in the last 90 days · 41 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
360° at 5 knots
Visibility
10 statute miles
Lowest ceiling
4,500 ft broken
Temperature
10 °F

FAA reports on this event · 1

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

Other investigations on N707FY · 1

Matched to the same aircraft by N-number and date.