# NTSB ANC82IA095: Cessna C-207, N7394U, Near Dillingham, AK, September 21, 1982

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Incident investigation · Final report
- Date: September 21, 1982, 14:28 local (22:28 UTC)
- Place: Near Dillingham, AK
- Coordinates: 58.820354, -157.859558 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=58.8204&lon=-157.8596&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 5 uninjured
- Status: Completed, report September 21, 1983
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 71861
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC82IA095
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/71861/pdf
- Page: https://openairdocs.org/ntsb/ANC82IA095

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Loss of engine power(total) - nonmechanical, climb - to cruise
  - fluid,fuel - starvation (cause)
  - emergency procedure - improper, pilot in command (cause)
  - fuel system,tank - buckled (cause)
- On ground/water encounter with terrain/water, landing - roll
  - unsuitable terrain or takeoff/landing/taxi area (cause)

## Analysis

SHORTLY AFTER TAKEOFF, THE AIRCRAFT EXPERIENCED A POWER FAILURE. THE PILOT STATED THAT WHEN THE POWER LOSS OCCURRED HE SWITCHED THE FUEL SELECTOR FROM THE LEFT TANK TO THE RIGHT TANK AND SELECTED "MAX HI-ON" ON THE FUEL BOOST PUMP. HIS ATTEMPTS TO RESTART THE ENGINE WERE UNSUCCESSFUL. THE PILOT FURTHER STATED THAT AFTER THE MISHAP HE CHECKED BOTH FUEL TANKS; THE LEFT TANK WAS EMPTY AND THE RIGHT TANK WAS PARTIALLY FULL. HE ALSO STATED THAT ON A PREVIOUS FLIGHT THAT DAY, FUEL WAS SIPHONING FROM THE LEFT TANK, BUT THE CONDITION ALLEVIATED ITSELF WHEN HE RESECURED THE FUEL CAP. FUEL SIPHONING USUALLY OCCURRS WHEN THE BOTTOM OF THE FUEL BLADDER IS NOT SECURED AND THE BLADDER COLLAPSES UPWARD. THIS CONDITION CAN CAUSE ERRONEOUS FUEL QUANTITY INDICATIONS. A REVIEW OF THE AIRCRAFT FLIGHT MANUAL INDICATED THAT ACTUATION OF THE "MAX HI-ON" HALF OF THE FUEL BOOST PUMP SWITCH DURING ENGINE RESTART CAN CAUSE FLOODING OF THE INTAKE MANIFOLDS.

## Aircraft

- Registration: [N7394U](https://openairdocs.org/deregistered/N7394U-2020-01-17), registration cancelled 2020-01-17, S/N 20700437, built 1978 (OpenAirDocs)
- Reported make and model: CESSNA C-207
- Registry model: [Cessna 207A](https://openairdocs.org/model/cessna-207a) (registry code 2073604) (OpenAirDocs)
- Registry engine: [Continental IO-520 series](https://openairdocs.org/engine/continental-io-520-series) (registry code 17032, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 20700437
- Airframe hours: 2738
- Engines: CONTINENTAL IO-520-F 300 horsepower reciprocating
- Damage: Minor damage
- Flight: Part 135
- Operator: Yute Air Alaska Inc.
- Registered owner: Yute Air Alaska Inc.
- Departed: MANAKOTAK, AK
- Destination: DLG, DILLINGHAM, AK
- Flight plan: VFR

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 36; commercial, flight instructor; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 2, valid medical--no waivers/lim.; flight hours: 6,845 total, 601 in this make and model, 6,609 as pilot in command, 377 in the last 90 days, 6 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 180° at 25 knots
- Visibility: 50 statute miles
- Lowest ceiling: 2,000 ft broken
- Temperature: 122 °F
- Altimeter: 29.00 inHg

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Incident 19820921054859I](https://openairdocs.org/incident/19820921054859I), Sep 21, 1982: Cessna 207A, Dillingham, AK, Minor damage. Ran left fuel tank dry. Unable to restart on fuel tank. Landed in tundra. Reason for no restart unknown.

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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