# NTSB ANC86LA090: Cessna 150, N1773Q, Talkeetna, AK, June 20, 1986

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: June 19, 1986, 17:30 local (Jun 20, 1986, 01:30 UTC)
- Place: Talkeetna, AK
- Coordinates: 62.450222, -149.789764 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=62.4502&lon=-149.7898&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 4686
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC86LA090
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/4686/pdf
- Page: https://openairdocs.org/ntsb/ANC86LA090

## Sequence of events

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

- Loss of engine power(partial) - nonmechanical, cruise - normal
  - fluid,fuel - water
  - fluid,fuel grade - improper
  - judgment - poor, pilot in command (contributing factor)
  - fuel system,cap - unlocked
  - aircraft preflight - inadequate, pilot in command (cause)
- Forced landing, descent - emergency
- Nose over, landing - flare/touchdown

## Analysis

THE STUDENT PILOT, WHO WAS CARRYING A PASSENGER, MIXED AUTOMOTIVE FUEL WITH AVIATION GASOLINE. THE AUTO GAS CONTAINED WATER CAUSING THE ENGINE TO RUN INTERMITTENTLY. THE AIRPLANE TURNED OVER DURING A FORCED LANDING IN A SWAMP. POST ACCIDENT INSPECTION RVEALED THE RIGHT FUEL TANK FILLER CAP WAS MISALIGNED IN A MANNER WHICH WOULD ALLOW SIPHONING.

## Aircraft

- Registration: [N1773Q](https://openairdocs.org/deregistered/N1773Q-2012-08-13), registration cancelled 2012-08-13, S/N 15073073, built 1971 (OpenAirDocs)
- Reported make and model: CESSNA 150
- Registry model: [Cessna 150L](https://openairdocs.org/model/cessna-150l) (registry code 2071826) (OpenAirDocs)
- Registry engine: [Continental 0-200 series](https://openairdocs.org/engine/continental-0-200-series) (registry code 17020, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 15073073
- Engines: CONTINENTAL O-200-A 100 horsepower reciprocating
- Damage: Substantial damage
- Flight: Business, Part 91
- Operator: Jerry J. Jaques
- Registered owner: Kevin B. Fitzgerald
- Airworthiness certificate: Standard, Normal
- Departed: TKA, TALKEETNA, AK
- Airport: 21AK, Montana Creek, runway 34, 2,400 × 0 ft, dirt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 29; student; medical: class 3, valid medical--no waivers/lim.; seat: left

## Weather

- Conditions: Visual (VMC), Day
- Wind: 190° at 10 knots
- Visibility: 30 statute miles
- Lowest ceiling: none
- Temperature: 70 °F, dew point 45 °F
- Altimeter: 29.00 inHg
- Observed at: TKA, 18 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 (OpenAirDocs).

- [Accident 19860619026849A](https://openairdocs.org/incident/19860619026849A), Jun 19, 1986: Cessna 150L, Talkeetna, AK, Substantial damage. Engine failed while student was flying a passenger. One fuel tank was empty due to a loose cap. Water in other tank.

## Other investigations on N1773Q (1)

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.

- [NTSB ANC73DAG70](https://openairdocs.org/ntsb/ANC73DAG70), Jan 3, 1973: Cessna 150L (N1773Q), Anchorage, AK, substantial damage

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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