# NTSB SEA93LA044: Cessna 414A, N911AG, Rexburg, ID, December 19, 1992

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: December 19, 1992, 16:40 local (23:40 UTC)
- Place: Rexburg, ID
- Coordinates: 43.780456, -111.759338 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=43.7805&lon=-111.7593&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report August 13, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 42972
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA93LA044
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/42972/pdf
- Page: https://openairdocs.org/ntsb/SEA93LA044

## Probable cause

THE PILOT DID NOT SELECT THE REMAINING FUEL SUPPLY. FACTORS INCLUDE A DETERIORATED FUEL SELECTOR VALVE.

## Analysis

THE PILOT NOTED A FUEL IMBALANCE, WITH MORE FUEL REMAINING IN THE LEFT MAIN TANKS. A FORCED LANDING WAS MADE WHEN BOTH ENGINES LOST POWER, AFTER EXHAUSTING THE FUEL FROM THE RIGHT MAIN TANKS. THE PILOT FAILED TO ACCESS THE APPROXIMATE FIFTY GALLONS REMAINING OF THE LEFT MAIN FUEL SUPPLY BY POSITIONING THE RIGHT FUEL SELECTOR IN CROSSFEED POSITION FOR THE RIGHT ENGINE. LATER TROUBLE SHOOTING REVEALED THAT THE LEFT FUEL SELECTOR VALVE HAD NOT BEEN IN ITS DETENT, AND BOTH ENGINES HAD BEEN FEEDING FROM THE RIGHT MAIN TANKS. O RINGS IN THE FUEL VALVE HAD DETERIORAED TO THE EXTENT THAT THE INTERNAL SPOOL VALVE FELT LIKE IT WAS IN ITS DETENT WHEN IT WAS NOT.

## Sequence of events

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

- Loss of engine power(total) - nonmechanical, cruise - normal
  - all engines
  - fuel system,selector/valve - deteriorated (contributing factor)
  - fuel tank selector position - not selected, pilot in command (cause)
- Forced landing, descent - emergency
- On ground/water encounter with terrain/water, landing

## Aircraft

- Registration: [N911AG](https://openairdocs.org/deregistered/N911AG-2006-11-02), registration cancelled 2006-11-02, S/N 414A0438, built 1979 (OpenAirDocs)
- Reported make and model: CESSNA 414A
- Registry model: [Cessna 414A](https://openairdocs.org/model/cessna-414a) (registry code 2075907) (OpenAirDocs)
- Registry engine: [Continental TSIO-520 series](https://openairdocs.org/engine/continental-tsio-520-series) (registry code 17040, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 414A-0438
- Airframe hours: 2201
- Engines: CONTINENTAL TSIO-520-NB 310 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Dr. Charles O. Garrison
- Registered owner: Nine Eleven Alpha Golf, Inc
- Airworthiness certificate: Standard, Normal
- Last inspection: 100 hour, December 16, 1992, 6 hours before
- Departed: PIH, POCATELLO, ID
- Destination: PIH

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 57; commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 3, valid medical--no waivers/lim.; seat: left; flight hours: 902 total, 144 in this make and model, 724 as pilot in command, 18 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 340° at 5 knots
- Visibility: 7 statute miles
- Lowest ceiling: 3,600 ft overcast
- Temperature: 7 °F, dew point 1 °F
- Altimeter: 30.00 inHg
- Observed at: IDA, 30 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 19921219053369A](https://openairdocs.org/incident/19921219053369A), Dec 19, 1992: Cessna 414A, Rexburg, ID, Substantial damage. Lost both engines. Made off airport forced landing. Found fuel selector o rings hardened. Selectors not in detentes

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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