# Accident 19980322004119A: Gulstm AA1B, Tulsa, OK, March 22, 1998

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: March 22, 1998, 14:30 local time
- Place: Tulsa, OK
- Damage: Substantial damage
- Phase of flight: Fcd/Prec Ldg From Cruise
- Operating rules: General operating rules (Part 91)
- Location: 36.1540° N, 95.9928° W: Placed by OpenAirDocs: center of Tulsa, OK, within about 8 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=36.1540&lon=-95.9928&mi=10
- Aircraft: N9940L, a cancelled registration (https://openairdocs.org/deregistered/N9940L-2000-07-19) (OpenAirDocs)
- Registry model: Grumman American Avn. AA-1B (registry code 3960103, https://openairdocs.org/model/grumman-american-avn-aa-1b) (OpenAirDocs)
- Reported make and model: GULSTM AA1B
- Reported engine: LYC O320E2G
- Fatal injuries: 0
- Pilot flight hours: 447 total, 13 in this make and model, 2 in the last 90 days
- NTSB investigation: [NTSB FTW98LA154](https://openairdocs.org/ntsb/FTW98LA154) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19980322004119A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

ERAN OUT OF FUEL AND MADE AN EMERG LANDING, OTHER CIRCUM ARE UNKNOWN, TULSA, OK.. (.4)THE AIRPLANE EXPERIENCED A COMPLETE LOSS OF ENGINE POWER, FLLLOWED BY A FORCED LANDING, NEAR TULSA, OKLAHOMA.  THE AIRPLANE WAS RECEIVING FLIGHT FOLLOWING FROM TULSA APPROACH CONTROL AND DESCENDING FROM 4,500 FEET TO 3,000 FEET, WHEN THE POWER SUDDENTLY REDUCED, SURGED AND REDUCED.  THE PILOT STATED THAT THE CARBURETOR TEMPERATRUE GAUGE INDICATED 47 DEGREES FAHRENHEIT.  THE PILOT SWITCHED THE FUEL TANK SELECTOR SWITCH FROM THE LEFT TO THE RIGHT TANK, BUT THERE WAS NO CHANGE IN ENGINE PERFORMANCE.  THE PILOT WAS UNABLE TO MAINTAIN ALTITUDE AND WAS ASSIGNED VECTORS TO A NEARBY AIRSTRIP.  THE AIRPLANE WAS 100 YARDS FROM THE RUNWAY WHEN THE ENGINE LOST COMPLETE POWER.  THE AIRPLANE CONTACTED MUDDY TERRAIN SHORT OF THE INTENDED FIELD AND SLID 50 FEET, COMING TO REST INVERTED ON A FENCE.  THE PILOT REPORTED THAT FUEL WAS DRIPPING ON HIM AS HE EXITED THE AIRPLANE.  THE AIRPLANE AND ENGINE WERE EXAMINED AT THE SITE BY AN FAA INSPECTOR AND SUBSEQUENTLY AT THE ILIFF AIRCRAFT REPAIR AND SERVICE CO., INC., TULSA, OKLAHOMA, ON MARCH 24, 1998.  NO MECHANICAL ANOMALIES WERE FOUND THAT COULD HAVE CONTRIBUTED     TO THE LOSS OF POWER. (.19) ENGINE LOST POWER.  LANDED SHORT INTENDED FORCED LANDING FIELD.  NOSED OVER IN MUD.  REPORTED FUEL DRIPPING INVERTED.                           (-23) ON MARCH 22, 1998, AT 1600 CST, A GRUMMAN AMERICAN AA-1B AIRPLANE, N9940L, WAS SUBSTANTIALLY DAMAGED FOLLOWING A FORCED LANDING DUE TO A LOSS OF ENGINE POWER, NEAR TULSA, OKLAHOMA. THE PRIVATE PILOT AND HIS PASSENGER SUSTAINED MINOR INJURIES.

## The NTSB's investigation of this event (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 FTW98LA154](https://openairdocs.org/ntsb/FTW98LA154), Mar 22, 1998: Grumman American AA-1B (N9940L), Tulsa, OK, substantial damage. Probable cause: The complete loss of engine power for an undetermined reason. A factor was the lack of suitable terrain for the forced landing.

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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