# NTSB DEN91LA129: Cessna 152, N93151, Stillwater, OK, September 12, 1991

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: September 12, 1991, 15:50 local (20:50 UTC)
- Place: Stillwater, OK
- Coordinates: 36.08052, -97.069412 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=36.0805&lon=-97.0694&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed, report March 31, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 18135
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN91LA129
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/18135/pdf
- Page: https://openairdocs.org/ntsb/DEN91LA129

## Probable cause

POWER LOSS DUE TO FUEL EXHAUSTION AND THE PILOT'S FAILURE TO REFUEL.  A FACTOR WAS:  THE ROUGH UNEVEN TERRAIN.

## 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
  - fluid,fuel - exhaustion (cause)
  - refueling - not obtained, pilot in command (cause)
- Forced landing, descent - emergency
- Nose over, landing - roll
  - terrain condition - open field
  - terrain condition - rough/uneven (contributing factor)

## Analysis

THE PILOT WAS ON THE LAST LEG OF A STILLWATER-CLINTON-GUTHRIE-STILLWATER, OK, CROSS COUNTRY FLIGHT (233 MILES) WHEN THE ENGINE LOST POWER.  DURING THE ENSUING FORCED LANDING, THE AIRPLANE OVERTURNED.  NO FUEL STAINS WERE NOTED BENEATH THE AIRPLANE.  RECORDS SHOWED THE AIRPLANE HAD FLOWN 1.2 HOURS PRIOR TO THE STUDENT USING IT FOR 3.1 HOURS.  THE AIRPLANE HAD STANDARD FUEL TANKS (25.5 GALLONS USABLE).  THIS EQUATES TO 5.7 GPH. ACCORDING TO THE CESSNA 152 PILOT'S OPERATING HANDBOOK, IF 70% ENGINE POWER IS USED AT A PRESSURE ALTITUDE OF 4000 FEET MSL WITH AN OUTSIDE AMBIENT AIR TEMPERATURE 20 DEG ABOVE STANDARD, THE AIRPLANE WOULD HAVE A TRUE AIRSPEED OF 102 KIAS AND AN AVERAGE FUEL CONSUMPTION OF 5.7 GALLONS PER HOUR.

## Aircraft

- Registration: [N93151](https://openairdocs.org/deregistered/N93151-1994-02-11), registration cancelled 1994-02-11, S/N 15285420 (OpenAirDocs)
- Reported make and model: CESSNA 152
- Registry model: [Cessna 152](https://openairdocs.org/model/cessna-152) (registry code 2071835) (OpenAirDocs)
- Category: Airplane
- Serial number: 15285420
- Engines: LYCOMING O-235-L2C 110 horsepower reciprocating
- Damage: Substantial damage
- Flight: Instructional, Part 91
- Operator: Stillwater Flight Center, Inc.
- Departed: GOK, GUTHRIE, OK
- Flight plan: VFR
- Airport: SWO, Stillwater Municipal

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 20; private; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; flight hours: 76 total, 71 in this make and model, 30 as pilot in command, 13 in the last 90 days, 11 in the last 30 days

## Weather

- Conditions: Visual (VMC), Dawn
- Wind: 170° at 6 knots
- Visibility: 8 statute miles
- Lowest ceiling: none
- Temperature: -0 °F, dew point -0 °F

## 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 19910912039759A](https://openairdocs.org/incident/19910912039759A), Sep 12, 1991: Cessna 152, Stillwater, OK, Substantial damage. Took off on crosscountry flight without full tanks. Ran out, overturned on landing.

## Other investigations on N93151 (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 ATL84LA159](https://openairdocs.org/ntsb/ATL84LA159), May 3, 1984: Cessna 152 (N93151), Boaz, AL, 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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