# NTSB FTW92LA176: Cessna 152, N4957P, Marietta, OK, July 3, 1992

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: July 3, 1992, 18:00 local (23:00 UTC)
- Place: Marietta, OK
- Coordinates: 33.930789, -97.120956 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=33.9308&lon=-97.1210&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 2 minor
- Status: Completed, report June 30, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 18529
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW92LA176
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/18529/pdf
- Page: https://openairdocs.org/ntsb/FTW92LA176

## Probable cause

ENGINE POWER LOSS FOR UNDETERMINED REASONS.

## Sequence of events

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

- Loss of engine power(partial) - nonmechanical, takeoff
  - reason for occurrence undetermined (cause)
- Overrun, takeoff - aborted
- Nose over, takeoff - aborted
  - terrain condition - ditch

## Analysis

A RIGHT MAGNETO DROP DURING THE BEFORE TAKEOFF ENGINE CHECK WAS 'UNACCEPTABLE' TO THE PILOT. THE PILOT INCREASED THE ENGINE POWER AND LEANED THE MIXTURE UNTIL HE OBTAINED AN 'ACCEPTABLE'  RIGHT MAGNETO DROP IN RPM. DURING THE TAKEOFF, THE RPM DROPPED TO 2,000 RPM AND THE PILOT ABORTED THE TAKEOFF. THE AIRPLANE RAN OFF THE DEPARTURE END OF THE RUNWAY INTO A GULLY AND CAME TO REST INVERTED. AN ENGINE TEST RUN REVEALED NO ANOMALIES.

## Aircraft

- Registration: [N4957P](https://openairdocs.org/deregistered/N4957P-2018-03-16), registration cancelled 2018-03-16, S/N 15284859, built 1981 (OpenAirDocs)
- Reported make and model: CESSNA 152
- Registry model: [Cessna 152](https://openairdocs.org/model/cessna-152) (registry code 2071835) (OpenAirDocs)
- Registry engine: [Lycoming 0-235 series](https://openairdocs.org/engine/lycoming-0-235-series) (registry code 41505, 4 cycle) (OpenAirDocs)
- Category: Airplane
- Serial number: 15284859
- Airframe hours: 6785
- Engines: LYCOMING O-235 110 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Yammine, Walid J.
- Registered owner: Yammine, Walid J.
- Airworthiness certificate: Standard, Utility
- Last inspection: 100 hour, June 4, 1992, 88 hours before
- Destination: OKC, OKLAHOMA, OK
- Airport: T40, Mcgehee Catfish, runway 35, 2,450 × 55 ft, grass/turf

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 21; private; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; seat: left; flight hours: 139 total, 135 in this make and model, 73 as pilot in command, 35 in the last 90 days, 33 in the last 30 days, 6 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 130° at 8 knots
- Visibility: 15 statute miles
- Lowest ceiling: none
- Temperature: 91 °F, dew point 73 °F
- Altimeter: 30.00 inHg
- Observed at: ADM, 20 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 19920703023679A](https://openairdocs.org/incident/19920703023679A), Jul 3, 1992: Cessna 152, Marietta, OK, Substantial damage. Reported power reduction on takeoff,aborted late. Ran into ditch. Engine checked normal post accident. Was downwind

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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