# NTSB FTW93LA160: Cessna 152, N25051, Belmont, LA, May 20, 1993

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: May 19, 1993, 20:40 local (May 20, 1993, 01:40 UTC)
- Place: Belmont, LA
- Coordinates: 31.730085, -93.499908 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=31.7301&lon=-93.4999&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report October 25, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 18752
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW93LA160
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/18752/pdf
- Page: https://openairdocs.org/ntsb/FTW93LA160

## Probable cause

THE LOSS OF ENGINE POWER DUE TO A SHEARED ACCESSORY DRIVE PIN. A FACTOR WAS THE UNSUITABLE TERRAIN

## Sequence of events

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

- Loss of engine power(total) - mech failure/malf, climb
  - accessory drive assy - sheared
- Forced landing, descent - emergency
- On ground/water collision with object, landing - roll
  - object - fence
- Nose over, landing - roll
  - terrain condition - none suitable (contributing factor)

## Analysis

DURING A CLIMB, VFR, THE AIRPLANE LOST ENGINE POWER. THE PILOT EXECUTED A FORCED LANDING TO THE ONLY AVAILABLE AREA, WHICH HAD FENCES CROSSING THE LANDING ROLL AREA. THE AIRPLANE TOUCHED DOWN AND DURING THE LANDING ROLL IT STRUCK SEVERAL FENCES AND TRAVERSED SEVERAL ROADS PRIOR TO NOSING OVER TO THE INVERTED POSITION. AN EXAMINATION OF THE ENGINE REVEALED THAT THE ACCESSORY DRIVE PIN HAD SHEARED

## Factual narrative

On May 19, 1993, at 2040 central daylight time (CDT), a Cessna 152, N25051, was substantially damaged following a forced landing near Belmont, Louisiana. The instructor pilot and his rated student were not injured. The airplane was owned and operated by Northwestern State University, Natchitoches, Louisiana. Weather for the local instructional flight was visual meteorological conditions.

The pilot's reported to a Federal Aviation Administration inspector, verbally and in writing, that they heard a "loud bang." Following the loud bang the airplane lost power. They reported that the initial touchdown was "normal," however, during the landing roll the airplane traversed two roads and penetrated several fences prior to nosing over to the inverted position.

An examination of the engine revealed that the dowel alignment pin of the accessory drive section had sheared resulting in complete loss of all accessories.

The airplane was released to the owner.

## Aircraft

- Registration: N25051 (not matched to a registry record)
- Reported make and model: CESSNA 152
- Category: Airplane
- Serial number: 15280516
- Airframe hours: 4370
- Engines: LYCOMING O-235-L2C 110 horsepower reciprocating
- Damage: Substantial damage
- Flight: Instructional, Part 91
- Operator: Northwestern State Univ
- Registered owner: Northwestern State Univ
- Airworthiness certificate: Standard, Normal
- Last inspection: 100 hour, April 10, 1993, 29 hours before
- Departed: 3R8, NATCHITOCHES, LA
- Destination: GGG, LONGVIEW, TX
- Flight plan: VFR

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 26; flight instructor, commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: right; flight hours: 761 total, 467 in this make and model, 659 as pilot in command, 76 in the last 90 days, 18 in the last 30 days, 4 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 20° at 5 knots
- Visibility: 7 statute miles
- Lowest ceiling: none
- Temperature: 72 °F, dew point 64 °F
- Altimeter: 29.00 inHg

## 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 19930519014469A](https://openairdocs.org/incident/19930519014469A), May 19, 1993: Cessna 152, Belmont, LA, Substantial damage. Loud bang and power loss. Ran over two roads and two fences landing. Nosed over. Accessory drive dowel pin had sheared

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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