# NTSB FTW88LA081: Cessna 150L, N10842, Weatherford, TX, March 19, 1988

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: March 19, 1988, 16:40 local (22:40 UTC)
- Place: Weatherford, TX
- Coordinates: 32.749267, -97.770339 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=32.7493&lon=-97.7703&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 2 minor
- Status: Completed, report January 4, 1990
- Report: Approved by Office Director
- NTSB case key (mKey): 22626
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW88LA081
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/22626/pdf
- Page: https://openairdocs.org/ntsb/FTW88LA081

## 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, maneuvering
  - accessory drive assy,drive gear - separation (contributing factor)
  - accessory drive assy,drive gear - fatigue (contributing factor)
  - accessory drive assy,drive gear - undertorqued (cause)
  - maintenance,installation - improper, other maintenance personnel (cause)
- Forced landing, descent - emergency
- In flight collision with object, landing - aborted
  - object - wire,transmission (contributing factor)
  - proper touchdown point - misjudged, pilot in command (contributing factor)
- In flight collision with terrain/water, descent - uncontrolled

## Analysis

A FORCED LANDING WAS ATTEMPTED FOLLOWING A COMPLETE ENG FAILURE. THE PLT OVERSHOT THE INTENDED TOUCHDOWN PT AND PULLED THE ACFT OFF THE GRND IN AN ATTEMPT TO CLEAR A BUSY HWY. HOWEVER, THE ACFT STRUCK WIRES LOCATED NEXT TO THE ROAD. EVIDENCE INDICATED THAT THE ENG FAILURE WAS CAUSED BY THE FATIGUE FAILURE OF THE 4 BOLTS THAT ATTACHED THE CLUSTER GEAR TO THE CAMSHAFT. ONE OF THE BOLT HEADS WAS JAMMED BETWEEN THE CLUSTER GEAR AND THE CRANKSHAFT GEAR, WHICH SEIZED THE ENG. THE FATIGUE FAILURES APPEARED TO BE THE RESULT OF IMPROPER TORQUE APPLICATION DURING THE PREVIOUS INSTALLATION.

## Aircraft

- Registration: [N10842](https://openairdocs.org/deregistered/N10842-1989-03-17), registration cancelled 1989-03-17, S/N 15075079 (OpenAirDocs)
- Reported make and model: CESSNA 150L
- Registry model: [Cessna 150L](https://openairdocs.org/model/cessna-150l) (registry code 2071826) (OpenAirDocs)
- Category: Airplane
- Serial number: 15075079
- Airframe hours: 3905
- Engines: CONTINENTAL O-200-A 100 horsepower reciprocating
- Damage: Destroyed
- Flight: Instructional, Part 91
- Registered owner: Kelly J. Barnett
- Airworthiness certificate: Standard, Utility
- Last inspection: Annual, October 16, 1987, 70 hours before
- Departed: WEA

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 25; student; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: left; toxicology performed; flight hours: 25 total, 25 in this make and model, 8 as pilot in command, 15 in the last 90 days, 10 in the last 30 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 320° at 10 knots
- Visibility: 15 statute miles
- Lowest ceiling: none
- Temperature: 66 °F, dew point 27 °F
- Altimeter: 30.00 inHg
- Observed at: FTW, 25 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 19880319016699A](https://openairdocs.org/incident/19880319016699A), Mar 19, 1988: Cessna 150L, Weatherford, TX, Destroyed. Engine quit on local solo flight. Overshot open area and struck wires. Cluster gear bolts failed,improperly torqued

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.