# NTSB FTW85LA147: Cessna 152, N6457L, Andrews, TX, March 4, 1985

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: March 4, 1985, 10:24 local (16:24 UTC)
- Place: Andrews, TX
- Coordinates: 32.320423, -102.539314 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=32.3204&lon=-102.5393&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 21696
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW85LA147
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/21696/pdf
- Page: https://openairdocs.org/ntsb/FTW85LA147

## 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, cruise - normal
  - engine assembly,valve,intake - failure,total (cause)
  - engine assembly,valve,intake - undetermined (cause)
- Forced landing, descent - emergency
- On ground/water encounter with terrain/water, landing - roll
  - terrain condition - soft (cause)
- Nose gear collapsed, landing - roll
  - landing gear,nose gear assembly - overload (cause)
- Nose over, landing - roll

## Analysis

ACFT EXPERIENCED A TOTAL PWR LOSS WHILE IN CRUISE FLT. DURING THE SUBSEQUENT FORCED LANDING ON A DIRT ROAD, THE NOSE GEAR COLLAPSED AND THE ACFT NOSED OVER. EXAMINATION OF THE ENG REVEALED SEVERE DAMAGE AS A RESULT OF A FAILURE OF THE #4 EXHAUST VALVE. DUE TO SEVERE PEENING OF THE VALVE FRACTURE SURFACES, THE EXACT MODE OF FAILURE OF THE VALVE COULD NOT BE DETERMINED.

## Aircraft

- Registration: [N6457L](https://openairdocs.org/deregistered/N6457L-2011-01-07), registration cancelled 2011-01-07, S/N 15284399, built 1980 (OpenAirDocs)
- Reported make and model: CESSNA 152
- Registry model: [Cessna 152](https://openairdocs.org/model/cessna-152) (registry code 2071835) (OpenAirDocs)
- Registry engine: [Lycoming O-235-L2C](https://openairdocs.org/engine/lycoming-o-235-l2c) (registry code 42035, 4 cycle) (OpenAirDocs)
- Category: Airplane
- Serial number: 15284399
- Airframe hours: 3432
- Engines: LYCOMING O-235-L2C 110 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Charles B. Smith
- Airworthiness certificate: Standard, Normal; Standard, Utility
- Last inspection: Annual, April 9, 1984, 135 hours before
- Departed: E01, MONAHANS, TX
- Destination: CDS, CHILDRESS, TX

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 27; commercial; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--no waivers/lim.; seat: left; flight hours: 322 total, 135 in this make and model, 223 as pilot in command, 28 in the last 90 days, 3 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 300° at 11 knots
- Visibility: 100 statute miles
- Lowest ceiling: none
- Temperature: 52 °F, dew point 16 °F
- Altimeter: 30.00 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 19850304063639A](https://openairdocs.org/incident/19850304063639A), Mar 4, 1985: Cessna 152, Andrews, TX, Substantial damage. Nosed over after forced landing on dirt road when engine lost power at cruise. Failure of number 4 exhaust valve.

## Other investigations on N6457L (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 LAX93LA253](https://openairdocs.org/ntsb/LAX93LA253), Jun 13, 1993: Cessna 152 (N6457L), Tracy, CA, substantial damage. Probable cause: THE FAILURE OF DUAL STUDENT TO MAINTAIN AN ADEQUATE AIRSPEED DURING THE GO AROUND INITIATION, AND, THE INADEQUATE SUPERVISION OF THE FLIGHT BY THE INSTRUCTOR.

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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