# NTSB NYC91LA003: Cessna A150M, N7922U, Lincoln, RI, October 5, 1990

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: October 5, 1990, 10:00 local (14:00 UTC)
- Place: Lincoln, RI
- Location: 41.9171° N, 71.4505° W: Placed by OpenAirDocs: center of Town of Lincoln, RI, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=41.9171&lon=-71.4505&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report November 9, 1992
- Report: Approved by Office Director
- NTSB case key (mKey): 36818
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC91LA003
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/36818/pdf
- Page: https://openairdocs.org/ntsb/NYC91LA003

## Probable cause

ON GROUND COLLISION WITH A TREE WHILE MAKING A FORCED LANDING FOLLOWING LOSS OF ENGINE POWER DUE TO A FAILED EXHAUST VALVE.

## Sequence of events

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

- Loss of engine power(partial) - mech failure/malf, cruise
  - powerplant - failure,partial (cause)
  - engine assembly,valve,exhaust - failure,total (cause)
- Forced landing, descent - emergency
- On ground/water collision with object, landing - roll
  - object - tree(s)

## Analysis

THE PILOT WAS ON A SOLO CROSS COUNTRY FLIGHT WHEN THE ENGINE RPM STARTED TO DROP. THE PILOT WAS FORCED TO LAND ON A GOLF COURSE. WHEN HE TOUCHED DOWN THE AIRPLANE PORPOISED AND HIT A TREE. THE ENGINE TEAR DOWN REVEALED THE #3 EXHAUST VALVE HAD FAILED CAUSING EXTENSIVE INTERNAL DAMAGE TO THE ENGINE.

## Aircraft

- Registration: [N7922U](https://openairdocs.org/aircraft/N7922U), registered now, S/N 15077861, built 1976 (OpenAirDocs)
- Reported make and model: CESSNA A150M
- Registry model: [Cessna 150M](https://openairdocs.org/model/cessna-150m) (registry code 2071830) (OpenAirDocs)
- Registry engine: [Continental 0-200 series](https://openairdocs.org/engine/continental-0-200-series) (registry code 17020, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 1507786
- Engines: CONTINENTAL 0200A 100 horsepower reciprocating
- Damage: Substantial damage
- Flight: Instructional, Part 91
- Registered owner: Rcg Ventures
- Departed: PYM, PLYMOUTH, MA
- Destination: ORH, WORCESTER, MA
- Flight plan: VFR

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 21; student; medical: class 1, valid medical--no waivers/lim.; flight hours: 35 total, 24 in this make and model

## Weather

- Conditions: Visual (VMC), Day
- Wind: 270° at 25 knots, gusting 30
- Visibility: 30 statute miles
- Lowest ceiling: none
- Temperature: 70 °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 19901005044389A](https://openairdocs.org/incident/19901005044389A), Oct 5, 1990: Cessna 150M, Lincoln, RI, Substantial damage. Engine lost power,crash landed on golf course. Found stuck valve and oil loss from unsecured oil cap.

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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