# NTSB MIA86LA054: Cessna 150L, N7692G, Boca Raton, FL, January 2, 1986

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: January 2, 1986, 18:12 local (23:12 UTC)
- Place: Boca Raton, FL
- Coordinates: 26.339727, -80.080192 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=26.3397&lon=-80.0802&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): 31563
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA86LA054
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/31563/pdf
- Page: https://openairdocs.org/ntsb/MIA86LA054

## 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
  - engine assembly,valve,intake - jammed (cause)
- Forced landing, descent
- Nose gear collapsed, landing - roll

## Analysis

THE PLT STATED THAT WHILE ENROUTE TO FT. LAUDERDALE EXECUTIVE ARPT HIS ENG BEGAN TO RUN ROUGH. HE MADE A FORCED LANDING IN A FIELD & ON LANDING ROLLOUT, THE NOSE GEAR COLLAPSED. POST CRASH EXAMINATION OF THE ENG REVEALED THAT THE #1 INTAKE VALVE WAS STUCK IN THE OPEN POSITION CAUSING THE PARTIAL LOSS OF POWER EXPERIENCED BY THE PILOT.

## Aircraft

- Registration: [N7692G](https://openairdocs.org/deregistered/N7692G-2013-07-23), registration cancelled 2013-07-23, S/N 15074718, built 1973 (OpenAirDocs)
- Reported make and model: CESSNA 150L
- Registry model: [Cessna 150L](https://openairdocs.org/model/cessna-150l) (registry code 2071826) (OpenAirDocs)
- Registry engine: [Continental 0-200 series](https://openairdocs.org/engine/continental-0-200-series) (registry code 17020, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 15074718
- Airframe hours: 4000
- Engines: CONTINENTAL O-200A 100 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Robert Spencer
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, November 1, 1985
- Departed: FXE, FT. LAUDERDALE, FL
- Destination: LNA, LANTANA, FL

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 58; private; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; seat: left; flight hours: 250 total, 250 in this make and model, 21 in the last 90 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Night/dark
- Wind: 160° at 3 knots
- Visibility: 7 statute miles
- Lowest ceiling: none
- Temperature: 72 °F, dew point 68 °F
- Altimeter: 30.00 inHg
- Observed at: FLL, 10 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 19860102012669A](https://openairdocs.org/incident/19860102012669A), Jan 2, 1986: Cessna 150L, Boca Raton, FL, Substantial damage. The nose gear collapsed after a landing in a muddy field due to partial power loss. An intake valve was stuck open.

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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