# NTSB BFO86FA029: Cessna 150L, N11463, Upper Marlboro, MD, May 30, 1986

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Field investigation · Final report
- Date: May 30, 1986, 06:20 local (10:20 UTC)
- Place: Upper Marlboro, MD
- Coordinates: 38.809837, -76.74945 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=38.8098&lon=-76.7494&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 11208
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=BFO86FA029
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/11208/pdf
- Page: https://openairdocs.org/ntsb/BFO86FA029

## Sequence of events

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

- Loss of engine power(partial) - nonmechanical, cruise - normal
  - cooling system,cowling - blocked(total) (cause)
  - aircraft preflight - improper, pilot in command (cause)
  - checklist - not followed, pilot in command (cause)
  - installation - not corrected, pilot in command (cause)
  - fluid,oil - overtemperature
- Forced landing, descent - emergency
- Nose over, landing - flare/touchdown
  - terrain condition - rough/uneven
  - landing gear,nose gear assembly - failure,total
  - landing gear,nose gear assembly - overload

## Analysis

THE ACFT MADE A FORCED LANDING AFTER THE ENG BEGAN TO OVERHEAT DURING CRUISE FLT ABOUT 20 MINUTES AFTER DEPARTURE. THE PLT STATED THAT AS SOON AS HE SMELLED THE OIL HEATING UP HE KNEW WHAT THE PROBLEM WAS. HE HAD NOT REMOVED THE FOAM PLUGS FROM THE AIR INTAKES DURING HIS PREFLT. THESE PLUGS ARE USED BY SOME PLTS TO PREVENT BIRDS FROM NESTING IN THE AREA BEHIND THE PROP HUB. DURING THE FORCED LNDG THE NOSE GEAR WAS DAMAGED IN A FURROW AND THE ACFT NOSED OVER.

## Aircraft

- Registration: [N11463](https://openairdocs.org/deregistered/N11463-2012-06-04), registration cancelled 2012-06-04, S/N 15075441, 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: 15075441
- Airframe hours: 3921
- Engines: CONTINENTAL O-200 100 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Arlie D. Long, Jr.
- Airworthiness certificate: Standard, Utility; Standard, Normal
- Last inspection: Annual, May 18, 1985
- Departed: W18, LAURAL, MD
- Destination: PHF, NEWPORT NEWS, VA

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 58; private; airplane ratings: single-engine sea, single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 208 total, 191 in this make and model, 79 as pilot in command, 15 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 64 °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 19860530030499A](https://openairdocs.org/incident/19860530030499A), May 30, 1986: Cessna 150L, Upper Marlboro, MD, Substantial damage. Engine overheat. Hot oil smell. Knew he had failed to remove air intake plugs. Nosed over in furrows plowed failed

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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