# NTSB LAX88LA013: Cessna 150L, N11939, Guam (Pacific Ocean), October 12, 1987

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Limited investigation · Final report
- Date: October 11, 1987, 23:43 local (Oct 12, 1987, 08:43 UTC)
- Place: Guam (Pacific Ocean)
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious, 1 uninjured
- Status: Completed, report April 24, 1989
- Report: Approved by Office Director
- NTSB case key (mKey): 25885
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX88LA013
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/25885/pdf
- Page: https://openairdocs.org/ntsb/LAX88LA013

## Sequence of events

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

- Loss of engine power, cruise
  - reason for occurrence undetermined (cause)
- Ditching, landing

## Analysis

THE PILOT EXPERIENCED A LOSS OF ENGINE POWER AT 1500 FEET MSL WHILE ON A FLIGHT IN THE MARIANAS ISLANDS FROM SAIPAN TO GUAM. THE AIRCRAFT WAS DITCHED IN OCEAN WATERS ABOUT 2 MILES NORTH OF GUAM AND WAS NOT RECOVERED. THE OCCUPANTS WERE RESCUED BY A U.S. NAVY HELICOPTER ABOUT 50 MINUTES AFTER THE DITCHING.

## Aircraft

- Registration: [N11939](https://openairdocs.org/deregistered/N11939-1989-03-09), registration cancelled 1989-03-09, S/N 15075717 (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: 15075761
- Airframe hours: 5079
- Engines: CONTINENTAL O-200A 100 horsepower reciprocating
- Damage: Destroyed
- Flight: Personal, Part 91
- Operator: Aviation Services
- Registered owner: Aviaton Service Ltd.
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, June 3, 1987, 33 hours before
- Departed: SAIPAN, PO
- Destination: GUM, AGANA, PO

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; airline transport; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: unknown, unknown; seat: left; flight hours: 6,000 total, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 120° at 12 knots
- Visibility: 7 statute miles
- Lowest ceiling: 24,000 ft broken
- Temperature: 79 °F, dew point 75 °F
- Altimeter: 29.00 inHg
- Observed at: PGUA

## 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 19871012066149A](https://openairdocs.org/incident/19871012066149A), Oct 12, 1987: Cessna 150L, Guam, Guam, Destroyed. Lost engine power. Reported throttle disconnect. Ditched in ocean and sank. Rescued by a navy helicopter.

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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