# NTSB LAX86LA062: Cessna 150K, N6347G, Honolulu, HI, December 11, 1985

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: December 11, 1985, 13:43 local (23:43 UTC)
- Place: Honolulu, HI
- Coordinates: 21.349113, -157.879196 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=21.3491&lon=-157.8792&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 25035
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX86LA062
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/25035/pdf
- Page: https://openairdocs.org/ntsb/LAX86LA062

## 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, climb - to cruise
  - engine assembly,other - loose (cause)
  - maintenance - improper, fbo personnel (cause)
  - remedial action - attempted, pilot in command
- Ditching, landing - flare/touchdown
  - terrain condition - none suitable (contributing factor)

## Analysis

THE PLT REPORTED THAT 5 MINS AFTER TAKEOFF THE ENG REDUCED TO IDLE PWR, & ATTEMPTS TO RESTORE FULL PWR WERE UNSUCCESSFUL. THE PLT DID STATE THAT BRIEF PERIODS OF PWR OBTAINED BY USING THE HAND PRIMER. THE ACFT WAS UNABLE TO MAINTAIN ALT & WAS DITCHED ABOUT 25 YDS FROM SHORE. THE ACFT WAS RECOVERED, & LATER EXAMINED BY FAA INSPECTORS. THE #3 CYLINDER INTAKE MANIFOLD WAS FOUND ATTACHED TO THE CYLINDER WITH A CASTLATED NUT & COTTER PIN, HOWEVER, IT WAS FREE TO MOVE ABOUT 1/8TH OF AN INCH AWAY FROM THE CYLINDER WITH MINOR HAND PRESSURE. NO OTHER MALFUNCTIONS OR FAILURES WERE REPORTED BY THE FAA INSPECTORS.

## Aircraft

- Registration: [N6347G](https://openairdocs.org/deregistered/N6347G-2013-04-29), registration cancelled 2013-04-29, S/N 15071847, built 1970 (OpenAirDocs)
- Reported make and model: CESSNA 150K
- Registry model: [Cessna 150K](https://openairdocs.org/model/cessna-150k) (registry code 2071822) (OpenAirDocs)
- Registry engine: [Continental 0-200 series](https://openairdocs.org/engine/continental-0-200-series) (registry code 17020, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 15071847
- Engines: CONTINENTAL O-200 100 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Valentine K. Mahuka
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, August 15, 1985
- Departed: HNL, HONOLULU, HI
- Destination: MKK, MOLOKAI, HI

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 58; private; airplane ratings: single-engine land; medical: class 3, expired; seat: left

## Weather

- Conditions: Visual (VMC), Day
- Wind: 260° at 7 knots
- Visibility: 20 statute miles
- Lowest ceiling: none
- Temperature: 81 °F, dew point 68 °F
- Altimeter: 29.00 inHg
- Observed at: HNL, 5 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 19851211076439A](https://openairdocs.org/incident/19851211076439A), Dec 11, 1985: Cessna 150K, Honolulu, HI, Substantial damage. Engine power loss after takeoff. Wing hit water, aircraft cartwheeled. Intake manifold loosely attached to cylinder.

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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