# NTSB ANC89LA088: Piper PA-24, N9213P, Naked Island, AK, June 10, 1989

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: June 10, 1989, 13:15 local (21:15 UTC)
- Place: Naked Island, AK
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor, 1 uninjured
- Status: Completed, report July 9, 1990
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 5197
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC89LA088
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/5197/pdf
- Page: https://openairdocs.org/ntsb/ANC89LA088

## Probable cause

ENGINE FAILURE FOR AN UNKNOWN REASON.

## Sequence of events

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

- Loss of engine power, cruise - normal
  - reason for occurrence undetermined (cause)
- Forced landing, descent - emergency
- Ditching, landing - flare/touchdown
  - terrain condition - water

## Analysis

THE AIRPLANE WAS CRUISING AT 10,000 FT MSL WHEN THE PLT NOTICED A LOSS OF MANIFOLD PRESSURE. HE DESCENDED TO 5000 FT, WHERE THE TEMP WAS 38 DEG F, BUT THE MANIFOLD PRESSURE DID NOT GET ABOVE 20' HG. SUBSEQUENTLY, THE ENG STOPPED PRODUCINGPOWER & THE PLT WAS FORCED TO DITCH THE ACFT IN PRINCE WILLIAM SOUND NEAR NAKED ISLAND. THE PLT & PAX WERE RESCUED BY A NEARBY BOAT CREW & TREATED FOR HYPOTHERMIA. THE ACFT SANK IN DEEP WATER & WAS NOT RECOVERED.

## Aircraft

- Registration: [N9213P](https://openairdocs.org/deregistered/N9213P-1989-08-02), registration cancelled 1989-08-02, S/N 244709 (OpenAirDocs)
- Reported make and model: PIPER PA-24
- Registry model: [Piper PA-24-260](https://openairdocs.org/model/piper-pa-24-260) (registry code 7102406) (OpenAirDocs)
- Category: Airplane
- Serial number: PA24-260B
- Airframe hours: 850
- Engines: LYCOMING IO-540-D4A5 260 horsepower reciprocating
- Damage: Destroyed
- Flight: Personal, Part 91
- Operator: Jacob Kertz
- Registered owner: Florida Lakes Aviation
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, November 29, 1988, 100 hours before
- Departed: JNU, JUNEAU, AK
- Destination: ANC, ANCHORAGE, AK
- Flight plan: IFR

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 61; flight instructor, airline transport; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: left; flight hours: 8,000 total, 250 in this make and model, 7,000 as pilot in command, 55 in the last 90 days, 30 in the last 30 days

## Weather

- Conditions: Instrument (IMC), Day
- Visibility: 3 statute miles
- Lowest ceiling: 6,000 ft broken
- Temperature: 50 °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 19890610015089A](https://openairdocs.org/incident/19890610015089A), Jun 10, 1989: Piper PA24260, Naked Island, AK, Destroyed. Fuel pressure fluctuated, lost manifold pressure then engine quit. Ditched in gulf. Rescued. Aircraft sank.

## Other investigations on N9213P (2)

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.

- [NTSB MIA85LA257](https://openairdocs.org/ntsb/MIA85LA257), Sep 16, 1985: Piper PA-24-260 (N9213P), Leesburg, FL, substantial damage
- [NTSB CHI70D0229](https://openairdocs.org/ntsb/CHI70D0229), Sep 11, 1969: Piper PA-24 (N9213P), Onstead, MI, substantial damage

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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