# NTSB ANC92LA157: Sikorsky S-58G, N822G, Port Alsworth, AK, September 5, 1992

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: September 4, 1992, 20:20 local (Sep 5, 1992, 04:20 UTC)
- Place: Port Alsworth, AK
- Coordinates: 60.200435, -154.280151 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=60.2004&lon=-154.2802&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report May 26, 1993
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 5799
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC92LA157
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/5799/pdf
- Page: https://openairdocs.org/ntsb/ANC92LA157

## Probable cause

INFLIGHT ENGINE COMPARTMENT FIRE AND POST LANDING FIRE OF UNDETERMINED ORIGIN.

## Sequence of events

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

- Fire, cruise - normal
  - powerplant - fire (cause)
- Forced landing, descent - emergency

## Analysis

THE S58 PILOT WAS ENROUTE TO A PART 133 PICKUP LOCATION REPORTED AN INDICATION OF FIRE WARNING LIGHT IN THE ENGINE COMPARTMENT FOLLOWED BY VISUAL FLAME BELOW THE RIGHT SIDE OF THE AIRCRAFT. AN IMMEDIATE AUTOROTATION WAS SUCCESSFUL. THE PILOT EVACUATED WITHOUT INJURY. THE FIRE APPEARED TO BE AVGAS ORIGIN AND CONSUMED THE ENTIRE AIRCRAFT WITHIN 2 MINUTES.

## Aircraft

- Registration: [N822G](https://openairdocs.org/deregistered/N822G-2013-07-01), registration cancelled 2013-07-01, S/N 58-1732, built 1964 (OpenAirDocs)
- Reported make and model: SIKORSKY S-58G
- Registry model: [Sikorsky S-58J](https://openairdocs.org/model/sikorsky-s-58j) (registry code 8141814) (OpenAirDocs)
- Registry engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999) (OpenAirDocs)
- Category: Helicopter
- Serial number: 58-1732
- Engines: WRIGHT 1820-84 1425 horsepower reciprocating
- Damage: Destroyed
- Fire: In-Flight
- Flight: Business, Part 133
- Operator: Wayne C. Alsworth, Sr., doing business as Rotor Air Salvage And Repair
- Registered owner: Wayne C. Alsworth, Sr.
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, August 26, 1992, 10 hours before
- Departed: SXQ, SOLDOTNA, AK
- Destination: Z30, PORT ALSWORTH, AK
- Flight plan: Company VFR

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 45; commercial; airplane ratings: single-engine land, multi-engine land, single-engine sea; instrument ratings: airplane; medical: class 2, valid medical--no waivers/lim.; seat: right; flight hours: 14,000 total, 300 in this make and model, 14,000 as pilot in command, 50 in the last 90 days, 20 in the last 30 days, 3 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 135° at 10 knots
- Lowest ceiling: 2,500 ft overcast

## 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 19920904035379A](https://openairdocs.org/incident/19920904035379A), Sep 4, 1992: Skrsky S58G, Port Alsworth, AK, Destroyed. Fire light came on in flight. Autorotated. Helicopter burned. Appearance of a fuel fire.

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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