# NTSB ANC81DA096: Hughes 369HS, N9171F, Ketchikan, AK, August 8, 1981

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: August 8, 1981
- Place: Ketchikan, AK · KETCHIKAN, AK
- Location: 55.3571° N, 131.6746° W: Placed by OpenAirDocs: center of Ketchikan, AK, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=55.3571&lon=-131.6746&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 4 uninjured
- Status: Completed, report March 2, 1982
- Report: Brief approved by the director
- NTSB case key (mKey): 124187
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC81DA096
- Page: https://openairdocs.org/ntsb/ANC81DA096

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3400   81/8/8  NR.KETCHIKAN,AK       HUGHES 369HS        CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 63, 12069
        TIME - 0800                    N9171F              PX-  0  0  3  AIR TAXI-PASSG            TOTAL HOURS, 1506 IN
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          KETCHKAN,AK                 LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            LANDING: FINAL APPROACH
           ROLL OVER                                                LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
           MISCELLANEOUS ACTS,CONDITIONS - WATER IN FUEL
           MISCELLANEOUS ACTS,CONDITIONS - FUEL CONTAMINATION-EXCLUSIVE OF WATER IN FUEL
        FACTOR(S)
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
           TERRAIN - HIGH OBSTRUCTIONS
           TERRAIN - OTHER
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- DEACTIVATE ENG OUT WRNG/AUTO-IGN BFR TKOF.TCHD  WN ON LOG NR GRVL BAR/TREES.FILTER BLKD W DEBRI.
```

## Aircraft

- Registration: N9171F (not matched to a registry record)
- Reported make and model: HUGHES 369HS
- Category: Helicopter
- Engines: turbo shaft
- Damage: Substantial damage

## 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 19810808049569A](https://openairdocs.org/incident/19810808049569A), Aug 8, 1981: Hughes 369, Ketchikan, AK, Substantial damage. Engine failure resulted in autorotation landing in river bed, striking log and crashing.

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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