# NTSB ANC81FA064: Hughes 369D, N11035, Tanacross, AK, June 19, 1981

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: June 19, 1981
- Place: Tanacross, AK · TANACROSS, AK
- Location: 63.3853° N, 143.3464° W: Placed by OpenAirDocs: center of Tanacross, AK, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=63.3853&lon=-143.3464&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor, 3 uninjured
- Status: Completed, report April 29, 1982
- Report: Brief approved by the director
- NTSB case key (mKey): 125365
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC81FA064
- Page: https://openairdocs.org/ntsb/ANC81FA064

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3574  81/6/19  NR.TANACROSS,AK       HUGHES 369D         CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 28, 3975
        TIME - 0840                    N11035              PX-  0  0  3  AIR TAXI-PASSG            TOTAL HOURS, 1310 IN
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            TYPE, INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION         LAST ENROUTE STOP
          DELTA CAMP,AK               RETURN                       STAR MTN,AK
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            TAKEOFF: VERTICAL
           COLLISION WITH GROUND/WATER: CONTROLLED                  LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           POWERPLANT - MISCELLANEOUS: POWERPLANT FAILURE FOR UNDETERMINED REASONS
        FACTOR(S)
           WEATHER - SNOW
           WEATHER - UNFAVORABLE WIND CONDITIONS
           WEATHER - HIGH DENSITY ALTITUDE
           TERRAIN - ROUGH/UNEVEN
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        WEATHER BRIEFING - NO RECORD OF BRIEFING RECEIVED
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          UNKNOWN/NOT REPORTED                                      9000
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          2 MILES OR LESS                                          SNOW
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TEMPERATURE-F
          BLOWING SNOW                                              30
        WIND DIRECTION-DEGREES                                   WIND VELOCITY-KNOTS
          270                                                       25
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          UNKNOWN/NOT REPORTED                                     NONE
        REMARKS- CRASHED AFT PINNACLE DEP FM 7200FT MTN RIDGE.COMPANY FLT PLN.
```

## Aircraft

- Registration: [N11035](https://openairdocs.org/deregistered/N11035-2018-01-02), registration cancelled 2018-01-02, S/N 900810D (OpenAirDocs)
- Reported make and model: HUGHES 369D
- Registry model: [Hughes Helicopters HUGHES 369D](https://openairdocs.org/model/hughes-helicopters-hughes-369d) (registry code 4470706) (OpenAirDocs)
- Registry engine: [Allison 250-C20 series](https://openairdocs.org/engine/allison-250-c20-series) (registry code 03020, turbo-prop) (OpenAirDocs)
- 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 19810619038629A](https://openairdocs.org/incident/19810619038629A), Jun 19, 1981: Hughes 369D, Tanacross, AK, Substantial damage. Engine lost power on takeoff hover. Tail rotor hit slope, then main rotors. Engine problem undetermined.

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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