# NTSB SEA81FYM07: Hughes 269C, N9643F, Pilot Rock, OR, August 31, 1980

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: August 31, 1980
- Place: Pilot Rock, OR · PILOT ROCK, OR
- Location: 45.4928° N, 118.8302° W: Placed by OpenAirDocs: center of Pilot Rock, OR, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=45.4928&lon=-118.8302&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report January 22, 1981
- Report: Brief approved by the director
- NTSB case key (mKey): 128029
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA81FYM07
- Page: https://openairdocs.org/ntsb/SEA81FYM07

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3374  80/8/31  NR.PILOT ROCK,OR      HUGHES 269C         CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 58, 613
        TIME - 1400                    N9643F              PX-  0  0  1  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 571 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          SUMMIT LAKE,OR              PENDLETON,OR
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           NOSE OVER/DOWN                                           LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
           ROTORCRAFT - TRANSMISSION ROTOR DRIVE SYSTEM: OTHER
           MISCELLANEOUS - FOREIGN MATERIAL AFFECTING NORMAL OPERATIONS
           MISCELLANEOUS ACTS,CONDITIONS - JAMMED
           PILOT IN COMMAND - FAILED TO MAINTAIN ADEQUATE ROTOR R.P.M.
        FACTOR(S)
           TERRAIN - WET,SOFT GROUND
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- RT DOOR CAME OPEN.SLEEPING BAG FELL OUT & JAMMED V-BELT & ENGINE FLYWHEEL.OTR EQUIP TIED TO L SIDE
```

## Aircraft

- Registration: [N9643F](https://openairdocs.org/deregistered/N9643F-2018-02-15), registration cancelled 2018-02-15, S/N 1200076, built 1972 (OpenAirDocs)
- Reported make and model: HUGHES 269C
- Registry model: [Hughes 269C](https://openairdocs.org/model/hughes-269c) (registry code 4470504) (OpenAirDocs)
- Registry engine: [Lycoming HIO-360 series](https://openairdocs.org/engine/lycoming-hio-360-series) (registry code 41524, reciprocating) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- 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 19800831057799A](https://openairdocs.org/incident/19800831057799A), Aug 31, 1980: Hughes 269C, Pilot Rock, OR, Substantial damage. Engine quit made emergency landing, rolled backwards on impact. Found sleeping bag, tied on outside caught v belts.

## Other investigations on N9643F (1)

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 DEN03FA090](https://openairdocs.org/ntsb/DEN03FA090), May 28, 2003: Hughes 269C (N9643F), Watkins, CO, destroyed, 1 fatal. Probable cause: failure of both pilots to initiate a timely recovery from a practice autorotation. A contributing factor was the instructor's inadequate supervision of the pilot receiving instruction.

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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