# NTSB SEA68A0041: Hughes 269B, N9426F, Imnaha, OR, November 2, 1967

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: November 2, 1967
- Place: Imnaha, OR · IMNAHA, OR
- Location: 45.5593° N, 116.8332° W: Placed by OpenAirDocs: center of Imnaha, OR, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=45.5593&lon=-116.8332&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 1 fatal
- Status: Completed, report May 14, 1968
- Report: Brief approved by the director
- NTSB case key (mKey): 113636
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA68A0041
- Page: https://openairdocs.org/ntsb/SEA68A0041

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
2-1106   67/11/2   IMNAHA,OREG         HUGHES 269B         CR-  1  0  0  COMMERCIAL                COMMERCIAL, AGE 60, 995
        TIME - 1643                    N9426F              PX-  0  0  0  AIR TAXI-PASSG            TOTAL HOURS, 677 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            NOT INSTRUMENT RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           COLLISION WITH GROUND/WATER: UNCONTROLLED                IN FLIGHT: UNCONTROLLED DESCENT
        PROBABLE CAUSE(S)
           POWERPLANT - MISCELLANEOUS: POWERPLANT FAILURE FOR UNDETERMINED REASONS
           PILOT IN COMMAND - IMPROPER OPERATION OF FLIGHT CONTROLS
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPER EMERGENCY PROCEDURES
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        MISSING AIRCRAFT - LATER RECOVERED
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- RECOVERY DATE-11/06/67.FAILED TO INITIATE AUTOROTATIVE DESCENT.
```

## Aircraft

- Registration: [N9426F](https://openairdocs.org/deregistered/N9426F-1971-10-28), registration cancelled 1971-10-28, S/N 0170 (OpenAirDocs)
- Reported make and model: HUGHES 269B
- Registry model: [Hughes 269B](https://openairdocs.org/model/hughes-269b) (registry code 4470502) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Destroyed

## Other investigations on N9426F (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 SEA66A0023](https://openairdocs.org/ntsb/SEA66A0023), Sep 23, 1965: Hughes 269B (N9426F), Enterprise, OR, 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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