# NTSB ANC67A0020: Hiller UH-12E, N5341V, Dillingham, AK, August 19, 1966

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: August 19, 1966
- Place: Dillingham, AK · DILLINGHAM, AK
- Location: 59.0397° N, 158.4575° W: Placed by OpenAirDocs: center of Dillingham, AK, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=59.0397&lon=-158.4575&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report April 10, 1967
- Report: Brief approved by the director
- NTSB case key (mKey): 122464
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC67A0020
- Page: https://openairdocs.org/ntsb/ANC67A0020

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
2-0726  66/8/19    DILLINGHAM ALAS     HILLER UH-12E       CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 28, 2300
        TIME - 1000                    N5341V              PX-  0  0  2  CTR PASSG-D               TOTAL HOURS, 638 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            TAKEOFF: INITIAL CLIMB
           HARD LANDING                                             LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
           PERSONNEL - OPERATIONAL SUPERVISORY PERSONNEL: FAILURE TO PROVIDE ADEQ.DIRECTIVES,MANUAL,EQUIPMENT
           ROTORCRAFT - TRANSMISSION ROTOR DRIVE SYSTEM: CLUTCH ASSEMBLY
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- CLUTCH SLIPPED-NOT MODIFIED ACCORDING TO HILLER SERVICE BULLETIN NO.2038 DATED FEB.7,1964.
```

## Aircraft

- Registration: [N5341V](https://openairdocs.org/deregistered/N5341V-1969-04-21), registration cancelled 1969-04-21, S/N 2013 (OpenAirDocs)
- Reported make and model: HILLER UH-12E
- Registry model: [Hiller UH-12E](https://openairdocs.org/model/hiller-uh-12e) (registry code 4360122) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage

## Other investigations on N5341V (3)

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 LAX68A0047](https://openairdocs.org/ntsb/LAX68A0047), Mar 8, 1967: Hiller UH-12E (N5341V), Peach Sprngs, AZ, substantial damage
- [NTSB SEA66A0013](https://openairdocs.org/ntsb/SEA66A0013), Aug 16, 1965: Hiller UH12E (N5341V), Crowley, OR, substantial damage
- [NTSB UNK64X2294](https://openairdocs.org/ntsb/UNK64X2294), Jun 14, 1964: Hiller 12E (N5341V), Jacob Lake, AZ, 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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