# NTSB ANC80FA052: Enstrom F-28-C, N544H, Talkeetna, AK, June 19, 1980

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: June 19, 1980
- Place: Talkeetna, AK · TALKEETNA, AK
- Location: 62.3239° N, 150.1094° W: Placed by OpenAirDocs: center of Talkeetna, AK, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=62.3239&lon=-150.1094&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report July 22, 1980
- Report: Brief approved by the director
- NTSB case key (mKey): 130583
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC80FA052
- Page: https://openairdocs.org/ntsb/ANC80FA052

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3166  80/6/19  NR.TALKEETNA,AK       ENSTROM F-28-C      CR-  0  0  1  MISCELLANEOUS             COMMERCIAL, AGE 26, 1047
        TIME - 1300                    N544H               PX-  0  0  2  OTHER PUBLIC              TOTAL HOURS, 93 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - TALKEETNA STATE
        DEPARTURE POINT             INTENDED DESTINATION
         TALKEETNA,AK                 LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           PROPELLER/ROTOR FAILURE: TAIL ROTOR                      IN FLIGHT: NORMAL CRUISE
           ROLL OVER                                                LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           ROTORCRAFT - TRANSMISSION ROTOR DRIVE SYSTEM: TAIL ROTOR GEAR BOX
           MISCELLANEOUS ACTS,CONDITIONS - LACK OF LUBRICATION-SPECIFIC PART,NOT SYSTEM
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
        FACTOR(S)
           TERRAIN - WET,SOFT GROUND
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
                                  DIRECTIONAL CONTROL PROBLEM
                                  SUSPECTED MECHANICAL DISCREPANCY
        REMARKS- OIL LEAKED OUT OF T/R GEARBOX SEAL.OUTPUT BEARING OF T/R GEAR BOX,PN 28-135000,FAILED.
```

## Aircraft

- Registration: [N544H](https://openairdocs.org/aircraft/N544H), registered now, S/N 335 (OpenAirDocs)
- Reported make and model: ENSTROM F-28-C
- Registry model: [Enstrom F-28C](https://openairdocs.org/model/enstrom-f-28c) (registry code 3300407) (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
- Airport: Talkeetna State

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.