# NTSB NYC75AN026: Enstrom F-28A, N29HW, S Casco, ME, August 31, 1974

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: August 31, 1974
- Place: S Casco, ME · S CASCO, ME
- Location: 43.9148° N, 70.5178° W: Placed by OpenAirDocs: center of South Casco, ME, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=43.9148&lon=-70.5178&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 1 fatal
- Status: Completed, report October 10, 1974
- Report: Brief approved by the director
- NTSB case key (mKey): 136846
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC75AN026
- Page: https://openairdocs.org/ntsb/NYC75AN026

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2756  74/8/31    S CASCO,ME          ENSTROM F-28A       CR-  1  0  0  NONCOMMERCIAL             PRIVATE, AGE 39, 818
        TIME - 1415                    N29HW               PX-  0  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 118 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          PORTLAND,ME                 LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           MISCELLANEOUS                                            IN FLIGHT: NORMAL CRUISE
           HARD LANDING                                             IN FLIGHT: AUTOROTATIVE DESCENT
        PROBABLE CAUSE(S)
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
           ROTORCRAFT - TRANSMISSION ROTOR DRIVE SYSTEM: CLUTCH ASSEMBLY
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPER ALIGNMENT/ADJUSTMENT
           PILOT IN COMMAND - FAILED TO MAINTAIN ADEQUATE ROTOR R.P.M.
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
           PILOT IN COMMAND - PHYSICAL IMPAIRMENT
           MISCELLANEOUS ACTS,CONDITIONS - ALCOHOLIC IMPAIRMENT OF EFFICIENCY AND JUDGMENT
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- IDLER YOKE OF BELT TENSIONING SYS FAILD.DRIVE TO TRANSMISSION WAS LOST.BLOOD ALCOHOL LVL 83MG PCT.
```

## Aircraft

- Registration: [N29HW](https://openairdocs.org/deregistered/N29HW-1999-03-12), registration cancelled 1999-03-12, S/N 151 (OpenAirDocs)
- Reported make and model: ENSTROM F-28A
- Registry model: [Enstrom F-28A](https://openairdocs.org/model/enstrom-f-28a) (registry code 3300406) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Destroyed

## 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 19740831031769A](https://openairdocs.org/incident/19740831031769A), Aug 31, 1974: Enstrm F28A, S Casco, ME, Substantial damage. Idler yoke of belt tensioning sys faild. Drive to transmission was lost. Blood alcohol lvl 83MG pct.

## Other investigations on N29HW (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 MIA74FLA12](https://openairdocs.org/ntsb/MIA74FLA12), Sep 1, 1973: Enstrom F-28A (N29HW), Jacksonville, FL, 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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