# NTSB NYC74AN067: Hiller Acft FH1100, N601PD, Freeport, NY, November 24, 1974

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: November 24, 1974
- Place: Freeport, NY · FREEPORT, NY
- Location: 40.6509° N, 73.5846° W: Placed by OpenAirDocs: center of Freeport, NY, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=40.6509&lon=-73.5846&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 1 fatal, 3 serious
- Status: Completed, report July 16, 1975
- Report: Brief approved by the director
- NTSB case key (mKey): 146479
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC74AN067
- Page: https://openairdocs.org/ntsb/NYC74AN067-146479

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-4332  74/11/24   FREEPORT,NY         HILLER ACFT FH1100  CR-  0  2  0  MISCELLANEOUS             COMMERCIAL, AGE 44, 3499
        TIME - 1702                    N601PD              PX-  1  1  0  POLICE PATROL             TOTAL HOURS, 2465 IN
                                       DAMAGE-DESTROYED    OT-  0  0  0                            TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          BETHPAGE,NY                 LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           AIRFRAME FAILURE: IN FLIGHT                              IN FLIGHT: POWER-ON DESCENT
        PROBABLE CAUSE(S)
           ROTORCRAFT - MISCELLANEOUS UNITS AND ASSEMBLIES: TAIL BOOMS/PYLONS/CONES
           MISCELLANEOUS ACTS,CONDITIONS - FATIGUE FRACTURE
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - SEPARATION IN FLIGHT
           MISCELLANEOUS ACTS,CONDITIONS - AIRCRAFT CAME TO REST IN WATER
        REMARKS- DURING LNDG APCH AFT TAIL BOOM SEPARATED.PREEXISTING FATIGUE CRACKS FOUND IN TAIL FIN SPAR CHANNEL
```

## Aircraft

- Registration: [N601PD](https://openairdocs.org/deregistered/N601PD-1975-05-08), registration cancelled 1975-05-08, S/N 80 (OpenAirDocs)
- Reported make and model: HILLER ACFT FH1100
- Registry model: [Fairchild Hiller FH-1100](https://openairdocs.org/model/fairchild-hiller-fh-1100) (registry code 3376502) (OpenAirDocs)
- Category: Helicopter
- Engines: turbo shaft
- 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 19741124044439A](https://openairdocs.org/incident/19741124044439A), Nov 24, 1974: Frchld FH1100, Freeport, NY, Destroyed, 1 fatal. During lndg apch aft tail boom separated. Preexisting fatigue cracks found in tail fin spar channel

## Other investigations on N601PD (2)

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 NYC72FHJ13](https://openairdocs.org/ntsb/NYC72FHJ13), Jan 29, 1972: Hiller FH1100 (N601PD), N Merrick, NY, substantial damage
- [NTSB NYC69F0324](https://openairdocs.org/ntsb/NYC69F0324), Feb 3, 1969: Hiller Acft FH1100 (N601PD), Island Park, NY, 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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