# NTSB FTW81IA099: Aerospatial AS350D, N3607S, Gulf Of Mexico (Atlantic Ocean), June 2, 1981

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Closed
- Date: June 2, 1981
- Place: Gulf Of Mexico (Atlantic Ocean) · GULF OF MEXICO, AO
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report July 27, 1981
- Report: Brief approved by the director
- NTSB case key (mKey): 124839
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW81IA099
- Page: https://openairdocs.org/ntsb/FTW81IA099

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
5-0042   81/6/2    GULF OF MEXICO      AEROSPATIAL AS350D  CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 28, 2742
        TIME - 1250                    N3607S              PX-  0  0  2  AIR TAXI-PASSG            TOTAL HOURS, 1285 IN
                                       DAMAGE-MINOR        OT-  0  0  0                            TYPE, INSTRUMENT RATED.
        CLASSIFIED AS INCIDENT
        DEPARTURE POINT             INTENDED DESTINATION
          FREEPORT,TX                 GULF OF MEXICO
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           PROPELLER/ROTOR FAILURE: TAIL ROTOR                      IN FLIGHT: NORMAL CRUISE
        PROBABLE CAUSE(S)
           ROTORCRAFT - FLIGHT CONTROL SYSTEMS: TAIL ROTOR PITCH CONTROL SYSTEM
           MISCELLANEOUS ACTS,CONDITIONS - FATIGUE FRACTURE
        REMARKS- TAIL ROTOR PITCH CHANGE HORN,P/N 350A12-1368-01,FAILED.
```

## Aircraft

- Registration: N3607S (not matched to a registry record)
- Reported make and model: AEROSPATIAL AS350D
- Category: Helicopter
- Engines: turbo shaft
- Damage: Minor damage

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Incident 19810602058579I](https://openairdocs.org/incident/19810602058579I), Jun 2, 1981: Snias AS350C, LA, Minor damage. Aircraft vibrated in cruise. Landed ok tail rotor pitch change horn failed p/n 350A12 1368 01.

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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