# NTSB NYC81IA048: Dehavilland DHC-6, N386EX, Unity, ME, May 12, 1981

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Closed
- Date: May 12, 1981
- Place: Unity, ME · UNITY, ME
- Location: 44.6186° N, 69.3445° W: Placed by OpenAirDocs: center of Unity, ME, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=44.6186&lon=-69.3445&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 8 uninjured
- Status: Completed, report August 19, 1981
- Report: Brief approved by the director
- NTSB case key (mKey): 125392
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC81IA048
- Page: https://openairdocs.org/ntsb/NYC81IA048

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
4-0015  81/5/12    UNITY,ME            DEHAVILLAND DHC-6   CR-  0  0  2  SCHED DOM PASSG SRV       AIRLINE TRANSPORT, AGE
        TIME - 0930                    N386EX              PX-  0  0  6                            30, 7041 TOTAL HOURS,
                                       DAMAGE-MINOR        OT-  0  0  0                            3629 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        CLASSIFIED AS INCIDENT
        OPERATOR - AIR NEW ENGLAND
        DEPARTURE POINT             INTENDED DESTINATION
          WATERVILLE,ME               BOSTON,MA
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           AIRFRAME FAILURE: IN FLIGHT                              IN FLIGHT: CLIMB TO CRUISE
        PROBABLE CAUSE(S)
           AIRFRAME - FLIGHT CONTROL SURFACES: ELEVATOR ASSEMBLY,ATTACHMENTS
           MISCELLANEOUS ACTS,CONDITIONS - MISSING
           MISCELLANEOUS ACTS,CONDITIONS - VIBRATION,EXCESSIVE
           MISCELLANEOUS ACTS,CONDITIONS - FATIGUE FRACTURE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
                                  AIRFRAME BUFFET
        REMARKS- SVR VIB,LOST EL CTL/TRIM.TRIM TAB BLT,AN23-15,MSG,EL TORQUE TUBE BLT,AN175-27A,FAILED FM FATIGUE.
```

## Aircraft

- Registration: N386EX (not matched to a registry record)
- Reported make and model: DEHAVILLAND DHC-6
- Category: Airplane
- Engines: turbo prop
- 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 19810512057909I](https://openairdocs.org/incident/19810512057909I), May 12, 1981: Dhav DHC6300, Unity, ME, Minor damage. Za zg zh in climb had intense vibration. Landed in farm field. Replaced center elevator hinge bolt p/n an 175-27A.

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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