# NTSB ANC81DAD05: Hughes 369D, N8348F, Swan Lake, AK, August 15, 1981

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: August 15, 1981
- Place: Swan Lake, AK · SWAN LAKE, AK
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report October 20, 1981
- Report: Brief approved by the director
- NTSB case key (mKey): 124625
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC81DAD05
- Page: https://openairdocs.org/ntsb/ANC81DAD05

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1861  81/8/15  NR.SWAN LAKE,AK       HUGHES 369D         CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 38, 5561
        TIME - 1100                    N8348F              PX-  0  0  0  CONSTRUCTION              TOTAL HOURS, 952 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION         LAST ENROUTE STOP
         SWAN LAKE,AK                 RETURN                      UNKNOWN/NOT REPORTED
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           MISCELLANEOUS                                            IN FLIGHT: HOVERING
           COLLISION WITH GROUND/WATER: UNCONTROLLED                LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPERLY LOADED AIRCRAFT-WEIGHT-AND/OR C.G.
           SYSTEMS - OTHER SYSTEMS: OTHER
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - AIRCRAFT CAME TO REST IN WATER
        REMARKS- LIFTING LOG,STEEP SLOPE,NR LAKE.LOG DISLODGED,PULLED HEL DWN,UN ELEC RLS.INSUF TIME FOR MECH RLS.
```

## Aircraft

- Registration: [N8348F](https://openairdocs.org/aircraft/N8348F), registered now, S/N 1260051D (OpenAirDocs)
- Reported make and model: HUGHES 369D
- Registry model: [Hughes Helicopters HUGHES 369D](https://openairdocs.org/model/hughes-helicopters-hughes-369d) (registry code 4470706) (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 19810815059089A](https://openairdocs.org/incident/19810815059089A), Aug 15, 1981: Hughes 369D, Swan Lake, AK, Destroyed. Pilot tried to release sling load with electrical switch which failed. Pilot failed to use mechanical release.

## Other investigations on N8348F (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 CHI82DA185](https://openairdocs.org/ntsb/CHI82DA185), May 26, 1982: Hughes 369D (N8348F), Fairbury, IL, 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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