# NTSB LAX80FA036: Hughes 369D, N8354F, June Lakes, CA, January 20, 1980

- Type: NTSB accident investigation
- Classification: Case · Closed
- Date: January 20, 1980
- Place: June Lakes, CA · JUNE LAKES, CA
- Status: Completed
- Report: Brief approved by the director
- NTSB case key (mKey): 131770
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX80FA036
- Page: https://openairdocs.org/ntsb/LAX80FA036

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0188  80/1/20  NR.JUNE LAKES,CA      HUGHES 369D         CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 31, 5503
        TIME - 1135                    N8354F              PX-  0  0  3  AIR TAXI-PASSG            TOTAL HOURS, 1208 IN
                                       DAMAGE-DESTROYED    OT-  0  0  0                            TYPE, INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
         JUNE LAKES,CA                LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            TAKEOFF: INITIAL CLIMB
           ROLL OVER                                                LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: OTHER
           POWERPLANT - TURBINE ASSEMBLY: WHEEL TURBINE
           MISCELLANEOUS - FOREIGN MATERIAL AFFECTING NORMAL OPERATIONS
           MISCELLANEOUS ACTS,CONDITIONS - OVERHEATED
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
        FACTOR(S)
           WEATHER - HIGH DENSITY ALTITUDE
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        WEATHER BRIEFING - SELF-HELP,PILOT CHECKED WEATHER DATA
        WEATHER FORECAST - UNKNOWN/NOT REPORTED
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          CLEAR                                                    UNLIMITED
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TEMPERATURE-F
          NONE                                                      29
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      NONE
        REMARKS- HVY LEAD DEPOSITS,3RD STAGE.IMBALANCED FUEL MIX OF AVGAS & JP-4.CRASHED 8750MSL.
```

## Aircraft

- Registration: [N8354F](https://openairdocs.org/deregistered/N8354F-2017-02-04), registration cancelled 2017-02-04, S/N 170048D, built 1977 (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)
- Registry engine: [Allison 250 SER 400HP](https://openairdocs.org/engine/allison-250-ser-400hp) (registry code 03013, turbo-shaft) (OpenAirDocs)
- Category: Helicopter

## 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 19800120005779A](https://openairdocs.org/incident/19800120005779A), Jan 20, 1980: Hughes 369D, June Lake, CA, Destroyed. Third stage turbine failed on takeoff. Made hard autorotation landing. Rotors hit tail boom. Rolled over.

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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