# NTSB OAK76AP057: Bell 206B, N7941S, Bishop, CA, June 22, 1976

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: June 22, 1976
- Place: Bishop, CA · BISHOP, CA
- Location: 37.3672° N, 118.3989° W: Placed by OpenAirDocs: center of Bishop, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.3672&lon=-118.3989&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 2 fatal, 2 serious
- Status: Completed, report November 15, 1976
- Report: Brief approved by the director
- NTSB case key (mKey): 155198
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK76AP057
- Page: https://openairdocs.org/ntsb/OAK76AP057

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3067  76/6/22  NR.BISHOP,CA          BELL 206B           CR-  0  1  0  COMMERCIAL                COMMERCIAL, AGE 43, 6500
        TIME - 1114                    N7941S              PX-  2  1  0  OTHER                     TOTAL HOURS, 400 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
         BISHOP,CA                    LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           COLLISION WITH GROUND/WATER: CONTROLLED                  LANDING: ROLL-ON/RUN-ON
        PROBABLE CAUSE(S)
           POWERPLANT - MISCELLANEOUS: POWERPLANT FAILURE FOR UNDETERMINED REASONS
           WEATHER - HIGH DENSITY ALTITUDE
           PILOT IN COMMAND - IMPROPER IN-FLIGHT DECISIONS OR PLANNING
        FACTOR(S)
           TERRAIN - ROUGH/UNEVEN
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        WEATHER BRIEFING - NO RECORD OF BRIEFING RECEIVED
        MISSING AIRCRAFT - LATER RECOVERED
        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                                                      73
        WIND DIRECTION-DEGREES                                   WIND VELOCITY-KNOTS
           10                                                       13
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      NONE
         FIRE AFTER IMPACT
        REMARKS- LOST PWR AT LOW ALT OVR MTN SLOPE, DENSITY ALT ABT 9000FT,ACFT HEAVY. RECOVERY DATE 6/23/76.
```

## Aircraft

- Registration: [N7941S](https://openairdocs.org/deregistered/N7941S-1976-11-22), registration cancelled 1976-11-22, S/N 228, built 1968 (OpenAirDocs)
- Reported make and model: BELL 206B
- Registry model: [Bell 206A](https://openairdocs.org/model/bell-206a) (registry code 1181508) (OpenAirDocs)
- Registry engine: [Allison 250 SER 400HP](https://openairdocs.org/engine/allison-250-ser-400hp) (registry code 03013, turbo-shaft) (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 19760622032649A](https://openairdocs.org/incident/19760622032649A), Jun 22, 1976: Bell 206B1, Bishop, CA, Destroyed, 2 fatal. Lost pwr at low alt ovr mtn slope, density alt abt 9000FT,acft heavy. Recovery date 6/23/76.

## Other investigations on N7941S (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 NYC73AN069](https://openairdocs.org/ntsb/NYC73AN069), Nov 20, 1972: Bell 206 (N7941S), Port Washngton, 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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