# NTSB OAK70F0193: Beech 36, N7847R, Mammoth Lks, CA, December 11, 1969

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Closed
- Date: December 11, 1969
- Place: Mammoth Lks, CA · MAMMOTH LKS, CA
- Location: 37.6244° N, 118.9884° W: Placed by OpenAirDocs: center of Mammoth Lakes, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.6244&lon=-118.9884&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 2 serious, 3 minor
- Status: Completed, report May 15, 1970
- Report: Brief approved by the director
- NTSB case key (mKey): 149849
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK70F0193
- Page: https://openairdocs.org/ntsb/OAK70F0193

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-4181  69/12/11   MAMMOTH LKS,CALIF   BEECH 36            CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 35, 647
        TIME - 1050                    N7847R              PX-  0  2  2  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 139 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - MAMMOTH LAKES
        DEPARTURE POINT             INTENDED DESTINATION
          MAMMOTH LKS,CALIF           ANAHEIM,CALIF
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           STALL: SPIN                                              TAKEOFF: INITIAL CLIMB
           COLLISION WITH GROUND/WATER: CONTROLLED                  LANDING: OTHER
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - EXERCISED POOR JUDGMENT
           PILOT IN COMMAND - FAILED TO OBTAIN/MAINTAIN FLYING SPEED
           WEATHER - UNFAVORABLE WIND CONDITIONS
           MISCELLANEOUS - EVASIVE MANEUVER TO AVOID COLLISION
        WEATHER BRIEFING - NO RECORD OF BRIEFING RECEIVED
        WEATHER FORECAST - UNKNOWN/NOT REPORTED
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          OVERCAST                                                  5000
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TEMPERATURE-F
          NONE                                                      58
        WIND DIRECTION-DEGREES                                   WIND VELOCITY-KNOTS
          180                                                       25
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      NONE
         FIRE AFTER IMPACT
        REMARKS- WIND TURBULENT NEAR GRND,GUSTING 40K.PLT RECOVERED FROM SPIN,DIVED ACFT UNDER WIRES,CRASH LANDED.
```

## Aircraft

- Registration: [N7847R](https://openairdocs.org/deregistered/N7847R-1971-11-18), registration cancelled 1971-11-18, S/N E-131 (OpenAirDocs)
- Reported make and model: BEECH 36
- Registry model: [Beech 36](https://openairdocs.org/model/beech-36) (registry code 1151602) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Mammoth Lakes

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.