# NTSB SEA76AS029: Mooney M20C, N9746M, Mount Hood, OR, December 1, 1975

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: December 1, 1975
- Place: Mount Hood, OR · MOUNT HOOD, OR
- Location: 45.5339° N, 121.5662° W: Placed by OpenAirDocs: center of Mount Hood, OR, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=45.5339&lon=-121.5662&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 1 fatal
- Status: Completed, report January 22, 1976
- Report: Brief approved by the director
- NTSB case key (mKey): 151633
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA76AS029
- Page: https://openairdocs.org/ntsb/SEA76AS029

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3866   75/12/1   MOUNT HOOD,OR       MOONEY M20C         CR-  1  0  0  NONCOMMERCIAL             PRIVATE, AGE 32, 227
        TIME - 1224                    N9746M              PX-  0  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 115 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION         LAST ENROUTE STOP
          LONG BEACH,CA               HILLSBORO,OR                 REDDING,CA
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH GROUND/WATER: CONTROLLED                  IN FLIGHT: DESCENDING
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - CONTINUED VFR FLIGHT INTO ADVERSE WEATHER CONDITIONS
           PILOT IN COMMAND - BECAME LOST/DISORIENTED
        FACTOR(S)
           TERRAIN - HIGH OBSTRUCTIONS
           WEATHER - ICING CONDITIONS-INCLUDES SLEET,FREEZING RAIN,ETC.
           MISCELLANEOUS ACTS,CONDITIONS - AIRFRAME ICE
           WEATHER - LOW CEILING
           WEATHER - SNOW
        WEATHER BRIEFING - BRIEFED BY FLIGHT SERVICE PERSONNEL, BY PHONE
        WEATHER FORECAST - FORECAST SUBSTANTIALLY CORRECT
        MISSING AIRCRAFT - LATER RECOVERED
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          OBSCURATION                                              UNKNOWN/NOT REPORTED
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          ZERO                                                     SNOW
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TYPE OF WEATHER CONDITIONS
          UNKNOWN/NOT REPORTED                                     VFR
        TYPE OF FLIGHT PLAN
          NONE
        REMARKS- HIT OBSCURED MTN SLOPE ABT 53MI EAST OF DIR ROUTE TO DEST. REPTD ICING COND. RECOVERY DATE 12/5/75
```

## Aircraft

- Registration: [N9746M](https://openairdocs.org/deregistered/N9746M-2009-09-18), registration cancelled 2009-09-18, S/N 670040, built 1967 (OpenAirDocs)
- Reported make and model: MOONEY M20C
- Registry model: [Mooney M20C](https://openairdocs.org/model/mooney-m20c) (registry code 5870208) (OpenAirDocs)
- Registry engine: [Lycoming O&VO-360 series](https://openairdocs.org/engine/lycoming-o-vo-360-series) (registry code 41514, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- 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 19751201041489A](https://openairdocs.org/incident/19751201041489A), Dec 1, 1975: Mooney M20C, Mount Hood, OR, Destroyed. Hit obscured mtn slope abt 53MI east of dir route to dest. Reptd icing cond. Recovery date 12/5/75

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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