# NTSB SEA69A0042: Aero Cmdr 720, N8431C, Klamath Rvr, CA, January 18, 1969

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: January 18, 1969
- Place: Klamath Rvr, CA · KLAMATH RVR, CA
- Location: 41.8612° N, 122.8256° W: Placed by OpenAirDocs: center of Klamath River, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=41.8612&lon=-122.8256&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 1 fatal
- Status: Completed, report December 2, 1969
- Report: Brief approved by the director
- NTSB case key (mKey): 191259
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA69A0042
- Page: https://openairdocs.org/ntsb/SEA69A0042

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2493  69/1/18  NR.KLAMATH RVR,CALIF  AERO CMDR 720       CR-  1  0  0  NONCOMMERCIAL             PRIVATE, AGE 36, 695
        TIME - 1805                    N8431C              PX-  0  0  0  BUSINESS                  TOTAL HOURS, 154 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - EAGLE NEST BAR
        DEPARTURE POINT             INTENDED DESTINATION
          FRESNO,CALIF                EUGENE,OREGON
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           COLLISION WITH GROUND/WATER: UNCONTROLLED                IN FLIGHT: UNCONTROLLED DESCENT
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - ATTEMPTED OPERATION W/KNOWN DEFICIENCIES IN EQUIPMENT
           PILOT IN COMMAND - IMPROPER OPERATION OF POWERPLANT & POWERPLANT CONTROLS
           MISCELLANEOUS ACTS,CONDITIONS - ANTI-ICING/DEICING EQUIPMENT-IMPROPER OPERATION OF/OR FAILED TO USE
           MISCELLANEOUS ACTS,CONDITIONS - ICE-CARBURETOR
           MISCELLANEOUS ACTS,CONDITIONS - AIRFRAME ICE
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPER EMERGENCY PROCEDURES
        FACTOR(S)
           WEATHER - CONDITIONS CONDUCIVE TO CARB./INDUCTION SYSTEM ICING
           WEATHER - ICING CONDITIONS-INCLUDES SLEET,FREEZING RAIN,ETC.
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        WEATHER BRIEFING - BRIEFED BY FLIGHT SERVICE PERSONNEL, IN PERSON
        WEATHER FORECAST - FORECAST SUBSTANTIALLY CORRECT
        MISSING AIRCRAFT - LATER RECOVERED
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          OBSCURATION                                               800
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          2 MILES OR LESS                                           RAIN, SNOW
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TEMPERATURE-F
          NONE                                                      34
        WIND DIRECTION-DEGREES                                   WIND VELOCITY-KNOTS
          170                                                       6
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          IFR                                                      IFR
        REMARKS- RECOVERY DATE 1/19/69.ACFT NOT FULLY EQUIPPED FOR OPNS ICNG CDTNS.PWR FAILURE ABV S/E CEILG OF ACF
```

## Aircraft

- Registration: [N8431C](https://openairdocs.org/deregistered/N8431C-1970-06-30), registration cancelled 1970-06-30, S/N 720-760-10 (OpenAirDocs)
- Reported make and model: AERO CMDR 720
- Registry model: [Aero Commander 720](https://openairdocs.org/model/aero-commander-720) (registry code 0141802) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Destroyed
- Airport: Eagle Nest Bar

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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