# NTSB SEA77FA012: Beech C35, N859M, Mckenna, WA, January 14, 1977

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: January 14, 1977
- Place: Mckenna, WA · MCKENNA, WA
- Location: 46.9340° N, 122.5515° W: Placed by OpenAirDocs: center of McKenna, WA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=46.9340&lon=-122.5515&mi=10
- Phase of flight: [Uncontrolled descent](https://openairdocs.org/ntsb-phases/650) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 3 fatal
- Status: Completed, report February 8, 1979
- Report: Brief approved by the director
- NTSB case key (mKey): 156944
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA77FA012
- Page: https://openairdocs.org/ntsb/SEA77FA012

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-4209  77/1/14    MCKENNA,WA          BEECH C35           CR-  1  0  0  NONCOMMERCIAL             PRIVATE, AGE 24, 224
        TIME - 2058                    N859M               PX-  2  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 123 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          TACOMA,WA                   RENO,NA
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           AIRFRAME FAILURE: IN FLIGHT                              IN FLIGHT: UNCONTROLLED DESCENT
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - ATTEMPTED OPERATION W/KNOWN DEFICIENCIES IN EQUIPMENT
           PILOT IN COMMAND - SPATIAL DISORIENTATION
           PILOT IN COMMAND - EXCEEDED DESIGNED STRESS LIMITS OF AIRCRAFT
           SYSTEMS - ANTI-ICING,DE-ICING SYSTEMS: PITOT ANTI-ICE SYSTEM
           MISCELLANEOUS ACTS,CONDITIONS - ERRATIC
        FACTOR(S)
           WEATHER - ICING CONDITIONS-INCLUDES SLEET,FREEZING RAIN,ETC.
           MISCELLANEOUS ACTS,CONDITIONS - AIRFRAME ICE
           MISCELLANEOUS ACTS,CONDITIONS - SEPARATION IN FLIGHT
        WEATHER BRIEFING - BRIEFED BY WEATHER BUREAU PERSONEL, BY PHONE
        WEATHER FORECAST - FORECAST SUBSTANTIALLY CORRECT
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          BROKEN                                                    2800
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     RAIN
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TEMPERATURE-F
          NONE                                                      44
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      IFR
        REMARKS- PITOT HEAT SWITCH DID NOT HAVE POSITIVE DETENT.PITOT HEAT DID NOT APPEAR TO FUNCTION PREVIOUS FLT
```

## Aircraft

- Registration: [N859M](https://openairdocs.org/deregistered/N859M-1977-07-18), registration cancelled 1977-07-18, S/N D-3122 (OpenAirDocs)
- Reported make and model: BEECH C35
- Registry model: [Beech C35](https://openairdocs.org/model/beech-c35) (registry code 1151508) (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 19770114041609A](https://openairdocs.org/incident/19770114041609A), Jan 14, 1977: Beech C35BEECH, WA, Destroyed, 2 fatal

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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