ANC79DAG32

NTSB accident investigation · Navion NA-1 · Naknek, AK · September 23, 1978

Accident · No injuriesClosed
Date
September 23, 1978
Place
Naknek, AK · NAKNEK, AK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N4586KNavion NA-1
Status
Completed · report June 28, 1979
Report
Brief approved by the director
FAA report
19780923044649A
Case key
138925

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

NTSB brief

NTSB’s brief of the accident, as it was printed: the coded facts, with the probable cause and factors.

----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-4375  78/9/23    NAKNEK,AK           NAVION NA-1         CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 22, 185
        TIME - 0830                    N4586K              PX-  0  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 70 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - NAKNEK
        DEPARTURE POINT             INTENDED DESTINATION
          NAKNEK,AK                   KING SALMON,AK
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            TAKEOFF: INITIAL CLIMB
           HARD LANDING                                             IN FLIGHT: OTHER
        PROBABLE CAUSE(S)
           POWERPLANT - ENGINE STRUCTURE: VALVE ASSEMBLIES
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING ON AIRPORT/SEAPLANE BASE/HELIPT.
        REMARKS- NO 4 CYL EXHAUST VALVE GUIDE EXCESSIVELY WORN.

Aircraft

Registration
N4586K
Reported as
Navion NA-1
Category
Airplane
Engine
reciprocating
Damage
Substantial damage
Airport
Naknek

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.