SEA66A0030

NTSB accident investigation · Brantly B-2 · Bigfork, MT · November 3, 1965

Accident · No injuriesClosed
Date
November 3, 1965
Place
Bigfork, MT · BIGFORK, MT
Injuries
1 uninjured
Damage
Destroyed
Phase of flight
Enroute
Aircraft
N5991XBrantly B-2
Status
Completed · report April 21, 1966
Report
Brief approved by the director
Case key
174978

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
----------------------------------------------------------------------------------------------------------------------------
2-0990   65/11/3 NR.BIGFORK MONT       BRANTLY B-2         CR-  0  0  1  MISCELLANEOUS             COMMERCIAL, FL.INSTR.,
        TIME - 1045                    N5991X              PX-  0  0  0  FERRY                     AGE 37, 15000 TOTAL
                                       DAMAGE-DESTROYED    OT-  0  0  0                            HOURS, 250 IN TYPE,
                                                                                                   INSTRUMENT RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           MISCELLANEOUS                                            STATIC: IDLING ROTORS
        PROBABLE CAUSE(S)
           POWERPLANT - MISCELLANEOUS: POWERPLANT FAILURE FOR UNDETERMINED REASONS
           TERRAIN - ROUGH/UNEVEN
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
                                  SUSPECTED MECHANICAL DISCREPANCY
         FIRE AFTER IMPACT
        REMARKS- SUSPECTED CARB ICE.LANDED NEAR CLIFF EDGE.PILOT GOT OUT.ACFT FELL OFF CLIFF.ENGINE INACCESSIBLE.

Aircraft

Registration
N5991X
Reported as
Brantly B-2
Category
Helicopter
Engine
reciprocating
Damage
Destroyed

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.