UNK64X2939

NTSB accident investigation · Bell 47G3B · Lake City, CO · July 20, 1964

Accident · No injuriesClosed
Date
July 20, 1964
Place
Lake City, CO · LAKE CITY, CO
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N73915Bell 47G3B
Status
Completed · report August 27, 1964
Report
Brief approved by the director
Case key
182565

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
----------------------------------------------------------------------------------------------------------------------------
2-0467  64/7/20  NR.LAKE CITY COLO     BELL 47G3B          CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 44, 2200
        TIME - 1200                    N73915              PX-  0  0  1  CTR PASSG-D               TOTAL HOURS, 800 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            TAKEOFF: INITIAL CLIMB
           HARD LANDING                                             LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
          PWR PLT-TURBO MALFUNCTN CAUSED BY HEAT EROSION.
        FACTOR(S)
           TERRAIN - ROUGH/UNEVEN
           MISCELLANEOUS ACTS,CONDITIONS - BINDING
           MISCELLANEOUS ACTS,CONDITIONS - OVERHEATED
           MISCELLANEOUS ACTS,CONDITIONS - WARPED
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND

Aircraft

Registration
N73915
Reported as
Bell 47G3B
Category
Helicopter
Engine
reciprocating
Damage
Substantial damage

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.

Other investigations on N73915 · 2

Matched to the same aircraft by N-number and date.