DEN81FA062

NTSB accident investigation · Hughes 369D · Afton, WY · August 27, 1981

Accident · Minor injuriesClosed
Date
August 27, 1981
Place
Afton, WY · AFTON, WY
Injuries
2 minor
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N58256Hughes 369D
Status
Completed · report March 19, 1982
Report
Brief approved by the director
Case key
123626

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
----------------------------------------------------------------------------------------------------------------------------
3-3544  81/8/27  NR.AFTON,WY           HUGHES 369D         CR-  0  0  1  COMMERCIAL                COMMERCIAL, FL.INSTR.,
        TIME - 1300                    N58256              PX-  0  0  1  AIR TAXI-PASSG            AGE 34, 3182 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            145 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
         AFTON,WY                     LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            TAKEOFF: VERTICAL
           ROLL OVER                                                LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           POWERPLANT - COMPRESSOR ASSEMBLY: STATOR VANE
           MISCELLANEOUS ACTS,CONDITIONS - EXCESSIVE-WEAR/PLAY
           MISCELLANEOUS ACTS,CONDITIONS - FATIGUE FRACTURE
        FACTOR(S)
           WEATHER - HIGH DENSITY ALTITUDE
           TERRAIN - ROUGH/UNEVEN
        PARTIAL POWER LOSS - UNKNOWN/NOT REPORTED
        COMPLETE POWER LOSS - UNKNOWN/NOT REPORTED
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          SCATTERED                                                UNLIMITED
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TEMPERATURE-F
          NONE                                                      80
        WIND DIRECTION-DEGREES                                   WIND VELOCITY-KNOTS
          180                                                       10
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      NONE
        REMARKS- LWR 1/2 COMP CASE,PN 6877410,SVR EROSION OF ABRADABLE SEAL & A 3RD STAGE VANE,VANE FAIL FM FATIGUE

Aircraft

Registration
N58256
Reported as
Hughes 369D
Category
Helicopter
Engine
turbo shaft
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 N58256 · 1

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