DEN81FA035

NTSB accident investigation · Bell 206B · Evanston, WY · May 18, 1981

Accident · FatalClosed
Date
May 18, 1981
Place
Evanston, WY · EVANSTON, WY
Injuries
1 fatal, 2 serious, 1 minor
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N39101Bell 206B
Status
Completed · report March 18, 1982
Report
Brief approved by the director
FAA report
19810518026689A
Case key
125362

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
----------------------------------------------------------------------------------------------------------------------------
3-3543  81/5/18  NR.EVANSTON,WY        BELL 206B           CR-  0  1  0  COMMERCIAL                COMMERCIAL, AGE 35, 5580
        TIME - 1715                    N39101              PX-  1  1  1  AIR TAXI-PASSG            TOTAL HOURS, 1000 IN
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
         EVANSTON,WY                  LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            TAKEOFF: INITIAL CLIMB
           ROLL OVER                                                LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           PERSONNEL - PRODUCTION-DESIGN-PERSONNEL: INCORRECT FACTORY INSTALLATION
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
           POWERPLANT - FUEL SYSTEM: OTHER
           MISCELLANEOUS ACTS,CONDITIONS - UNDER TORQUED
           MISCELLANEOUS ACTS,CONDITIONS - LEAK/LEAKAGE
        FACTOR(S)
           WEATHER - HIGH DENSITY ALTITUDE
           TERRAIN - ROUGH/UNEVEN
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          CLEAR                                                    UNLIMITED
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TEMPERATURE-F
          NONE                                                      55
        WIND DIRECTION-DEGREES                                   WIND VELOCITY-KNOTS
          140                                                       10
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      NONE
        REMARKS- AIR LEAK AT LOOSE B-NUT ON HOSE ASSY TO GOV ACCUMULATOR,PN 6886430.WND GSTG 15KTS.D/A APRX 8500FT.

Aircraft

Registration
N39101
Reported as
Bell 206B
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.

FAA reports on this event · 1

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