MKC76AK003

NTSB accident investigation · Sikorsky S-55B · Pine Ridge, SD · July 4, 1975

Accident · Minor injuriesClosed
Date
July 4, 1975
Place
Pine Ridge, SD · PINE RIDGE, SD
Injuries
1 minor, 3 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N111RSSikorsky S-55B
Status
Completed · report October 21, 1975
Report
Brief approved by the director
FAA report
19750704031429A
Case key
150521

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
----------------------------------------------------------------------------------------------------------------------------
3-3317   75/7/4    PINE RIDGE,SD       SIKORSKY S-55B      CR-  0  0  2  MISCELLANEOUS             COMMERCIAL, AGE 35, 3500
        TIME - 1925                    N111RS              PX-  0  0  2  OTHER PUBLIC              TOTAL HOURS, 400 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          PINE RIDGE,SD               LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           PROPELLER/ROTOR FAILURE: MAIN ROTOR                      IN FLIGHT: OTHER
           COLLISION WITH GROUND/WATER: UNCONTROLLED                LANDING: OTHER
        PROBABLE CAUSE(S)
           ROTORCRAFT - ROTOR ASSEMBLIES: MAIN ROTOR BLADES
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
           TERRAIN - ROUGH/UNEVEN
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - SEPARATION IN FLIGHT
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- PART FM MAIN RTR BLADE SEPARATED IN FLT AND NOT FOUND.PLT CRASH LND ON SIDE OF HILL,NO COLLECTIVE.

Aircraft

Registration
N111RS
Reported as
Sikorsky S-55B
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.

FAA reports on this event · 1

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