CHI78FEC50

NTSB accident investigation · Sikorsky S55B · Pontiac, MI · September 2, 1978

Accident · No injuriesClosed
Date
September 2, 1978
Place
Pontiac, MI · PONTIAC, MI
Injuries
1 uninjured
Damage
Destroyed
Phase of flight
Maneuvering
Aircraft
N90885Sikorsky S55B
Status
Completed · report January 12, 1979
Report
Brief approved by the director
FAA report
19780902023729A
Case key
139384

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
----------------------------------------------------------------------------------------------------------------------------
3-3396   78/9/2    PONTIAC,MI          SIKORSKY S55B       CR-  0  0  1  COMMERCIAL                COMMERCIAL, FL.INSTR.,
        TIME - 1230                    N90885              PX-  0  0  0  CONSTRUCTION              AGE 49, 14614 TOTAL
                                       DAMAGE-DESTROYED    OT-  0  0  0                            HOURS, 625 IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          PONTIAC,MI                  LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           PROPELLER/ROTOR FAILURE: TAIL ROTOR                      IN FLIGHT: HOVERING
           ROLL OVER                                                LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           ROTORCRAFT - TRANSMISSION ROTOR DRIVE SYSTEM: TAIL ROTOR GEAR BOX
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
        FACTOR(S)
           TERRAIN - OTHER
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
                                  DIRECTIONAL CONTROL PROBLEM
                                  SUSPECTED MECHANICAL DISCREPANCY
        REMARKS- INPUT SHAFT,P/N S12-35-6072,NO TEETH REMAINED.STRUCK ROOF TOP MONITOR DURING EMERGCY LNDG.

Aircraft

Registration
N90885
Reported as
Sikorsky S55B
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.

FAA reports on this event · 1

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

Other investigations on N90885 · 1

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