OAK71IP012

NTSB incident investigation · Boeing 747 · San Francisco, CA · August 26, 1970

Incident · No injuriesClosed
Date
August 26, 1970
Place
San Francisco, CA · SAN FRANCISCO, CA
Injuries
200 uninjured
Damage
Minor damage
Phase of flight
Enroute
Aircraft
N93108Boeing 747
Status
Completed · report February 17, 1971
Report
Brief approved by the director
Case key
108063

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the incident.

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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
----------------------------------------------------------------------------------------------------------------------------
4-0051  70/8/26    SAN FRANCISCO,CAL   BOEING 747          CR-  0  0 18  SCHED DOM PASSG SRV       AIRLINE TRANSPORT, AGE
        TIME - 0855                    N93108              PX-  0  0182                            50, 21000 TOTAL HOURS,
                                       DAMAGE-MINOR        OT-  0  0  0                            135 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        CLASSIFIED AS INCIDENT
        OPERATOR - TRANS WORLD AIRLINES,INC.
        DEPARTURE POINT             INTENDED DESTINATION
          SAN FRANCISCO,CAL           JAMAICA,NY
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: CLIMB TO CRUISE
           FIRE OR EXPLOSION: IN FLIGHT                             IN FLIGHT: DESCENDING
        PROBABLE CAUSE(S)
           POWERPLANT - MISCELLANEOUS: COMPRESSOR STALLS
           MISCELLANEOUS ACTS,CONDITIONS - FATIGUE FRACTURE
           POWERPLANT - MISCELLANEOUS: OTHER
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPERLY SECURED
           MISCELLANEOUS ACTS,CONDITIONS - FIRE IN ENGINE
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: IMPROPER MAINTENANCE (MAINTENANCE PERSONNEL)
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-2 ENGINES
        EMERGENCY CIRCUMSTANCES - FORCED LANDING ON AIRPORT/SEAPLANE BASE/HELIPT.
        REMARKS- NR 2 ENG QUIT,MACHINE BOLT FAILED.NR 4 ENG IGNITED,OIL SPRAYED ACCESS SECTION.LOOSE COVER PLATE.

Aircraft

Registration
N93108
Reported as
Boeing 747
Category
Airplane
Engine
turbo fan
Damage
Minor 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 N93108 · 1

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