SEA74AS006

NTSB accident investigation · Boeing 737 · Missoula, MT · August 16, 1973

Accident · Serious injuriesClosed
Date
August 16, 1973
Place
Missoula, MT · MISSOULA, MT
Injuries
1 serious, 55 uninjured
Damage
No damage
Phase of flight
Enroute
Aircraft
N7381FBoeing 737
Status
Completed · report November 3, 1973
Report
Brief approved by the director
Case key
189821

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
----------------------------------------------------------------------------------------------------------------------------
1-0022  73/8/16    MISSOULA,MONT       BOEING 737          CR-  0  1  5  SCHED DOM PASSG SRV       AIRLINE TRANSPORT, AGE
        TIME - 0740                    N7381F              PX-  0  0 50                            52, 25586 TOTAL HOURS,
                                       DAMAGE-NONE         OT-  0  0  0                            UNK/NR IN TYPE,
                                                                                                   INSTRUMENT RATED.
        OPERATOR - FRONTIER AIRLINES,INC.
        DEPARTURE POINT             INTENDED DESTINATION
          MISSOULA,MONT               ST LOUIS,MO
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           MISCELLANEOUS                                            IN FLIGHT: NORMAL CRUISE
        PROBABLE CAUSE(S)
           SYSTEMS - FLIGHT CONTROL SYSTEMS: RUDDER AND RUDDER TAB CONTROL SYSTEM
        REMARKS- DEFECTIVE COIL IN B SYSTEM TRANSFER VALVE.

Aircraft

Registration
N7381F
Reported as
Boeing 737
Category
Airplane
Engine
turbo fan
Damage
No 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 N7381F · 2

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