SEA70IS044

NTSB incident investigation · Boeing 747 · Moses Lake, WA · May 24, 1970

Incident · No injuriesClosed
Date
May 24, 1970
Place
Moses Lake, WA · MOSES LAKE, WA
Injuries
6 uninjured
Damage
Minor damage
Phase of flight
Approach
Aircraft
N7470Boeing 747
Status
Completed · report September 11, 1970
Report
Brief approved by the director
Case key
121665

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

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
----------------------------------------------------------------------------------------------------------------------------
5-0013  70/5/24    MOSES LAKE,WASH     BOEING 747          CR-  0  0  6  INSTRUCTIONAL             AIRLINE TRANSPORT, AGE
        TIME - 1520                    N7470               PX-  0  0  0  DUAL                      51, 14728 TOTAL HOURS,
                                       DAMAGE-MINOR        OT-  0  0  0                            109 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        CLASSIFIED AS INCIDENT
        NAME OF AIRPORT - GRANT COUNTY
        DEPARTURE POINT             INTENDED DESTINATION         LAST ENROUTE STOP
          SEATTLE,WASH                LOCAL                        MOSES LAKE,WASH
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           AIRFRAME FAILURE: IN FLIGHT                              LANDING: FINAL APPROACH
        PROBABLE CAUSE(S)
           AIRFRAME - FLIGHT CONTROL SURFACES: FLAP ASSEMBLIES
           MISCELLANEOUS ACTS,CONDITIONS - FATIGUE FRACTURE
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - SEPARATION IN FLIGHT
        EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING ON AIRPORT
                                  SUSPECTED OR KNOWN AIRCRAFT DAMAGE
                                  UNUSUAL NOISE
        REMARKS- INBOARD FLAPTRACK ASSY FOR R INBOARD FLAP FAILED AND SEPARATED IN FLT. CONT APCH,LND OK.

Aircraft

Registration
N7470
Reported as
Boeing 747
Category
Airplane
Engine
turbo fan
Damage
Minor damage
Airport
Grant County

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.