LAX72AL071

NTSB accident investigation · Grumman G-21 · Long Beach, CA · December 12, 1971

Accident · Minor injuriesClosed
Date
December 12, 1971
Place
Long Beach, CA · LONG BEACH, CA
Injuries
1 minor, 3 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N11CSGrumman G-21
Status
Completed · report August 24, 1972
Report
Brief approved by the director
Case key
164826

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
----------------------------------------------------------------------------------------------------------------------------
3-4468  71/12/12   LONG BEACH,CALIF    GRUMMAN G-21        CR-  0  0  1  COMMERCIAL                AIRLINE TRANSPORT, AGE
        TIME - 1300                    N11CS               PX-  0  0  3  COMMUTER AIR CARRIER      54, 20450 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0  AIR TAXI-PASSG S-D        5300 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - LONG BEACH
        DEPARTURE POINT             INTENDED DESTINATION
          AVALON,CALIF                LONG BEACH,CALIF
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GROUND-WATER LOOP-SWERVE                                 LANDING: ROLL
           GEAR COLLAPSED                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           AIRFRAME - LANDING GEAR: BRAKING SYSTEM (NORMAL SYSTEM)
           MISCELLANEOUS ACTS,CONDITIONS - CORRODED/CORROSION
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - FATIGUE FRACTURE
        REMARKS- R BRAKE LOCKED,RUST ON BOTH DISCS. GR ASSY P/N 53480 HEAVILY CORRODED AND CRACKED.

Aircraft

Registration
N11CS
Reported as
Grumman G-21
Category
Airplane
Engine
reciprocating
Damage
Substantial damage
Airport
Long Beach

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 N11CS · 3

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