NTSB Identification: LAX86LA351.
The docket is stored on NTSB microfiche number 32131.
Accident occurred Monday, September 15, 1986 in PORTERVILLE, CA
Aircraft: CESSNA 195, registration: N3879V
Injuries: 1 Uninjured.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

AFTER A NORMAL LANDING THE PILOT SAID HE BEGAN TO APPLY MODERATE BRAKE PRESSURE TO MAKE THE MID-FIELD TAXIWAY TURN OFF AND FELT WHAT HE DESCRIBED AS 'A LIGHT JERK IN THE LEFT GEAR' FOLLOWED BY A 'SNAPPING SOUND WHICH OCCURRED TWO OR THREE TIMES.' THE PILOT THEN SAID THE LEFT BRAKE FAILED COMPLETELY AND THE 'AIRCRAFT VEERED TO THE RIGHT AND ENTERED A GROUND LOOP.' EXAMINATION OF THE LEFT BRAKE REVEALED THAT THE LEFT BRAKE DISC DRIVE KEY RETAINING SCREW FAILED, WHICH ALLOWED THE KEY TO FLOAT LOOSE IN THE BRAKE HOUSING. THE MECHANIC WHO EXAMINED THE BRAKE SYSTEM STATED THAT THE LOOSE KEY 'BROKE OUT THE LOWER PART OF THE HOUSING ALLOWING THE BRAKE LINING TO FALL OUT.'

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

LANDING GEAR,NORMAL BRAKE SYSTEM..FAILURE,PARTIAL


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