NTSB Identification: DEN88LA039.
The docket is stored on NTSB microfiche number 35608.
Accident occurred Saturday, December 19, 1987 in LAS CRUCES, NM
Probable Cause Approval Date: 02/14/1989
Aircraft: PIPER PA-38-112, registration: N23497
Injuries: 2 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.

WHILE PRACTICING CROSSWIND LANDINGS THE INSTRUCTOR STATED THAT THE STUDENT TOUCHED DOWN NORMALLY WITH APRX 5 KNOT CROSSWIND. UPON TOUCH DOWN, THE RIGHT MAIN LANDING GEAR SEPARATED FROM THE ACFT CAUSING SUBSTANTIAL DAMAGE. THERE WERE NO INJURIES AND NO FIRE. INVESTIGATION REVEALED THE RIGHT MAIN GEAR INBD RETENTION BOLT HAD FAILED CAUSING THE RIGHT MAIN GEAR ASSEMBLY TO SEPARATE FROM THE ACFT. METALLURGIST EXAMINATION OF THE BROKEN BOLT REVEALED EVIDENCE OF A PROGRESSIVE FAILURE. THE BOLT WAS PIPER PART NUMBER 402 742.

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

LANDING GEAR,MAIN GEAR ATTACHMENT..FATIGUE

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