NTSB Identification: FTW87FA225.
The docket is stored on NTSB microfiche number 37450.
Accident occurred Sunday, September 27, 1987 in HOUSTON, TX
Probable Cause Approval Date: 05/26/1989
Aircraft: PIPER PA-28-235, registration: N9296W
Injuries: 1 Serious.

NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.

PLT EXECUTED AN EMERGENCY LANDING INTO TREES AFTER HE EXPERIENCED AN INFLIGHT FIRE AND ENG FAILURE SHORTLY AFTER T/O. THE LNDG IN THE TREES WAS EXECUTED AFTER THE PLT DECIDED THAT HE COULD NOT MAKE IT TO A CLEAR AREA. INVESTIGATION REVEALED THAT THE FIRE HAD INITIATED IN THE AREA OF THE MUFFLER AND CARBURETOR. EXAMINATION OF THE MUFFLER REVEALED THAT IT HAD WRINKLED AND CRACKED AS A RESULT OF SEVERE OXIDATION AND NORMAL HEAT EXPANSION. ANALYSIS OF THE EXHAUST DEPOSITS ON THE CRACK SURFACES AND THE EXTERIOR SKIN OF THE MUFFLER INDICATED THAT THE MUFFLER HAD BEEN CRACKED FOR SOME TIME PRIOR TO THE ACCIDENT. THE ACFT HAD RECEIVED AN ANNUAL 278 HRS PRIOR TO THE ACCIDENT, BUT HAD NOT BEEN INSPECTED FOR THE 3 YRS PRIOR TO THE LAST INSPECTION. THERE WERE NO RECORDS SHOWING WHERE THE MUFFLER HAD EVER BEEN OVERHAULED OR REPLACED DURING THE ACFT'S 2,650 HR HISTORY. MFGR RECOMMENDS MUFFLER REPLACEMENT EVERY 1,000 HRS.

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

EXHAUST SYSTEM,MUFFLER..FAILURE,PARTIAL

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

MAINTENANCE,REPLACEMENT..NOT PERFORMED..OTHER MAINTENANCE PERSONNEL

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

EXHAUST SYSTEM,MUFFLER..CRACKED

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

MAINTENANCE,100-HOUR INSPECTION..NOT PERFORMED..OTHER MAINTENANCE PERSONNEL


Contributing Factors

OBJECT..TREE(S)

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