NTSB Identification: NYC91LA079.
The docket is stored on NTSB microfiche number 45848.
Accident occurred Saturday, March 02, 1991 in PHILADELPHIA, PA
Probable Cause Approval Date: 01/22/1993
Aircraft: PIPER PA-28-161, registration: N2960B
Injuries: 1 Serious,1 Minor.

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

SHORTLY AFTER DEPARTURE AT ABOUT 300 TO 400 FEET AGL, THE AIRPLANE ENGINE STOPPED RUNNING. THE AIRPLANE CRASHED ON THE ROOF OF A BUILDING AND BURNED. AN INSPECTION OF THE ENGINE REVEALED A SPONGE-LIKE MATERIAL LODGED BENEATH AND IN THE SECONDARY VENTURI OF THE CARBURETOR. THE PRIMARY VENTURI OF THE CARBURETOR WAS MISSING. THE BRACKET AIR FILTER ASSEMBLY WAS NOT FOUND.

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

DUE TO FAILURE OF THE INDUCTION AIR CONTROL/AIR FILTER/SCREEN, WHICH BLOCKED AIRFLOW THROUGH THE CARBURETOR THROAT.

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