NTSB Identification: NYC84LA223.
The docket is stored on NTSB microfiche number 26550.
Accident occurred Monday, June 25, 1984 in MARLBORO, NJ
Aircraft: PIPER PA-28-140, registration: N40921
Injuries: 1 Minor,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.

ON INITIAL CLIMB AFTER TAKEOFF, PLT NOTED A LOSS OF CLIMB PERFORMANCE, EXECUTED STEEP 180 DEGREE TURN TO AVOID HIGH VOLTAGE LINES ON RISING TERRAIN AHEAD. THIS MANEUVER, COUPLED WITH REDUCED POWER RESULTED IN AN AIRSPEED DECREASE TO NEAR STALL SPEED. PLT LOWERED THE NOSE TO PREVENT STALL, COLLIDED WITH TREE TOPS AND LOST FLYING SPEED. PLT MANAGED TO KEEP ACFT UPRIGHT DURING ENSUING MUSH INTO OPEN FIELD BUT GEAR COLLAPSED ON TOUCHDOWN DUE TO HIGH DESCENT RATE. INVESTIGATION REVEALED INNER FLAME TUBE IN MUFFLER HAD DISLODGED, PARTIALLY BLOCKING EXHAUST OUTLET AND RESULTING IN EXCESSIVE ENGINE BACK PRESSURE.

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

EXHAUST SYSTEM..BLOCKED(PARTIAL)


Contributing Factors

AIRCRAFT HANDLING..NOT POSSIBLE..PILOT IN COMMAND


Contributing Factors

TERRAIN CONDITION..RISING



Contributing Factors

TERRAIN CONDITION..HIGH OBSTRUCTION(S)



Contributing Factors

AIRCRAFT PERFORMANCE,CLIMB CAPABILITY..DETERIORATED


Contributing Factors

OBJECT..TREE(S)

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