Engine Power Loss After Takeoff Leads to Runway Undershoot (N4312Z)

Event Sequence

Shortly after takeoff, when the aircraft was approximately 100 feet above ground level, the engine lost power. The pilot attempted to circle back to land on the closest runway, but the engine was developing insufficient power to maintain altitude during the turn. The aircraft subsequently touched down about 150 feet short of the runway threshold. The pilot did not level the wings prior to touchdown.

Investigation Findings

Investigation revealed that the flame tube in the muffler had disintegrated, and fragments from the disintegration blocked the exhaust system. The aircraft's annual inspection had been performed 30 flight hours prior to the mishap.