After the parachutists jumped, the airplane was descending through 9,000 feet msl, and the engine lost partial power. The pilot verified that carburetor heat was on, the cowl flaps were closed, the fuel selector was positioned to “Both,” and the mixture was rich. She continued descending and entered a left traffic pattern for the runway. The pilot initially judged her pattern distance based on the available engine power.

Read the NTSB report…