The airplane initiated a forced landing after a partial loss of engine power during the takeoff initial climb. During the initial run-up the magneto check was not within acceptable limits; however, approximately 15 minutes later the pilot rechecked the magnetos and they were within acceptable limits. The pilot said he configured and checked the airplane prior to takeoff with 10 degrees of flaps and all gages “in the green.”
The pilot of the skydiver dropping aircraft reported that the engine lost power at the end of his descent from the 12,000-foot drop altitude as the airplane approached a landing 3-mile base leg. When the engine lost power, he checked that the fuel selector was in the “both” tanks position, the mixture was in the “rich” position, and checked individual magnetos; all with no effect.