ERA18TA236 · Cessna 182 L

The commercial pilot reported that during the airplane's initial climb for the local skydiving flight, the radio stopped working. He continued climbing to 7,500 ft to allow skydivers to depart the airplane, noted that the engine was running roughly at that time, then circled down over the airport. The pilot reported that his approach was "a little faster and higher than normal" and that he landed longer than usual but chose not to execute a go-around because of the rough-running engine. Surveillance video and witnesses indicated that the airplane touched down near the midpoint of the 1,760-ft-long runway with a quartering tailwind. The airplane's tires left over 500 ft of skid marks before the airplane overran the departure end of the runway, encountered a ditch, nosed over, and came to rest inverted 183 ft beyond the departure end of the runway.

Postaccident testing of the brakes showed that they were operational and did not reveal evidence of any preimpact mechanical malfunctions or failures that would have precluded normal operation. In addition, postaccident examination of the engine revealed no evidence of any preimpact mechanical malfunctions or failures that would have precluded normal engine operation, except that the alternator belt was found off of its pulleys. However, the airplane's battery still indicated a normal voltage, and the airplane's flaps were found extended, indicating that the airplane's electrical system was still functional throughout the landing attempt. Despite the condition of the alternator belt, the airplane's engine never ceased producing power. The pilot should have been able to perform a normal landing but instead performed a faster and higher approach than normal and failed to attain the proper touchdown point.

Verbatim NTSB analysis and probable cause from the NTSB dataset