Amateur-built Lancair accident near Sebring, Florida, March 28, 2018

The NTSB's narrative final · quoted from the NTSB record

The pilot made position reports over the airport's common traffic advisory frequency (CTAF) while inbound to the airport for landing. After landing and exiting the runway onto a taxiway, the pilot stopped and reconfigured the airplane and noticed a Boeing 737 (B737) south of his position with the left engine cowling missing. Neither he nor his front seat passenger perceived that either engine was running, and there were no barricades positioned around the airplane to indicate that engine runs were in progress. The accident pilot proceeded to taxi about 200 to 300 ft behind the B737, which was operating with both engines at 85% power. The accident airplane cartwheeled in the jet blast from the running engines and came to rest upright on grass, resulting in substantial damage. The pilot of another airplane and a groundcrew member monitoring the engine runs both attempted to warn the accident pilot over the CTAF of the running B737 engines, but were unsuccessful. The airport director reported that there was an "unwritten" policy in place that his approval was required before B737 engine maintenance runs. Although personnel from the maintenance facility that conducted the engine runs reported that they had received permission from airport management to do so, the airport director reported that neither he nor his staff approved the activity on the day of the accident. In addition, the installation of barricades to block the taxiway behind the running airplane would have prevented the accident by keeping other airplanes a safe distance from the B737.

The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.