1 fatality

Fatal In-Flight Fire and Crash of an Experimental Vans RV-6A in Buckingham, Pennsylvania (N74MS)

Buckingham, PA, United States

On June 15, 2021, a VANS RV6 A (registration N74MS) was involved in an aviation accident near Buckingham, PA. One person was killed. Investigators recorded the probable cause as: An exhaust system leak that resulted in failure of the oil quick drain, a loss of oil lubrication, an in-flight fire, and the pilot’s subsequent loss of airplane control. This summary draws on records from NTSB; 12 related events involving the same aircraft type or operator are linked below.

SourcesNTSBPrimary reportUpdated 2026-08-03Data APIEditorial standards

On June 15, 2021, an experimental amateur-built Vans RV-6A, N74MS, crashed in Buckingham, Pennsylvania, after an in-flight fire. The pilot was fatally injured. The engine had a history of a previous accident and showed signs of internal failure.

Accident Overview and Flight History On June 15, 2021, at approximately 1031 eastern daylight time, an experimental amateur-built Vans RV-6A airplane, registration N74MS, was substantially damaged in an accident in Buckingham, Pennsylvania. The pilot was fatally injured. The flight was conducted as a personal flight under Title 14 Code of Federal Regulations Part 91. The pilot departed Doylestown Airport (DYL) in Pennsylvania at 0817, arriving at Sky Manor Airport (N40) in Pittstown, New Jersey, at 0827. After a 30-minute stop, the pilot departed N40 for South Jersey Regional Airport (VAY) in Mount Holly, New Jersey, arriving at 0913. One hour later, the pilot departed VAY to return to DYL. At 1020, the pilot declared an emergency over the common traffic advisory frequency for DYL, stating he was making a straight-in landing to runway 5. At 1021, the pilot reported an in-flight fire and that the aircraft was inbound to DYL. No further intelligible transmissions were made.

Contributing factors

Malfunction