Casualties unknown

Engine Silence Precedes Crash Near San Luis Obispo (N6301M)

Port San Luis, CA, US

On May 6, 1989, a Cessna 152 (registration N6301M) operated by Cal-coast Flyers, Inc. was involved in an aviation accident near Port San Luis, CA. Investigators recorded the probable cause as: PILOT FAILED TO EXECUTE A 180 DEGREE TURN AND INADVERTENTLY ENTERED INTO INSTRUMENT METEOROLOGICAL CONDITIONS. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive; 8 related events involving the same aircraft type or operator are linked below.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 2026-06-10Data APIEditorial standards

After departing San Luis Obispo Airport for Santa Barbara, the airplane's engine was heard to stop abruptly by ground witnesses. Wreckage was found hours later on sloping terrain; examination revealed no component failures.

Accident Overview

The flight departed San Luis Obispo Airport (SBP) en route to Santa Barbara. Weather conditions at SBP were visual flight rules (VFR), but fog was present along the coastal area.

Sequence of Events

Approximately nine minutes after departure, ground witnesses near the crash site heard the airplane's engine, followed by an abrupt cessation of engine sound. Subsequently, a Port San Luis Harbor Patrol officer detected an emergency locator transmitter (ELT) signal and initiated a search. The wreckage was located about four hours after the search began.

Wreckage Examination

Ground scars and examination of the wreckage indicated that the airplane struck upward-sloping terrain in a wings-level, nose-level attitude. A detailed examination found no evidence of any airplane component malfunctions or failures.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001213X28333. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.