Casualties unknown

Forced Landing of Bellanca 17-30 Following Partial Power Loss (N4SH)

Fort Ord, CA, US

On June 1, 1991, a Bellanca 17-30 (registration N4SH) operated by Flame Aero Inc was involved in an aviation accident near Fort Ord, CA. Investigators recorded the probable cause as: PARTIAL LOSS OF ENGINE POWER FOR UNDETERMINED REASONS. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 2026-07-04Data APIEditorial standards

A Bellanca 17-30 experienced a partial loss of engine power during cruise climb while conducting a fuel-air mixture leaning procedure after takeoff, leading to a forced landing in the Pacific Ocean. The aircraft sank in shallow water. FAA examination found no mechanical failure; the cause of power loss remains undetermined.

Event Overview

A Bellanca 17-30 aircraft performed a forced landing in the Pacific Ocean after a partial loss of engine power during the cruise climb phase of flight. The power loss occurred shortly after takeoff while the pilot was executing a fuel-to-air mixture leaning procedure. The subsequent off-airport landing was made in coastal waters just outside the surf line.

Aircraft and Landing

The airplane came to rest in shallow water and subsequently sank. During the submersion, sand and salt water entered the fuselage and wings of the aircraft.

Post-Accident Examination

Following the event, the Federal Aviation Administration (FAA) conducted an examination of the engine. The inspection revealed no evidence of mechanical failure or malfunction. Despite the detailed examination, the reason for the partial loss of engine power could not be determined.

Conclusion

The investigation into the incident concluded without a definitive cause for the partial power loss. The aircraft was not recovered from the water.

Frequently asked questions

What happened in the 1 Jun 1991 Bellanca 17-30 accident near Fort Ord, CA?

A Bellanca 17-30 experienced a partial loss of engine power during cruise climb while conducting a fuel-air mixture leaning procedure after takeoff, leading to a forced landing in the Pacific Ocean. The aircraft sank in shallow water. FAA examination found no mechanical failure; the cause of power loss remains…

What aircraft was involved and where did it happen?

The accident on 1 Jun 1991 involved a Bellanca 17-30, registration N4SH, operated by Flame Aero Inc, at Fort Ord, CA.

What was the probable cause of the accident?

PARTIAL LOSS OF ENGINE POWER FOR UNDETERMINED REASONS.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001212X17292. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.