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Casualties unknown

Engine Blower Bearing Failure Leads to Forced Landing in Trees (N637U)

Liverpool, TX, US

On October 29, 1992, a Grumman G-164 (registration N637U) operated by Byron J. Raney was involved in an aviation accident near Liverpool, TX. Investigators recorded the probable cause as: Failure of the engine blower bearings. 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

An agricultural airplane on a rye grass seeding flight lost engine power while banking at the top of a turn. The pilot maintained flying speed until just above treetops, then stalled and settled into trees.

Incident Overview

During a rye grass seeding operation, an agricultural airplane experienced a sudden loss of engine power as the pilot initiated a bank to reverse direction at the apex of a turn. The pilot responded by rolling the wings level and lowering the nose to preserve airspeed. This allowed the aircraft to continue flying until it was just above the tree canopy, at which point the pilot executed a stall and the airplane settled into the trees.

Engine Failure Cause

The subsequent investigation attributed the power loss to a failure of the engine blower bearings. No other contributing factors were identified in the report.

Probable cause

Failure of the engine blower bearings.
Engine failure

Frequently asked questions

What happened in the 29 Oct 1992 Grumman G-164 accident near Liverpool, TX?

An agricultural airplane on a rye grass seeding flight lost engine power while banking at the top of a turn. The pilot maintained flying speed until just above treetops, then stalled and settled into trees.

What aircraft was involved and where did it happen?

The accident on 29 Oct 1992 involved a Grumman G-164, registration N637U, operated by Byron J. Raney, at Liverpool, TX.

What was the probable cause of the accident?

Failure of the engine blower bearings.

More accident analyses

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001211X15881. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.