Aero Commander S2R N5561X

Summary

On 23 March 1995 at about 14:15 local time, a Aero Commander S2R registered N5561X was involved in an accident near Gillett, Arkansas, United States. One person was on board and nobody was injured. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

23 March 1995 at 14:15

Classification

Accident

Location

Gillett, Arkansas, United States

Coordinates

34.1106, -91.3691

Aircraft

Aero Commander S2R

Registration

N5561X

Category

Airplane

Engines

1

Operator

Not recorded

Operating rule

Part 137: Agricultural

Purpose of flight

Aerial Application

Phase of flight

Not recorded

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

FTW95LA145

Nobody was injured.

THE ENGINE MAIN ROD BEARING SEIZED TO THE CRANKSHAFT DUE TO WORN MASTER ROD METAL PIECES BLOCKING THE OIL PASSAGES. A FACTOR WAS AN ENGINE OVERHAUL WAS NOT PERFORMED BY COMPANY MAINTENANCE PERSONNEL.

Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.

Read the full NTSB narrative

DURING AN AERIAL APPLICATION PASS THE ENGINE OIL PRESSURE DROPPED TO 40 PSI AND THE ENGINE LOST ALL POWER. THE AIRPLANE SLID INTO TREES DURING THE FORCED LANDING. AN ENGINE TEARDOWN REVEALED THAT THE ENGINE OIL PASSAGES WERE BLOCKED BY PIECES OF METAL WORN FROM THE MAIN ROD BEARING WHICH WAS SEIZED TO THE CRANKSHAFT. GEAR SPLINES WERE SEPARATED FROM THE CAM GEAR AND CAM GEAR DRIVE. THE CONDITION WAS DESCRIBED AS 'TYPICAL OF A HIGH TIME BEARING FAILURE.' THE ENGINE HAD 1,549 HOURS SINCE OVERHAUL. TBO WAS 1,200 HOURS.

Quoted verbatim from the NTSB record.