Ayres S2R N4007Y

Summary

On 5 June 1998 at about 12:30 local time, a Ayres S2R registered N4007Y was involved in an accident near Watson, 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

5 June 1998 at 12:30

Classification

Accident

Location

Watson, Arkansas, United States

Coordinates

33.8894, -91.2497

Aircraft

Ayres S2R

Registration

N4007Y

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

FTW98LA259

Nobody was injured.

The partial loss of engine power due to the disconnection of the propeller governor control as a result of the stripped threads on the propeller governor control push-pull rod. A factor was the lack of suitable terrain for the forced landing.

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

Read the full NTSB narrative

While applying herbicide to a rice field, during the pull up at the end of a spray pass, the agricultural airplane's engine lost power. During the ensuing forced landing, the airplane touched down in a field and rolled into a hedgerow of trees. Examination of the engine by a mechanic revealed a discontinuity in the propeller governor control. The threads on the push-pull rod which retain the rod end that bolts to the propeller governor were stripped, and the rod end had separated from the rod. According to the mechanic, the separation of the rod end probably resulted in the reported loss of engine power, since the governor is 'spring loaded' to a high pitch (low rpm) setting. No other discrepancies with the engine were noted, and it was placed on a test stand and ran 'with no problems.'

Quoted verbatim from the NTSB record.