Rockwell S-2R N8472V

Summary

On 1 September 2008 at about 19:00 local time, a Rockwell S-2R registered N8472V, operated by Lindeman, Rusty, was involved in an accident near Uvalde, Texas, 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

1 September 2008 at 19:00

Classification

Accident

Location

Uvalde, Texas, United States

Coordinates

29.3419, -99.7053

Aircraft

Rockwell S-2R

Registration

N8472V

Category

Airplane

Engines

1

Operator

Lindeman, Rusty

Operating rule

Part 137: Agricultural

Purpose of flight

Aerial Application

Phase of flight

Not recorded

Route

D'Hanis → D'Hanis

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

DFW08LA223

Nobody was injured.

A total loss of engine power due to the improper use of unauthorized replacement parts in the engine and repeated operation of the engine in an over-temperature condition.

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

Read the full NTSB narrative

The engine of the agricultural airplane lost power while it was maneuvering at low altitude. The airplane impacted thick vegetation and terrain, causing substantial damage to the right wing, nose and tail. A subsequent teardown examination of the engine showed little evidence that the engine was operating at the time of impact, but the ingestion of vegetation into the combustor and the torsional failure of the torsion shaft suggests that there was some rotation of the engine at the time of impact. The engine examination also revealed that several turbine rotors had damage and missing blade material due to short term operation of the engine at an over temperature condition. There was evidence that the rotors had been operating for several hours after the over temperature event that caused the stress rupture of the blades. Further, the examination showed that the first stage turbine rotor and the prop pitch control cam did not conform to Honeywell specifications and were not authorized replacement parts, and a previous weld repair on the engine combustor plenum did not conform to standard practices for weld repairs on aerospace parts.

Quoted verbatim from the NTSB record.