Cirrus SR22T N229TX

Summary

On 23 March 2012 at about 16:00 local time, a Cirrus SR22T registered N229TX, operated by PlaneSmart! Aviation, LLC, was involved in an accident near Addison, Texas, United States. 2 people were 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 2012 at 16:00

Classification

Accident

Location

Addison, Texas, United States

Nearest airport

Addison Airport (ADS)

Coordinates

32.9686, -96.8364

Aircraft

Cirrus SR22T

Registration

N229TX

Category

Airplane

Year built

2011

Engines

1

Operator

PlaneSmart! Aviation, LLC

Operating rule

Part 91: General Aviation

Purpose of flight

Personal

Phase of flight

Not recorded

Route

Addison → Addison

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

CEN12LA220

Nobody was injured.

Maintenance personnel’s improper maintenance, which resulted in the incorrect wiring of the No. 1 alternator and a subsequent electrical system fire during taxi. Contributing to the accident was the airplane manufacturer's inadequate maintenance documentation that did not depict updated electrical system wiring options.

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

Read the full NTSB narrative

The airplane experienced an electrical fire while taxiing to the departure runway. A postaccident examination revealed that a grounded shield wire was improperly attached to the alternator's auxiliary power terminal instead of the alternator's case-ground connection during recent maintenance. The mechanic who had recently removed the alternator stated that he did not identify the location of the wire harness leads during removal and that the manufacturer's documentation did not depict where the power shield wire should be attached on the alternator, so he decided to attach the shield wire to the auxiliary power terminal, which was not correct. The manufacturer's wiring manual did not depict the optional electrical system wiring configuration, which included the incorporation of the No. 1 alternator power shield wire. As a result of the accident, the airplane manufacturer updated the wiring manual to explicitly account for the shield wires and the unused auxiliary power terminal. Caution messages were added to the maintenance manuals warning mechanics that the airplane might be equipped with cable shielding and, if so, where to connect the shielding on the alternator.

Quoted verbatim from the NTSB record.