Mooney M20J N205MC

Summary

On 25 June 2013 at about 13:25 local time, a Mooney M20J registered N205MC was involved in an accident near El Reno, Oklahoma, 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

25 June 2013 at 13:25

Classification

Accident

Location

El Reno, Oklahoma, United States

Nearest airport

El Reno Municipal (RQO)

Coordinates

35.4728, -98.0058

Aircraft

Mooney M20J

Registration

N205MC

Category

Airplane

Engines

1

Operator

Not recorded

Operating rule

Part 91: General Aviation

Purpose of flight

Personal

Phase of flight

Not recorded

Route

Bethany → Bethany

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

CEN13LA370

Nobody was injured.

A loss of engine power, which resulted from the failure of the magneto assembly for reasons that could not be determined during postaccident examinations.

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

Read the full NTSB narrative

The pilot stated that the engine abruptly lost power while he was practicing instrument approaches under visual flight rules. His efforts to restore engine power were unsuccessful. The pilot subsequently executed a forced landing to the center median of a roadway. A postaccident examination revealed that the dual magneto assembly was not functioning properly. Although the magneto drive shaft operated during engine crankshaft rotation, the magneto points did not open as required. A teardown examination revealed that the magneto components were worn. In addition, the threaded inserts had lifted out of the mounting block. The magneto assembly was inspected less than 1 flight hour before the accident during an engine propeller strike inspection, and the magneto block, points, and cam were replaced at that time. The accident flight was the second flight since the inspection and maintenance work had been performed. Although the magneto points might have been misaligned due to the threaded insert lifting out of the mounting block, it is unlikely that such a discrepancy would have resulted in a loss of magneto function within such a short timeframe. The magneto failure caused the loss of engine power; however, the cause of the magneto failure could not be determined.

Quoted verbatim from the NTSB record.