Mooney M20K N3691H

Summary

On 28 November 1986 at about 23:35 local time, a Mooney M20K registered N3691H was involved in an accident near Watertown, Wisconsin, United States. 2 people were on board and nobody was injured. The aircraft was substantially damaged. No probable cause statement is available for this record.

Date

28 November 1986 at 23:35

Classification

Accident

Location

Watertown, Wisconsin, United States

Coordinates

43.1898, -88.7194

Aircraft

Mooney M20K

Registration

N3691H

Category

Airplane

Engines

1

Operator

Not recorded

Operating rule

Part 91: General Aviation

Purpose of flight

Instructional

Phase of flight

Not recorded

Route

Oshkosh → Rockford

Aircraft damage

Substantial

Weather

VMC

Light

Night/Dark

NTSB number

CHI87LA037

Nobody was injured.

The NTSB has not published a probable cause for this record. No probable cause statement is present in the source data.

Nothing about the cause is stated here that is not in the source record.

Read the full NTSB narrative

FOLLOWING AN ENGINE POWER LOSS DUE TO FATIGUE OF THE #1 CYLINDER, THE PLT FORCE LANDED THE ACFT ON A HIGHWAY. THE HIGHWAY WAS THE ONLY AVAILABLE LANDING AREA, ACCORDING TO THE PLT. ON LANDING ROLLOUT, THE PLT WAS FORCED TO SWERVE THE ACFT OFF THE PAVED SURFACE TO AVOID ON COMING VEHICULAR TRAFFIC. THE ACFT STRUCK TWO TRAFFIC SIGNS AND SUBSEQUENTLY WENT INTO A DITCH ALONG THE SIDE OF THE ROAD. ALTHOUGH THE SYLINDER APPEARED TO HAVE BEEN PROPERLY MANUFACTURED, ACCORDING TO TELEDYNE CONTINENTAL METALLURGICAL DATA THE ISOLATED LOCATION OF THE FATIGUE POINTS AND THE ABSENCE OF OTHER POSSIBLE CAUSES OF THE CYLINDER FAILURE INDICATE THAT A MANUFACTURING DEFECT EXISTED.

Quoted verbatim from the NTSB record.