Beechcraft 50 N29Y

Summary

On 26 April 2019 at about 19:55 local time, a Beechcraft 50 registered N29Y was involved in an accident near Sheldon, Missouri, 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

26 April 2019 at 19:55

Classification

Accident

Location

Sheldon, Missouri, United States

Coordinates

37.6661, -94.3022

Aircraft

Beechcraft 50

Registration

N29Y

Category

Airplane

Year built

1957

Engines

2

Operator

Not recorded

Operating rule

Part 91: General Aviation

Purpose of flight

Personal

Phase of flight

Not recorded

Route

El Dorado Springs → Pittsburg

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

CEN19LA127

Nobody was injured.

A partial loss of engine power on both engines due to detonation for undetermined reasons.

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

Read the full NTSB narrative

The pilot was returning the multiengine airplane to his home base following an annual inspection other maintenance; the accident flight was the airplane's first flight since the work was performed. After climbing to about 3,000 ft mean sea level (msl), the pilot configured the airplane for cruise flight. The pilot heard the right engine emit "sputtering" noises and backfire. The pilot advanced the throttle of the left engine and then noticed a "large smoke trail" emit from the left engine about 1 minute after the right engine began sputtering. The pilot concluded that the two engines were no longer producing adequate power to remain airborne and performed a forced landing to a tilled dirt field, during which the nose landing gear collapsed, resulting in substantial damage. Signatures consistent with detonation were documented on the left engine Nos. 4 and 6 cylinder assemblies, and the right engine No. 2 cylinder assembly. Oil-covered particles were found in the oil screens from both engines; the source of these particles could not be determined. The reason for the detonation in both engines could not be determined based on the available evidence.

Quoted verbatim from the NTSB record.