Beechcraft B36TC N587DL

Summary

On 25 July 1999 at about 15:46 local time, a Beechcraft B36TC registered N587DL was involved in an accident near Brookfield, Missouri, 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 July 1999 at 15:46

Classification

Accident

Location

Brookfield, Missouri, United States

Coordinates

39.7800, -93.0697

Aircraft

Beechcraft B36TC

Registration

N587DL

Category

Airplane

Engines

1

Operator

Not recorded

Operating rule

Part 91: General Aviation

Purpose of flight

Personal

Phase of flight

Not recorded

Route

Columbia → Omaha

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

CHI99LA253

Nobody was injured.

the total mechanical failure of the engine crankshaft due to fatigue. A factor was the ditch encountered on landing.

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

Read the full NTSB narrative

The pilot advised controllers that the aircraft engine was running rough and he was shutting it down. The pilot later stated that the engine began to shake violently and that he was concerned that the engine would become detached from the engine mount. The pilot executed a forced landing on a farm field. The aircraft had accumulated a total time of 62.5 hours and the new engine had accumulated 42 hours. External examination of the engine revealed three broken engine mounts. No other external evidence of damage was noted. The engine case was disassembled and the engine crankshaft was found to be broken at the connecting rod journal for the number one cylinder. A metallurgical analysis revealed striations typical of fatigue cracking. The fatigue origin was found to be 0.033 inches below the surface. No metallurgical anomalies were noted in a section made near the fracture origin.

Quoted verbatim from the NTSB record.