Cessna 210K N1162M

Summary

On 30 October 1999 at about 23:00 local time, a Cessna 210K registered N1162M was involved in an accident near Ponca City, Oklahoma, United States. 4 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

30 October 1999 at 23:00

Classification

Accident

Location

Ponca City, Oklahoma, United States

Coordinates

36.6997, -97.1497

Aircraft

Cessna 210K

Registration

N1162M

Category

Airplane

Engines

1

Operator

Not recorded

Operating rule

Part 91: General Aviation

Purpose of flight

Personal

Phase of flight

Not recorded

Route

Lubbock → Smyrna

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

FTW00LA028

Nobody was injured.

Inadequate quality control by the manufacturer of the throttle control cable, which resulted in failure of the cable due to fatigue. A factor was the lack of suitable terrain for the forced landing.

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

Read the full NTSB narrative

During cruise flight, the pilot retarded the throttle to initiate a descent, intending to reduce manifold pressure from 24 inches to 21 inches. As the manifold pressure dropped below 21 inches, the pilot increased the throttle; however, the manifold pressure continued to decrease until the needle reached the lowest reading on the gauge. The pilot exercised the throttle through its full range, but received no response from the engine. He then executed a forced landing to a muddy field. Postaccident examination of the airplane revealed that the throttle cable had separated. The cable was examined at the NTSB Materials Laboratory and it was determined that the cable failed as result of fatigue cracking. The outer coiled spring housing, in which fatigue was observed, had a coarse texture and contained tool marks and surface fissures. The origin of the fatigue was observed at one of the fissures. There was no corrosion or deposits observed on the exterior surface of the cord. The throttle cable had been installed new 71.3 hours prior to the accident.

Quoted verbatim from the NTSB record.