Cessna P210N N152BT

Summary

On 9 December 2021 at about 23:44 local time, a Cessna P210N registered N152BT, operated by Coho Aviation LLC, was involved in an accident near Hillsboro, Oregon, 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

9 December 2021 at 23:44

Classification

Accident

Location

Hillsboro, Oregon, United States

Nearest airport

Stark's Twin Oaks Airpark (7S3)

Coordinates

45.4285, -122.9422

Aircraft

Cessna P210N

Registration

N152BT

Category

Airplane

Year built

1980

Engines

1

Operator

Coho Aviation LLC

Operating rule

Part 91: General Aviation

Purpose of flight

Personal

Phase of flight

Not recorded

Route

Hillsboro → Hillsboro

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

WPR22LA060

Nobody was injured.

The on-ground collision with a tree during an off airport precautionary landing.  Contributing was the partial loss of engine power 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 flying the airplane to an airport 7 miles from the departure airport after it had just received an annual inspection when the accident occurred. He reported the airplane was struggling to climb and maintain altitude and, being unsure he would make it to the destination airport, he elected to return to the departure airport. After he verified that the engine controls were at their correct positions, he saw the exhaust gas temperature (EGT) spike on three cylinders. He adjusted the mixture to cool the cylinders but the EGTs remained elevated, so he landed the airplane in an orchard, which resulted in substantial damage to the horizontal stabilizers. A postaccident engine run and examination of the engine revealed that the right magneto was not operational due to corrosion build-up inside the magneto. A review of the maintenance records revealed that the right magneto was last serviced about 609 hours before the accident; the last 500-hour inspection was completed about 850.7 hours; and the last overhaul was completed 1,386 hours (about 19 years) before the accident, respectively. It is likely that the inoperable magneto reduced the power output and prevented the pilot from maintaining altitude.

Quoted verbatim from the NTSB record.