Cirrus SR22 N183V

Summary

On 24 October 2020 at about 17:00 local time, a Cirrus SR22 registered N183V, operated by Leatherneck Oilfield Service Inc, was involved in an accident near Tishomingo, Oklahoma, United States. 4 people were on board and 4 had minor injuries. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

24 October 2020 at 17:00

Classification

Accident

Location

Tishomingo, Oklahoma, United States

Coordinates

34.1900, -96.6000

Aircraft

Cirrus SR22

Registration

N183V

Category

Airplane

Year built

2008

Engines

1

Operator

Leatherneck Oilfield Service Inc

Operating rule

Part 91: General Aviation

Purpose of flight

Personal

Phase of flight

Not recorded

Route

Odessa → Atoka

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

CEN21LA057

4 people had minor injuries.

The pilot’s improper adjustment of the engine mixture control, which resulted in a total loss of engine power. Contributing to the accident was a disconnected oil temperature connector, which was likely damaged during maintenance before the accident flight and provided erratic indications during the flight.

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

Read the full NTSB narrative

The private pilot and three passengers departed on a personal flight in visual conditions. As the airplane approached its destination while at an altitude of about 900 ft above ground level, the pilot received cockpit indications of erratic high engine oil temperature. About 5 seconds after the indications began, the pilot moved the throttle to idle power and likely adjusted the fuel-air mixture. About 3 seconds after moving the throttle to idle power, the pilot advanced the throttle to a cruise power setting, but the fuel flow and engine power did not increase. The pilot made additional throttle movements, but the fuel flow and engine power did not correspond to throttle movements most likely because the pilot had adjusted the fuel-air mixture toward a lean setting. Thus, the pilot’s actions in response to the high engine oil indications led to the loss of engine power. Without engine power, the airplane’s airspeed decreased to about 85 knots, and the pilot successfully deployed the airplane’s parachute system. Postaccident examination revealed no anomalies that would have precluded normal engine power. The oil temperature connector and back shell were damaged, with the back shell disconnected from the oil temperature connector. The accident flight was the first after maintenance work during which a crush gasket adjacent to the damaged oil temperature connector was replaced. The oil temperature connector was most likely damaged during this maintenance and resulted in erratic indications of high engine oil temperature during the accident flight.

Quoted verbatim from the NTSB record.