Cessna R182 N8051B

Summary

On 13 May 2021 at about 06:45 local time, a Cessna R182 registered N8051B was involved in an accident near Tulsa, Oklahoma, 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

13 May 2021 at 06:45

Classification

Accident

Location

Tulsa, Oklahoma, United States

Nearest airport

Tulsa Intl (TUL)

Coordinates

36.1914, -95.9002

Aircraft

Cessna R182

Registration

N8051B

Category

Airplane

Year built

1980

Engines

1

Operator

Not recorded

Operating rule

Part 91: General Aviation

Purpose of flight

Personal

Phase of flight

Not recorded

Route

Claremore → Unknown

Aircraft damage

Substantial

Weather

VMC

Light

Night

NTSB number

CEN21LA218

Nobody was injured.

The pilot’s inability to extend the main landing gear due to incomplete maintenance, which resulted in a partial wheels-up landing and the mechanic’s failure to follow proper maintenance procedures that led to the loss of main landing gear system hydraulic pressure and the subsequent failure of the main landing gear to fully extend.

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

Read the full NTSB narrative

The pilot reported that during a post-maintenance check flight, when he went to retract the landing gear after takeoff, he noticed that the amber light that indicated the gear was fully retracted, did not illuminate. The pilot verified the main landing gear indicator lights functioned and decided to validate in flight that the landing gear would extend. When he extended the landing gear, the green light that indicated the landing gear was down and locked did not illuminate, and the pilot was not able to visually confirm the extension of the main landing gear. After troubleshooting the system and several unsuccessful attempts to extend the main landing gear, the pilot performed a gear-up landing to the dry asphalt runway, with only the nose wheel extended. The airplane slid 500 ft before coming to a stop. The airplane sustained substantial damage to the right horizonal stabilizer and elevator. A postaccident examination of the airplane revealed that a b-nut on the main landing gear actuator gear down hydraulic line was only hand tightened, with visible stripped thread present. The mechanic who performed the annual inspection on the airplane, which included work on the main landing gear system, reported that he forgot to fully tighten the b-nut during the recent maintenance work, which resulted in a loss of main landing gear system hydraulic pressure in flight, and the pilot’s inability to fully extend the main landing gear. A successful main landing gear swing was performed during the maintenance work, but it was not performed after all the maintenance work was completed. Had the main landing gear swing been conducted after the maintenance work was completed, it is likely the loss of the main landing gear system hydraulic pressure would have been identified before the flight.

Quoted verbatim from the NTSB record.