Saturday, August 08, 2020

Van's RV-4, N54WP: Accident occurred July 22, 2020 near McCurtain County Regional Airport (4O4), Idabel, Oklahoma

This is preliminary information, subject to change, and may contain errors. Any errors in this report will be corrected when the final report has been completed. 

The National Transportation Safety Board did not travel to the scene of this accident.

Additional Participating Entity: 

Federal Aviation Administration / Flight Standards District Office;
Oklahoma City, Oklahoma

Location: Idabel, OK

Accident Number: CEN20LA301
Date & Time: 07/22/2020, 1745 CDT
Registration: N54WP
Aircraft: Vans RV4
Injuries: 2 None
Flight Conducted Under: Part 91: General Aviation - Personal

On July 22, 2020, about 1745 central daylight time, a Vans RV4, N54WP, was substantially damaged when it was involved in an accident near Idabel, Oklahoma. The airline transport private pilot and 1 child passenger were not injured. The airplane was being operated as a Title 14 Code of Federal Regulations (CFR) Part 91 personal flight.

According to the pilot, he was on a multi-leg cross country flight. On a planned refueling stop in Kennett, Missouri (TKX), the pilot noticed an oil leak coming from a chaffed oil line leading to the propeller governor. The pilot, with assistance from a local FBO, removed the damaged oil line and replaced the line with a used serviceable oil line. After the installation and preflight, the pilot took off and climbed to 5,500 feet MSL, enroute to his destination. About 70 minutes later, the pilot smelled something and observed oil on the windscreen. The pilot asked Air Traffic Control (ATC) for the nearest airport, which was about 11-miles away. As the pilot was maneuvering to the airport to land, the engine stopped producing power. About 1/2 mile from the airport, about 70-feet above the ground, the pilot attempted to maneuver the airplane to land on a roadway. The airplane impacted power lines and the ground. The pilot stated that he could not see the power lines through the oil covered windscreen. The airplane came to rest in a ditch adjacent to the roadway, resulting in structural damage to the fuselage and empennage. Both occupants exited the airplane uninjured and emergency personnel arrived.

Examination of the engine after the accident revealed a crack in the oil line leading to the propeller governor. There was no clamp securing the oil line.

The experimental airplane had completed a conditional airworthiness inspection on May 1, 2020. According to FAA Airworthiness Directive AD 90-04-06R1, a clamp should have been installed on the oil line leading to the propeller governor. The pilot reported that when he replaced the oil line at TKX, there was no clamp present, so he did not install a clamp and was not aware of the applicable AD. He also reported that had he been aware of the AD, he would have installed a new oil line and clamp.

Aircraft and Owner/Operator Information

Aircraft Make: Vans
Registration: N54WP
Model/Series: RV4 Undesignated
Aircraft Category:Airplane
Amateur Built: No
Operator: On file
Operating Certificate(s) Held: None

Meteorological Information and Flight Plan

Conditions at Accident Site: Visual Conditions
Condition of Light: Day
Observation Facility, Elevation: 4O4, 471 ft msl
Observation Time: 1735 CDT
Distance from Accident Site: 1 Nautical Miles
Temperature/Dew Point: 26°C / 21°C
Lowest Cloud Condition: Clear
Wind Speed/Gusts, Direction: 7 knots / , 130°
Lowest Ceiling: None
Visibility: 10 Miles
Altimeter Setting: 29.96 inches Hg
Type of Flight Plan Filed: None
Departure Point: Kennett, MO (TKX)
Destination: Midlothian, TX (T56)

Wreckage and Impact Information

Crew Injuries: 1 None
Aircraft Damage: Substantial
Passenger Injuries: 1 None
Aircraft Fire: None
Ground Injuries: N/A
Aircraft Explosion: None
Total Injuries: 2 None
Latitude, Longitude: 33.900000, -94.830000 (est)

IDABEL, Oklahoma (KSLA) — At approximately 6 p.m. on July 22nd, a small plane carrying two people crashed near the McCurtain County Regional Airport in Idabel, Oklahoma.

Oklahoma Highway Patrol says they were called to assist after the father and son crash-landed.

The pair were flying the plane when technical issues forced them to initiate an emergency landing.

While descending, the plane made contact with power lines, causing the crash.

Both individuals survived the crash and are reported to be OK.

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