ASN Wikibase Occurrence # 238518
This information is added by users of ASN. Neither ASN nor the Flight Safety Foundation are responsible for the completeness or correctness of this information.
If you feel this information is incomplete or incorrect, you can submit corrected information.
| Date: | Wednesday 22 July 2020 |
| Time: | 17:45 LT |
| Type: |  Van's RV-4 |
| Owner/operator: | Private |
| Registration: | N54WP |
| MSN: | 2197 |
| Year of manufacture: | 2009 |
| Total airframe hrs: | 670 hours |
| Engine model: | Lycpming IO 360 EXP |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | near McCurtain County Regional Airport (4O4), Idabel, OK -
 United States of America
|
| Phase: | En route |
| Nature: | Private |
| Departure airport: | Kennett Municipal Airport, MO (KNT/KTKX) |
| Midlothian, TX (T56) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
After a full stop landing to refuel on a cross-country flight in the experimental airplane, the pilot noticed a chaffed oil line leading to the propellor governor. The pilot, with assistance from a local mechanic, removed the damaged oil line and replaced it with a used serviceable line. The pilot pre-flighted the airplane, took off, and continued his flight. About 70 minutes into the flight, the pilot observed oil on the windscreen. As the pilot maneuvered for a precautionary landing at a nearby airport, the engine stopped producing power. About 1/2 mile from the airport, the pilot attempted 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.
Examination of the airplane and engine after the accident revealed a crack in the oil line leading to the propeller governor from its connection at the engine case. There was no clamp installed to secure the line. A conditional airworthiness inspection had recently been completed on the experimental airplane. According to Federal Aviation Administration 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, there was no clamp present, so he did not install a clamp and was not aware of the applicable AD. He stated that had he been aware of the AD, he would have installed a new oil line and clamp. The available evidence indicates that the pilot's improper installation of the oil line resulted in the in-flight loss of oil and subsequent total loss of engine power.
Probable Cause: The pilot's improper installation of an oil line, resulting in the loss of oil and subsequent total loss of engine power.
Accident investigation:
 |
|
Sources:
NTSB CEN20LA301
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 23-Jul-2020 14:21 | Geno | Added |
| 23-Jul-2020 14:41 | RobertMB | Updated [Time, Aircraft type, Registration, Cn, Operator, Phase, Source, Damage, Narrative] |
| 23-Jul-2020 15:18 | Captain Adam | Updated [Narrative] |
| 02-Sep-2020 13:53 | ASN Update Bot | Updated [Time, Departure airport, Destination airport, Source, Narrative] |
| 03-Nov-2022 20:13 | ASN Update Bot | Updated [Time, Other fatalities, Departure airport, Source, Narrative, Category, Accident report] |
Corrections or additions? ... Edit this accident description
The Aviation Safety Network is an exclusive service provided by:
Quick Links:
| ASN Home | Send Correction / Feedback |
| FSF Home | Disclaimer | Copyright |
| Contact Us | Privacy Policy |
| Press / Media |
CONNECT WITH US:
©2024 Flight Safety Foundation