ASN Wikibase Occurrence # 279334
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| Date: | Saturday 18 June 2022 |
| Time: | 08:45 LT |
| Type: |  Mooney M20E |
| Owner/operator: | Private |
| Registration: | N5895Q |
| MSN: | 812 |
| Year of manufacture: | 1965 |
| Total airframe hrs: | 4488 hours |
| Engine model: | Lycoming IO360A1A |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | near Stillwater, OK -
 United States of America
|
| Phase: | En route |
| Nature: | Private |
| Departure airport: | Seminole Municipal Airport, OK (KSRE) |
| Benton, KS (1K1) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot reported that, during cruise flight, the engine lost partial power, which necessitated an emergency landing on a highway. During the landing, the airplane impacted a road barrier, which resulted in substantial damage to the left wing.
During a postaccident examination, the induction air coupling was found wrapped in gray tape. When the tape was removed, separations were visible on the top and bottom at the flange on the inboard side. The top and bottom separations likely reduced the rigidity of the coupling when the engine was operating. Examination of the inside of the coupling showed that the lower portion appeared to be permanently deformed in a manner similar to compression. Therefore, because of the reduction in the coupling's rigidity, the coupling had likely closed due to suction from the engine, which impeded airflow.
Tape should not have been applied as a fix for the induction coupling separations. The investigation could not determine when the coupling separations appeared or the tape was applied, but those events had likely caused the permanent deformation to the coupling. The airframe and powerplant mechanic, who performed annual inspections for the airplane during the 3 years before the accident. should not have allowed the airplane to return to service with the tape applied and the coupling deformed.
Probable Cause: The inadequate maintenance and inspection of the engine induction air coupling, which impeded airflow to the engine and resulted in the subsequent partial loss of engine power.
Accident investigation:
 |
|
Sources:
NTSB CEN22LA255
https://flightaware.com/live/flight/N5895Q/history/20220618/1415Z
Location
Media:
US-412/CIMARRON TPK: Traffic is temporarily slowed on westbound US-412/Cimarron Tpk and eastbound traffic will be intermittently stopped between mm 29 and US-77 (mm 2) while a plane is removed from the turnpike after an emergency landing. Thankfully no injuries were reported. pic.twitter.com/gObgtWsIJh
— Oklahoma Turnpike Authority (@OKTurnpike) June 18, 2022
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 18-Jun-2022 16:13 | Captain Adam | Added |
| 18-Jun-2022 16:43 | harro | Updated [Aircraft type, Registration, Cn, Operator, Source] |
| 18-Jun-2022 18:36 | harro | Updated [Embed code, Damage, Narrative] |
| 29-Jun-2022 19:10 | Captain Adam | Updated [Time, Operator, Phase, Nature, Destination airport, Source, Embed code, Narrative, Category] |
| 30-Sep-2023 11:58 | ASN Update Bot | Updated [[Time, Operator, Phase, Nature, Destination airport, Source, Embed code, Narrative, Category]] |
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