ASN Wikibase Occurrence # 218781
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| Date: | Thursday 29 November 2018 |
| Time: | 18:55 |
| Type: |  Cirrus SR22 |
| Owner/operator: | Cavern Aviation LLC. |
| Registration: | N597CP |
| MSN: | 3359 |
| Year of manufacture: | 2008 |
| Total airframe hrs: | 1969 hours |
| Engine model: | Continental IO-550-N |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Kennesaw, NNE of Cobb County Int’l Airport (KRYY), Atlanta, GA -
 United States of America
|
| Phase: | En route |
| Nature: | Private |
| Departure airport: | Kansas City-Johnson Executive Airport, MO (OJC/KOJC) |
| Atlanta-DeKalb Peachtree Airport, GA (PDK/KPDK) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
During the descent from 17,500 ft mean sea level (msl), as the airplane was passing through about 7,500 ft msl, the pilot felt a jolt from the engine and subsequently received a low oil pressure alert. The pilot diverted to a closer airport and continued the descent. When the airplane was about 2,000 ft msl, the pilot felt additional jolts and observed sparks emanating from the engine cowling area. Shortly thereafter, the engine lost total power. With no clear landing area available in nighttime conditions over an urban area, he activated the whole-airframe parachute system, and the airplane impacted trees and terrain with the parachute deployed. The fuselage, wings, and empennage sustained substantial damage.
Examination of the engine crankcase revealed a fracture hole at the No. 6 cylinder, and the connecting rod had sheared from the upper crankshaft bearing. Disassembly of the engine and its components revealed that the left turbocharger had seized; rub marks were observed inside the turbine housing; metal contaminants were found inside the oil filter; and the oil sump contained damaged connecting rod ends, valve lifters, and engine bearings. The damage is consistent with an oil circulation interruption and catastrophic engine failure. The source of the interruption of oil circulation to the engine could not be determined after engine disassembly.
Probable Cause: The total loss of engine power due to the interruption of oil circulation for reasons that could not be determined based on the available evidence.
Accident investigation:
 |
|
Sources:
NTSB
FAA register: https://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=N597CP%20
Location
Images:
Photo: FAA
Media:
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 30-Nov-2018 01:03 | Geno | Added |
| 30-Nov-2018 01:50 | Geno | Updated [Aircraft type, Registration, Cn, Operator, Location, Source, Narrative] |
| 30-Nov-2018 06:09 | Geno | Updated [Source] |
| 30-Nov-2018 10:10 | Iceman 29 | Updated [Nature, Source, Embed code, Damage] |
| 30-Nov-2018 19:32 | Anon. | Updated [Phase] |
| 03-Jul-2020 12:40 | ASN Update Bot | Updated [Time, Operator, Departure airport, Destination airport, Source, Damage, Narrative, Accident report, ] |
| 04-Jul-2020 12:08 | harro | Updated [Departure airport, Destination airport, Source, Narrative, Photo, Accident report, ] |
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