ASN Wikibase Occurrence # 175518
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| Date: | Saturday 18 April 2015 |
| Time: | 13:00 |
| Type: |  Cessna 400 Corvalis (LC41-550FG) |
| Owner/operator: | Icarus Air LLC |
| Registration: | N400BZ |
| MSN: | 411087 |
| Year of manufacture: | 2008 |
| Total airframe hrs: | 458 hours |
| Engine model: | Continental TSIO 550C |
| Fatalities: | Fatalities: 0 / Occupants: 3 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Space Coast Regional Airport (KTIX), Titusville, Florida -
 United States of America
|
| Phase: | En route |
| Nature: | Private |
| Departure airport: | Savannah, GA (SAV) |
| Okeechobee, FL (OBE) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
During a preflight inspection, the private pilot verified that the engine contained about 7 quarts of oil; he subsequently departed on a cross-country flight. About 1 hour into the flight, the pilot observed the oil pressure decline. The propeller stopped turning, and smoke entered the cabin. The pilot declared an emergency and subsequently completed a forced landing at a nearby airport. As the airplane came to rest, the pilot observed flames coming from the engine cowling. After the passengers egressed, most of the airplane was consumed by fire.
Postaccident examination of the airplane revealed thermal damage to the engine compartment and fuselage. One exhaust valve rocker box cover was missing, another rocker box cover was missing multiple screws, and a third rocker box cover was loose. Multiple oil journals were dry and displayed heat discoloration. The separation of the rocker box cover resulted in the engine depleting its oil supply during the flight and a subsequent catastrophic engine failure due to oil starvation.
A review of the airplane’s maintenance history indicated that the rocker box covers would have been removed about 4 years before the accident when the engine was disassembled following a propeller strike. However, based on maintenance log entries, it could not be determined whether the rocker box covers had been removed or inspected since that time.
Probable Cause: An inflight fire and a total loss of engine power due to oil starvation, after separation of the No. 3 cylinder exhaust valve rocker box cover for reasons that could not be determined based on the available information.
Accident investigation:
 |
|
Sources:
NTSB
FAA register: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=400BZ
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 19-Apr-2015 12:52 | gerard57 | Added |
| 19-Apr-2015 12:52 | harro | Updated [Aircraft type, Cn] |
| 19-Apr-2015 14:29 | Geno | Updated [Operator, Location, Departure airport, Destination airport, Source] |
| 21-Dec-2016 19:30 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 19-Aug-2017 13:53 | ASN Update Bot | Updated [Total occupants, Other fatalities, Departure airport, Destination airport, Source, Narrative] |
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