ASN Wikibase Occurrence # 180002
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| Date: | Friday 9 July 2004 |
| Time: | 11:30 |
| Type: |  Cessna 340A |
| Owner/operator: | Private |
| Registration: | N60PP |
| MSN: | 340A-0073 |
| Total airframe hrs: | 2939 hours |
| Engine model: | Teledyne Continental TSIO-520-NB |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Mason City Municipal (MCW), Mason City, Iowa -
 United States of America
|
| Phase: | Approach |
| Nature: | Executive |
| Departure airport: | Goshen, IN (GSH) |
| Mason City, IN (MCW) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The airplane touched down short of the landing runway following a loss of right engine oil pressure during cruise flight at 16,000 feet. The pilot stated that with the loss of oil pressure, he could "easily" make it to the destination. While on final approach and in reported visual conditions, the pilot cancelled his instrument rules flight plan and executed a visual approach. On short final, the oil pressure dropped to zero. He then shutdown the right engine and was not able to get the right engine propeller feathered. He touched down about 7 feet short of the runway. Examination of the airplane revealed that the vacuum line and wing boot deice lines were full of oil. The right engine turbocharger was "seized-up." Examination of the turbocharger bearings and shaft did not show evidence of overheating. The turbocharger bearings and shaft displayed evidence of circumferential wear consistent with normal operation. The right engine driven vacuum pump was "full" of oil and contained an internal oil separator.
Probable Cause: The proper touchdown point not obtain/maintained by the pilot following a single-engine approach to landing. Contributing factors were the vacuum pump oil leak, the low oil pressure of the propeller control system, and the unfeathered propeller.
Accident investigation:
 |
|
Sources:
NTSB: https://www.ntsb.gov/_layouts/ntsb.aviation/brief.aspx?ev_id=20050317X00324&key=1
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 29-Sep-2015 13:40 | Noro | Added |
| 21-Dec-2016 19:30 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 07-Dec-2017 18:14 | ASN Update Bot | Updated [Cn, Other fatalities, Nature, Departure airport, Destination airport, Source, Narrative] |
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