ASN Wikibase Occurrence # 133289
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| Date: | Saturday 16 January 1999 |
| Time: | 10:50 LT |
| Type: |  Wittman W-8 Tailwind |
| Owner/operator: | Paul C. Hanson |
| Registration: | N8188 |
| MSN: | PCH-1 |
| Total airframe hrs: | 605 hours |
| Engine model: | Lycoming O-290-GPU |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Chula Vista, near Brown Field, San Diego, California -
 United States of America
|
| Phase: | En route |
| Nature: | Private |
| Departure airport: | (KSDM) |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot reported no abnormalities during the takeoff and climbout from the airport. After climbing to 4,500 feet msl to fly a northerly heading through a VFR terminal control area corridor, the pilot turned to a northeast heading and descended to 3,500 feet msl and noted that the oil temperature was at redline. He continued his descent to 3,000 feet msl and observed that the oil temperature had slightly decreased. He did note that all other instruments were indicating normal. Approximately 15 minutes after takeoff the engine stopped. The pilot made an emergency landing in an open field; the main landing gear dug into soft dirt and the aircraft vaulted vertically onto its tail and continued in a 360-degree turn before coming to rest upright on its landing gear. Examination of the engine revealed that the number 3 bearing had melted, and the associated connecting rod had separated puncturing the engine case. The engine showed evidence of a lack of lubrication. According to the engine manufacturer representative this engine was manufactured in the 1940's as a ground power unit only and was never intended for aircraft use.
Probable Cause: The loss of lubrication to the number 3 rod bearing and the resulting failure of the number 3 connecting rod. A contributing factor to the accident was the soft terrain at the accident location.
Accident investigation:
 |
|
Sources:
NTSB LAX99LA075
FAA register: 2. FAA: https://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?omni=Home-N-Number&nNumberTxt=N8188
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 06-Feb-2012 11:01 | Dr. John Smith | Updated [Aircraft type, Location, Narrative, Plane category, ] |
| 21-Dec-2016 19:26 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 22-Oct-2017 15:36 | A.J. Scholten | Updated [Narrative] |
| 25-Nov-2017 12:48 | ASN Update Bot | Updated [Cn, Operator, Departure airport, Destination airport, Source, Narrative] |
| 14-Dec-2017 16:56 | ASN Update Bot | Updated [Cn, Operator, Departure airport, Destination airport, Narrative] |
| 29-Mar-2019 19:11 | Dr. John Smith | Updated [Time, Aircraft type, Operator, Location, Departure airport, Destination airport, Source, Narrative] |
| 24-Feb-2021 23:22 | Dr. John Smith | Updated [Aircraft type] |
| 04-Nov-2023 10:20 | nhofmann54 | Updated [[Aircraft type]] |
| 08-Apr-2024 10:43 | ASN Update Bot | Updated [Time, Operator, Other fatalities, Departure airport, Destination airport, Source, Narrative, Accident report] |
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