ASN Wikibase Occurrence # 242782
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| Date: | Thursday 3 September 2020 |
| Time: | 06:15 LT |
| Type: |  Cessna 340A |
| Owner/operator: | Skymed LLC |
| Registration: | N5178J |
| MSN: | 340A0013 |
| Year of manufacture: | 1975 |
| Total airframe hrs: | 6585 hours |
| Engine model: | Continental TSIO-520 SER |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Oklahoma City, OK -
 United States of America
|
| Phase: | En route |
| Nature: | Private |
| Departure airport: | Oklahoma City, OK |
| Burnet, TX (KMBQ) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
While climbing through 17,000 ft mean sea level (msl) during a cross-country flight, the pilot completed a transition check and verified that the cabin pressure altitude was 8,000 ft and the pressure differential was within limits. As the airplane climbed through 18,000 ft msl, the right windscreen blew out. The pilot returned to the departure airport and landed the airplane without further incident.
Six pieces of acrylic material that comprised the complete outer circumference of the windscreen remained attached to the airframe. The section of windscreen that was blown out during flight was unaccounted for.
The fracture surfaces of the remnants were consistent with overstress separation. The pilot's statement of events did not indicate a malfunction of the aircraft's pressurization system. The origination point of the failure was not identified, and the reason for the windscreen failure could not be determined based on available evidence.
Probable Cause: A failure of the windscreen for reasons that could not be determined based on available evidence.
Accident investigation:
 |
|
Sources:
NTSB CEN20LA378
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 23-Sep-2020 12:00 | ASN Update Bot | Added |
| 27-Jun-2022 11:35 | ASN Update Bot | Updated [Time, Operator, Other fatalities, Nature, Departure airport, Destination airport, Source, Narrative, Category, Accident report] |
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