ASN Wikibase Occurrence # 315166
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| Date: | Friday 26 May 2023 |
| Time: | 08:58 LT |
| Type: |  Beechcraft B300 King Air 350 |
| Owner/operator: | Dalks Leasing Inc |
| Registration: | N680CB |
| MSN: | FL-499 |
| Year of manufacture: | 2006 |
| Total airframe hrs: | 3604 hours |
| Engine model: | P&W PT6A-67A |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Minor |
| Category: | Accident |
| Location: | Melbourne, FL -
 United States of America
|
| Phase: | En route |
| Nature: | Private |
| Departure airport: | Treasure Cay Airport (TCB/MYAT) |
| Greenville-Spartanburg Airport, SC (GSP/KGSP) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot of the multiengine turboprop airplane was flying over the ocean at FL340 when he heard an “explosion.' He quickly donned his oxygen mask, declared an emergency with air traffic control, and descended to 12,000 ft. The pilot subsequently diverted the flight and landed the airplane uneventfully. After landing he observed that the airstair door had completely separated from the fuselage.
The inflight separation of the airstair door and resulting depressurization of the airplane's cabin constituted substantial damage to the airframe. Post accident examination of the airplane revealed that portions of the airstair door hinges remained attached to the fuselage, the airstair door handle anchor had failed, and the door damper support was bent and its upper bolt sheared. The six door plate strikers on the fuselage were undamaged. The airstair door was not recovered and the condition of its securing mechanisms could not be examined. Given this information, the reason for the inflight separation of the door could not be determined.
Probable Cause: An inflight separation of the airplane's airstair door for undetermined reasons.
Accident investigation:
 |
|
Sources:
NTSB ERA23LA248
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 12-Jun-2023 20:00 | Captain Adam | Added |
| 12-Jun-2023 20:00 | Captain Adam | Updated |
| 19-Aug-2023 08:02 | ASN Update Bot | Updated |
Corrections or additions? ... Edit this accident description
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