ASN Wikibase Occurrence # 43985
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| Date: | Sunday 15 October 2006 |
| Time: | 13:03 |
| Type: |  Rockwell Aero Commander 690A |
| Owner/operator: | Private |
| Registration: | N55JS |
| MSN: | 11195 |
| Year of manufacture: | 1974 |
| Total airframe hrs: | 7943 hours |
| Engine model: | Honeywell Aerospace TPE33110T515K |
| Fatalities: | Fatalities: 4 / Occupants: 4 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Antlers, OK -
 United States of America
|
| Phase: | En route |
| Nature: | Private |
| Departure airport: | Oklahoma City, OK (PWA) |
| Orlando, FL (ORL) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
Approximately 37 minutes after departing on a 928-nautical mile cross-country flight under instrument flight rules, the twin-engine turboprop airplane experienced an in-flight break-up after encountering moderate turbulence while in cruise flight at the assigned altitude of FL230. In the moments preceding the break-up, the airplane had been flying approximately 15 to 20 knots above the placarded maximum airspeed for operations in moderate turbulence. The airplane was found to be approximately 1,038 pounds over the maximum takeoff weight listed in the airplane's type certificate data sheet (TCDS). The last radar returns indicated that the airplane performed a 180-degree left turn while descending at a rate of approximately 13,500 feet per minute. There were no reported eyewitnesses to the accident. The wreckage was located the next day in densely wooded terrain. The wreckage was scattered over an area approximately three miles long by one mile wide. An examination of the airframe revealed that the airplane's design limits had been exceeded, and that the examined fractures were due to overload failure.
Probable Cause: The pilot's failure to reduce airspeed while operating in an area of moderate turbulence, resulting in an in-flight break up. Contributing factors were the pilot's decision to exceed the maximum takeoff weight, and the prevailing turbulence.
Accident investigation:
 |
|
Sources:
NTSB: https://www.ntsb.gov/_layouts/ntsb.aviation/brief.aspx?ev_id=20061024X01554&key=1
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 28-Oct-2008 00:45 | ASN archive | Added |
| 12-Feb-2012 01:24 | Gwydd | Updated [Aircraft type] |
| 21-Dec-2016 19:24 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 05-Dec-2017 10:14 | ASN Update Bot | Updated [Operator, Other fatalities, Departure airport, Destination airport, Source, Narrative] |
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