ASN Wikibase Occurrence # 40574
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| Date: | Friday 22 February 1991 |
| Time: | 15:19 |
| Type: |  Mitsubishi MU-2B-60 Marquise |
| Owner/operator: | Scope Leasing Inc |
| Registration: | N274MA |
| MSN: | 786SA |
| Year of manufacture: | 1980 |
| Total airframe hrs: | 6094 hours |
| Engine model: | GARRETT TPE-331-10 |
| Fatalities: | Fatalities: 3 / Occupants: 3 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Tulsa International (TUL), OK -
 United States of America
|
| Phase: | Take off |
| Nature: | Test |
| Departure airport: | Tulsa International Airport, Tulsa OK (TUL/KTUL) |
| Confidence Rating: |  Information is only available from news, social media or unofficial sources |
After a normal take-off roll and lift-off from Runway 35L at Tulsa, power was apparently lost on the right engine as the aircraft climbed through about 150 feet. The propeller was feathered but the pilot lost control of the aircraft and it dived almost vertically into the ground, impacting about a quarter of a mile beyond the end of the runway and to the right of the extended centre line. The accident happened during a maintenance test flight following a double engine change.
An examination of the wreckage revealed that the right engine had been shut down and the propeller feathered. A subsequent investigation did not reveal any evidence of pre-impact failure or malfunction of either engine or any of the airframe systems. Engine mounting/rigging continuity could not be established due to impact damage. The pilot was a principal in the operator's organisation and not one of the regular line pilots.
Evidence indicated that the undercarriage was up and that the left spoiler was deployed at impact. The emergency procedure, taught in transition training, is to use rudder trim as soon as possible after engine failure to preclude the deployment of spoilers. Rudder trim was found in the neutral position.
The NTSB determined the probable cause of the accident to be: The shutdown of one engine for undetermined reasons and the pilot's failure to maintain Vmca during a critical phase of flight. A factor in the accident was the pilot's improper emergency procedure.
All three persons on board (pilot and two passengers) were killed. The registration N274NA was cancelled by the FAA on March 13 1991
Sources:
https://www.ntsb.gov/_layouts/ntsb.aviation/brief.aspx?ev_id=20001212X16451&key=1
History of this aircraft
Other occurrences involving this aircraft
| 11 November 1982 | N274MA | International Jet Aviation Ser | 0 | Englewood, CO | |
sub |
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 24-Oct-2008 10:30 | ASN archive | Added |
| 04-Mar-2016 23:06 | Dr.John Smith | Updated [Operator, Location, Nature, Departure airport, Source, Narrative] |
| 21-Dec-2016 19:23 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 04-Aug-2017 14:36 | TB | Updated [Location, Source] |
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