NTSB Identification: DEN08LA021.
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Accident occurred Sunday, October 28, 2007 in Los Alamos, NM
Probable Cause Approval Date: 01/31/2008
Aircraft: Cessna T210K, registration: N8251M
Injuries: 2 Uninjured.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

According to the pilot's statement, during his approach to Los Alamos, he attempted to extend the landing gear. During the gear extension, the pilot noted that "something did not sound right, and [I] did not get a gear down indication in the cockpit." The pilot cycled the landing gear approximately "10 to 15 times in various speeds, power settings, g-loads, and attitudes" with no result. The pilot attempted to extend the landing gear manually, again with no result. The pilot then decided to fly the airplane to the airport in Santa Fe, New Mexico, which has a control tower, and have the tower controllers visually verify that the landing gear was down. The tower controller at Santa Fe advised the pilot that the airplane's nose landing gear was not extended and the nose gear doors were closed. After several more unsuccessful attempts to troubleshoot the problem, the pilot returned to Los Alamos and landed the airplane with the nose gear retracted, resulting in substantial damage. The airplane was examined and the landing gear was operated by a FAA inspector. During the first gear extension the nose landing gear unlocked, but the nose landing gear doors did not open. A mechanic pushed lightly on the gear doors and they came open, and the nose landing gear came down and locked. Subsequent cycles of the landing gear could not duplicate the problem.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

The binding of the nose landing gear doors for undetermined reasons, resulting in the pilot having to make a nose gear up landing.

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