On July 16, 1999, a Cessna T210M (registration N6029N) operated by Gary G. Sackett was involved in an aviation accident near Cedar City, UT. Investigators recorded the probable cause as: The pilot's failure to follow alternate landing gear extension procedures. Factors were the main landing gear failure to extend and a loss of electrical power. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.
During cruise, an alternator failure caused electrical power loss. The pilot conducted a precautionary landing at an alternate airport. When lowering the landing gear, the nose gear extended and locked, but the main gear remained retracted. An attempt at alternate extension was incomplete, resulting in a landing with main gear up and damage to horizontal stabilizers and elevators.
Incident
An aircraft experienced a loss of electrical power in cruise flight due to an alternator failure. In response, the pilot elected to perform a precautionary landing at an airport short of the original destination.
Landing Gear Malfunction
When the landing gear was lowered, the nose gear extended and locked down. However, the main landing gear did not deploy and remained in the up position. The pilot then attempted to lower the main landing gear using the alternate extension method. This attempt did not fully follow the prescribed procedure, and the main gear remained retracted.
Landing and Damage
The pilot proceeded to land the aircraft with the nose landing gear extended and the main landing gear retracted. During the landing sequence, the aircraft sustained damage to the horizontal stabilizers and elevators. No further details on the extent of damage or other consequences were provided in the source.