Casualties unknown

2000-07-19: Cessna 310D (N674FT) — Pagosa Springs, CO

Pagosa Springs, CO, US

On July 19, 2000, a Cessna 310D (registration N674FT) was involved in an aviation accident near Pagosa Springs, CO. Investigators recorded the probable cause as: The pilot inadvertently stalling the airplane. Factors were the pilot's failure to use the entire available runway, the high density altitude weather condition, and a partial loss of power on one engine due to a burned exhaust valve. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 1781061362Data APIEditorial standards

A pilot took off with zero flaps on a twin-engine airplane, encountering poor climb performance. The airplane impacted trees after the pilot attempted a left turn. Postaccident examination revealed a cylinder issue in the left engine.

Accident Sequence

A pilot initiated a takeoff in a twin-engine airplane with zero flaps on runway 19. Approximately 1,000 feet of the 8,500-foot runway remained unused behind the aircraft. The pilot reported that the takeoff ground roll "seemed too long," but he believed there was insufficient runway to abort the takeoff. After becoming airborne, the pilot stated that "the airplane would not climb or accelerate." He raised the landing gear and began a slow left turn while searching for a suitable landing site among trees. The pilot recalled seeing 55 mph on the airspeed indicator, after which the airplane dropped and impacted trees.

Environmental and Performance Factors

The density altitude at the time of the accident was 10,810 feet. A review of aircraft performance charts indicated that with a 15-degree flap setting, the airplane should have been able to take off with a ground roll of 2,698 feet.

Postaccident Examination

Following the accident, an examination of the left engine revealed that the #2 cylinder had no thumb compression. Further inspection showed that the top and face of the exhaust valve exhibited two rust-colored burn patterns opposite each other.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001212X21441. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.