, a Piper Cheyene, departed Grace Lake on a medevac flight to Pukatawagan with three people on board, and when the crew selected gear up after takeoff, the gear would not fully retract and the "in transit" light remained illuminated. They then selected gear down and the gear would not extend fully. They elected to return to Grace Lake, where they flew a holding pattern to use up fuel. The emergency system was used to extend the gear, but the pump handle broke. The crew of an RCMP
Twin Otter confirmed that the nose gear was not completely extended. After consultation with another operator, the crew pushed the landing gear selector past the down detent, and the system energized to the extent that all three gear moved to the down and locked position. The a/c landed without further incident. The operator suspects that there was an internal fault related to the sequencing valve in the hydraulic power pack. The crew reported that the landing gear moved down and hung up against the gear doors. OPI - System Safety UPDATE Maintenance and Manufacturing reported that the hydraulic powerpak had a faulty gear solenoid switch and dirt and water was found in the hydraulic system itself. A new powerpak was installed along with a new hand pump assembly. The system was flushed and several gear cycles carried out with no further problems. The a/c was returned to service and the investigation into the source of the contamination is ongoing.