Accident Cessna 525 CitationJet N909M,

ASN Wikibase Occurrence # 323328

Date:	Thursday 8 March 2001
Time:	21:20
Type:	Cessna 525 CitationJet
Owner/operator:	Wilmington Trust
Registration:	N909M
MSN:	525-0249
Year of manufacture:	1998
Total airframe hrs:	743 hours
Engine model:	Williams International FJ44-1A
Fatalities:	Fatalities: 0 / Occupants: 1
Aircraft damage:	Substantial, repaired
Category:	Accident
Location:	Hamburg-Fuhlsbüttel Airport (HAM) - Germany
Phase:	Landing
Nature:	Executive
Departure airport:	Mannheim Airport (MHG/EDFM)
Destination airport:	Hamburg-Fuhlsbüttel Airport (HAM/EDDH)
Investigating agency:	BFU
Confidence Rating:	Accident investigation report completed and information captured

Narrative:
About 20:45 the pilot contacted Hamburg Tower for a landing on runway 15. The airplane did not touch down on the runway but the pilot initiated a go-around. With the next radio contact ten minutes later, the pilot reported to the TWR controller that his CitationJet had landing gear problems. During an arranged fly-by of the airplane by the tower, the controller confirmed that the undercarriage was down. Nevertheless the instruments did not show three greens. About 21:20, the aircraft touched down normally with the right-hand landing gear yielding immediately. By counteracting the airplane movement, the pilot managed in delaying ground contact of the right-hand wing and afterwards holding the CitationJet over a distance of 1000 m on the runway. Finally the airplane stopped 30 m to the right beside runway 15 and appr. 300 m in front of the intersection with runway 23.

CONCLUSIONS: "The cause of the accident was that: a) the hydraulic system failed as a result of a defective
valve; b) the pilot did not accomplish the procedure recommended by the manufacturer in case the landing gear is not positively locked. A contributing factor to b) was that the instruction given by the manufacturer is not clearly formulated."

Accident investigation: