Accident Saab 340A N40SZ,

ASN Wikibase Occurrence # 322387

Date:	Wednesday 8 June 2005
Time:	21:37
Type:	Saab 340A
Owner/operator:	United Express
Registration:	N40SZ
MSN:	340A-040
Year of manufacture:	1985
Engine model:	General Electric CT7-5A2
Fatalities:	Fatalities: 0 / Occupants: 30
Aircraft damage:	Destroyed, written off
Category:	Accident
Location:	Washington-Dulles International Airport, DC (IAD) - United States of America
Phase:	Landing
Nature:	Passenger - Scheduled
Departure airport:	White Plains-Westchester County Airport, NY (HPN/KHPN)
Destination airport:	Washington-Dulles International Airport, DC (IAD/KIAD)
Investigating agency:	NTSB
Confidence Rating:	Accident investigation report completed and information captured

Narrative:
On approach to Dulles, the right main landing gear was not extended and locked after the crew selected the gear down. Ground personnel observed the gear extended, but could not confirm that it was locked in the fully extended position. The flightcrew then cycled the landing gear and performed the emergency gear extension procedure; however, the cockpit indication did not correct. The flightcrew subsequently performed an emergency landing on runway 19L. During the landing, the right main landing gear collapsed, and the airplane came to rest in a grassy area off the left side of the runway.
The aircraft sustained US$1.13 million of damage and was later bought by Shuttle America from the owner Lambert Leasing Inc to be used for spares.

PROBABLE CAUSE: "Failure of the right main landing gear to extend and lock for undetermined reasons, which resulted in the right main landing gear collapsing during touchdown."

Accident investigation: