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ASN Wikibase Occurrence # 48772
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Time:17:00 LT
Type:Silhouette image of generic CRJ2 model; specific model in this crash may look slightly different
Bombardier CRJ-200 (CL-600-2B19) Regional Jet
Owner/operator:Air Wisconsin for US Airways
Registration: N407AW
MSN: 7424
Fatalities:Fatalities: 0 / Occupants: 3
Other fatalities:0
Aircraft damage: Minor
Location:Philadelphia International Airport, PA (PHL) -   United States of America
Phase: Landing
Departure airport:Norfolk International Airport, VA (ORF)
Destination airport:Philadelphia International Airport, PA (PHL)
Investigating agency: NTSB
On December 14, 2008, about 1700 Eastern Standard Time, Air Wisconsin Airlines flight 3919, a Bombardier CL-600-2B19 (CRJ-200), N407AW, landed at Philadelphia International Airport (PHL), Philadelphia, Pennsylvania, with the left main landing gear in the retracted position. The aircraft was being flown as a repositioning flight from Norfolk International Airport (ORF), Norfolk, Virginia, to PHL. The next leg was to be a revenue flight. There were no injuries to the two flight crew and one flight attendant on board the aircraft.

The flight crew received indications of a left main landing gear problem prior to landing and stated that they completed the applicable Quick Reference Handbook (QRH) procedures, but were unable to lower the left main landing gear. They elected to land with the nose and right main landing gear in the down and locked position and the left main landing gear up.

The on-scene investigation revealed evidence consistent with the airplane having incurred minor damage, to include scuff marks to the left wing tip and outboard end of the left aileron. There was more extensive damage to the flaps on the left wing, which were noted to have been ground down from the flap training edge, through the upper and lower skins, to the ribs.

Maintenance had been performed on both the left and right main landing gear systems prior to the incident flight. Post-incident inspection of the aircraft revealed that, the upper attachment bolt for the left main landing gear uplock assembly, which is designed to be attached to both the uplock mechanism and the structure, was attached to the airplane structure only.


Accident investigation:
Investigating agency: NTSB
Status: Investigation completed
Duration: 11 years and 3 months
Download report: Final report

Safety recommendations:

Safety recommendation A-10-96 issued 28 May 2010 by NTSB to FAA
Safety recommendation A-10-97 issued 28 May 2010 by NTSB to FAA


Photo of N407AW courtesy

Washington - Ronald Reagan National (KDCA / DCA)
6 October 2015; (c) Phil

Revision history:

15-Dec-2008 00:16 relax630 Added
16-Dec-2008 01:10 RokinRyan Updated
28-May-2010 11:19 harro Updated [Time, Location, Phase, Nature, Departure airport, Destination airport, Source, Damage, Narrative]
21-Dec-2016 19:25 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
16-Jun-2020 21:11 Aerossurance Updated [Time, Source, Narrative]

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