A canadair CL65 after takeoff declared an emergency due to unable to retract the nose gear caused by an incorrect nose strut seal repair.

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Attributes
ACN	501639
Time
Date	200102
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : ckb.airport
State Reference	WV
Environment
Flight Conditions	Mixed
Light	Dawn
Aircraft 1
Controlling Facilities	tracon : ckb.tracon
Operator	common carrier : air carrier
Make Model Name	Regional Jet CL65, Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	climbout : initial
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : multi engine pilot : instrument pilot : atp
Experience	flight time last 90 days : 90 flight time total : 3650 flight time type : 2200
ASRS Report	501639
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	aircraft equipment problem : critical maintenance problem : improper maintenance non adherence : far non adherence : published procedure
Independent Detector	aircraft equipment other aircraft equipment : nose gear unsafe light other flight crewa
Resolutory Action	flight crew : declared emergency flight crew : overcame equipment problem
Consequence	other
Factors
Maintenance	contributing factor : schedule pressure contributing factor : work cards performance deficiency : testing performance deficiency : inspection performance deficiency : installation performance deficiency : repair
Supplementary
Problem Areas	Aircraft Maintenance Human Performance
Primary Problem	Maintenance Human Performance

Narrative:

We departed ckb and upon gear retraction we received a gear disagreement warning, a nose gear door warning, a wow input caution and a steering inoperative caution message. We ran the checklists and got the gear down and lock. We declared an emergency, returned, and landed uneventfully. The mechanic later told us that the problem was with a seal in the nose strut that prevented the nose gear from retracting.

Original NASA ASRS Text

Title: A CANADAIR CL65 AFTER TKOF DECLARED AN EMER DUE TO UNABLE TO RETRACT THE NOSE GEAR CAUSED BY AN INCORRECT NOSE STRUT SEAL REPAIR.

Narrative: WE DEPARTED CKB AND UPON GEAR RETRACTION WE RECEIVED A GEAR DISAGREEMENT WARNING, A NOSE GEAR DOOR WARNING, A WOW INPUT CAUTION AND A STEERING INOP CAUTION MESSAGE. WE RAN THE CHKLISTS AND GOT THE GEAR DOWN AND LOCK. WE DECLARED AN EMER, RETURNED, AND LANDED UNEVENTFULLY. THE MECH LATER TOLD US THAT THE PROB WAS WITH A SEAL IN THE NOSE STRUT THAT PREVENTED THE NOSE GEAR FROM RETRACTING.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.