An airbus A320 returned to the field with ECAM warning 'landing gear shock absorber.' on landing, nosewheel cocked 90 degrees incurring damage.

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Attributes
ACN	566461
Time
Date	200211
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	A320
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	landing : roll
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial
Experience	flight time last 90 days : 113
ASRS Report	566461
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 180 flight time total : 15000 flight time type : 1612
ASRS Report	566460
Events
Anomaly	aircraft equipment problem : critical maintenance problem : improper maintenance maintenance problem : improper documentation non adherence : company policies non adherence : far non adherence : published procedure
Independent Detector	aircraft equipment other aircraft equipment : ecam warning other flight crewa other flight crewb
Resolutory Action	flight crew : landed as precaution flight crew : diverted to another airport none taken : detected after the fact other
Consequence	other other other
Factors
Maintenance	contributing factor : schedule pressure performance deficiency : inspection performance deficiency : installation performance deficiency : non compliance with legal requirements performance deficiency : testing performance deficiency : unqualified personnel performance deficiency : scheduled maintenance
Supplementary
Problem Areas	Maintenance Human Performance Company Aircraft
Primary Problem	Maintenance Human Performance

Narrative:

Normal taxi out and takeoff, followed by shock absorber ECAM on gear retraction. Performed appropriate procedures in conjunction with cpr maintenance and dispatch. Returned for landing at ZZZ. On landing rollout, nosewheel cocked 90 degrees. Stopped on runway, shut down engines. Both nosewheel tires were blown and the rims scraped. Talked to maintenance and fire department and decided to keep passenger aboard until airstairs and buses arrived. Aircraft subsequently towed to maintenance. Callback conversation with reporter revealed the following information: the reporter stated the aircraft just came out of a scheduled maintenance check accomplished by a contract low bidder maintenance organization. The reporter said the maintenance findings after investigation revealed the nose strut ctring cam assembly was built up incorrectly.

Original NASA ASRS Text

Title: AN AIRBUS A320 RETURNED TO THE FIELD WITH ECAM WARNING 'LNDG GEAR SHOCK ABSORBER.' ON LNDG, NOSEWHEEL COCKED 90 DEGS INCURRING DAMAGE.

Narrative: NORMAL TAXI OUT AND TKOF, FOLLOWED BY SHOCK ABSORBER ECAM ON GEAR RETRACTION. PERFORMED APPROPRIATE PROCS IN CONJUNCTION WITH CPR MAINT AND DISPATCH. RETURNED FOR LNDG AT ZZZ. ON LNDG ROLLOUT, NOSEWHEEL COCKED 90 DEGS. STOPPED ON RWY, SHUT DOWN ENGS. BOTH NOSEWHEEL TIRES WERE BLOWN AND THE RIMS SCRAPED. TALKED TO MAINT AND FIRE DEPT AND DECIDED TO KEEP PAX ABOARD UNTIL AIRSTAIRS AND BUSES ARRIVED. ACFT SUBSEQUENTLY TOWED TO MAINT. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THE ACFT JUST CAME OUT OF A SCHEDULED MAINT CHK ACCOMPLISHED BY A CONTRACT LOW BIDDER MAINT ORGANIZATION. THE RPTR SAID THE MAINT FINDINGS AFTER INVESTIGATION REVEALED THE NOSE STRUT CTRING CAM ASSEMBLY WAS BUILT UP INCORRECTLY.

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.