After installing a vendor overhauled nose landing gear on an A320 nine months earlier; a mechanic is notified both nose gear lock springs were found installed upside-down. No negative effects of incorrect installation occurred.

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Attributes
ACN	818979
Time
Date	200803
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	A320
Person 1
Affiliation	company : air carrier
Function	maintenance : technician
ASRS Report	818979
Events
Anomaly	maintenance problem : improper maintenance
Independent Detector	other other : 1
Resolutory Action	none taken : detected after the fact
Consequence	other
Factors
Maintenance	contributing factor : manuals contributing factor : engineering procedure contributing factor : briefing performance deficiency : training performance deficiency : installation performance deficiency : inspection performance deficiency : scheduled maintenance
Supplementary
Problem Areas	Chart Or Publication Company Maintenance Human Performance
Primary Problem	Maintenance Human Performance

Narrative:

I assisted installing 2 nose gear lock springs upside-down found at another station.

Original NASA ASRS Text

Title: After installing a vendor overhauled nose landing gear on an A320 nine months earlier; a Mechanic is notified both nose gear lock springs were found installed upside-down. No negative effects of incorrect installation occurred.

Narrative: I assisted installing 2 nose gear lock springs upside-down found at another station.

Data retrieved from NASA's ASRS site as of May 2009 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.