An airbus 319 was dispatched in non compliance with the incorrect brake temperature probe installed ...

Attributes
ACN	543805
Time
Date	200204
Day	Wed
Local Time Of Day	0001 To 0600
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Environment
Light	Night
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	A319
Operating Under FAR Part	Part 121
Flight Phase	ground : maintenance
Person 1
Affiliation	company : air carrier
Function	maintenance : lead technician
Qualification	technician : airframe technician : powerplant
Experience	maintenance lead technician : 4 maintenance technician : 14
ASRS Report	543805
Person 2
Affiliation	company : air carrier
Function	maintenance : technician
Events
Anomaly	aircraft equipment problem : less severe maintenance problem : improper maintenance maintenance problem : improper documentation non adherence : far non adherence : published procedure
Independent Detector	aircraft equipment other aircraft equipment : #2 brake temp indication other other : person 1
Resolutory Action	none taken : detected after the fact
Consequence	other
Factors
Maintenance	contributing factor : non availability of parts contributing factor : manuals performance deficiency : repair performance deficiency : installation
Supplementary
Problem Areas	Maintenance Human Performance Chart Or Publication Aircraft
Primary Problem	Maintenance Human Performance

Narrative:

Found #2 brake assembly worn to limits on overnight maintenance. Removed brake part number air carrier X xxxxx. Installed air carrier X part number yyyyy on the service able brake assembly. I found the brake temperature probe electrical connector damaged. Swapped the probe from serviceable brake with the probe from the unserviceable brake, from xxxxx to yyyyy. I didn't realize that the brakes in stock were of 2 different part numbers. By swapping the temperature probes, I unknowingly unmoded the yyyyy brake assembly to xxxxx. The aircraft maintenance manuals, company maintenance alert bulletins and maintenance policy and procedures manuals make no reference to the difference in physical sync of the mode and unmode brake assembly temperature probes. No description of the differences between air carrier X part number xxxxx on air carrier X part number yyyyy. Brake assemblies are available to me as a line mechanic.

Original NASA ASRS Text

Title: AN AIRBUS 319 WAS DISPATCHED IN NON COMPLIANCE WITH THE INCORRECT BRAKE TEMP PROBE INSTALLED IN #2 BRAKE ASSEMBLY.

Narrative: FOUND #2 BRAKE ASSEMBLY WORN TO LIMITS ON OVERNIGHT MAINT. REMOVED BRAKE PART NUMBER ACR X XXXXX. INSTALLED ACR X PART NUMBER YYYYY ON THE SVC ABLE BRAKE ASSEMBLY. I FOUND THE BRAKE TEMP PROBE ELECTRICAL CONNECTOR DAMAGED. SWAPPED THE PROBE FROM SERVICEABLE BRAKE WITH THE PROBE FROM THE UNSERVICEABLE BRAKE, FROM XXXXX TO YYYYY. I DIDN'T REALIZE THAT THE BRAKES IN STOCK WERE OF 2 DIFFERENT PART NUMBERS. BY SWAPPING THE TEMP PROBES, I UNKNOWINGLY UNMODED THE YYYYY BRAKE ASSEMBLY TO XXXXX. THE ACFT MAINT MANUALS, COMPANY MAINT ALERT BULLETINS AND MAINT POLICY AND PROCS MANUALS MAKE NO REF TO THE DIFFERENCE IN PHYSICAL SYNC OF THE MODE AND UNMODE BRAKE ASSEMBLY TEMP PROBES. NO DESCRIPTION OF THE DIFFERENCES BTWN ACR X PART NUMBER XXXXX ON ACR X PART NUMBER YYYYY. BRAKE ASSEMBLIES ARE AVAILABLE TO ME AS A LINE MECH.

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.

An airbus 319 was dispatched in non compliance with the incorrect brake temperature probe installed in #2 brake assembly.