<< >> NASA ASRS Report 409152, July 1998

A B737-300 had a #2 brake assembly installed incorrectly by FBO mechanics and discovered by an air carrier mechanic prior to flight.

Attributes
ACN	409152
Time
Date	199807
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : zzz
State Reference	US
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B737-300
Navigation In Use	Other Other
Flight Phase	other
Flight Plan	None
Person 1
Affiliation	company : air carrier
Function	other personnel other oversight : supervisor
Qualification	other other : other
ASRS Report	409152
Person 2
Affiliation	Other
Function	other personnel
Qualification	other other : other
ASRS Report	409811
Events
Anomaly	aircraft equipment problem : critical non adherence : far non adherence : published procedure
Independent Detector	other other : unspecified
Resolutory Action	other
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

On preflight the crew found #2 main landing gear brake spurting hydraulic fluid. FBO replaced with an air carrier brake assembly which was in stock at the station. The maintenance manual for brake right&right was faxed to the station before work was started. The tire replacement maintenance manual was faxed while brake was being installed. When the air carrier mechanics came on shift, they found #2 main landing gear brake mounted 2 holes off of normal installation. Operations sent irregularity report data on log #1 on seat 12C, instead of log #3 the leaking brake and had a wrong reference listed, which I did not catch until after log #1 was accepted and cleared. Log #3 was cleared with proper references listed and maintenance records part numbers.

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Original NASA ASRS Text

Title: A B737-300 HAD A #2 BRAKE ASSEMBLY INSTALLED INCORRECTLY BY FBO MECHS AND DISCOVERED BY AN ACR MECH PRIOR TO FLT.

Narrative: ON PREFLT THE CREW FOUND #2 MAIN LNDG GEAR BRAKE SPURTING HYD FLUID. FBO REPLACED WITH AN ACR BRAKE ASSEMBLY WHICH WAS IN STOCK AT THE STATION. THE MAINT MANUAL FOR BRAKE R&R WAS FAXED TO THE STATION BEFORE WORK WAS STARTED. THE TIRE REPLACEMENT MAINT MANUAL WAS FAXED WHILE BRAKE WAS BEING INSTALLED. WHEN THE ACR MECHS CAME ON SHIFT, THEY FOUND #2 MAIN LNDG GEAR BRAKE MOUNTED 2 HOLES OFF OF NORMAL INSTALLATION. OPS SENT IRREGULARITY RPT DATA ON LOG #1 ON SEAT 12C, INSTEAD OF LOG #3 THE LEAKING BRAKE AND HAD A WRONG REF LISTED, WHICH I DID NOT CATCH UNTIL AFTER LOG #1 WAS ACCEPTED AND CLRED. LOG #3 WAS CLRED WITH PROPER REFS LISTED AND MAINT RECORDS PART NUMBERS.

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.