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|
Attributes | |
ACN | 534776 |
Time | |
Date | 200108 |
Day | Sun |
Local Time Of Day | 1801 To 2400 |
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 | B737-700 |
Operating Under FAR Part | Part 121 |
Flight Phase | ground : maintenance ground : parked |
Person 1 | |
Affiliation | company : air carrier |
Function | oversight : supervisor |
Qualification | technician : powerplant technician : airframe |
ASRS Report | 534776 |
Person 2 | |
Affiliation | other |
Function | maintenance : technician |
Events | |
Anomaly | aircraft equipment problem : less severe maintenance problem : improper documentation maintenance problem : improper maintenance non adherence : published procedure non adherence : far |
Independent Detector | aircraft equipment other aircraft equipment : parking brake light other other : 1 |
Resolutory Action | none taken : detected after the fact |
Consequence | other |
Factors | |
Maintenance | contributing factor : schedule pressure performance deficiency : logbook entry performance deficiency : non compliance with legal requirements |
Supplementary | |
Problem Areas | Aircraft Maintenance Human Performance |
Primary Problem | Maintenance Human Performance |
Narrative:
Aug/sun/01 I took a call from the crew terminating XXXX. As best that I can remember, the crew reported the parking brake light was intermittently illuminating with the parking brake set, along with the antiskid inoperative light illuminating. With the parking brake released the parking brake light would stay off and the antiskid light would go off. I believe that my main concern, along with the crew, was the status of the antiskid system. I must have asked the crew to enter, in the open logbook discrepancy, the flight deck effect of the antiskid inoperative light operation. I must have thought that the parking brake light, intermittently illuminating with the parking brake set, and the MEL 32-4 would be self-explanatory if all special procedures were complied with by contract maintenance and passed. ZZZ contract maintenance was called but not readily available to perform the MEL 32-4 special procedure that verifies the operation of the parking brake valve, the parking brake valve light and the antiskid inoperative light. The aircraft was pwred down for the night. Contract maintenance was available to perform the MEL 32-4 special procedure just after XA00. The contract mechanic verified that the parking brake operated and that the parking brake light and the antiskid inoperative light went off with the parking brake released. With my focus being on the antiskid system, I instructed the contract mechanic on the proper method to MEL the parking brake light with the special procedure and tracking number. The parking brake valve was changed during the flight day of aug/mon/01 without any incident. The attention to XXXX MEL 32-4 on aug/mon/01 I believe occurred because of my focus on the antiskid system. I failed to have the intermittent operation of the parking brake light logged.
Original NASA ASRS Text
Title: A B737-700 WAS DISPATCHED IN NON COMPLIANCE WITH AN OPEN LOGBOOK RPT NOT ANSWERED OR DEFERRED.
Narrative: AUG/SUN/01 I TOOK A CALL FROM THE CREW TERMINATING XXXX. AS BEST THAT I CAN REMEMBER, THE CREW RPTED THE PARKING BRAKE LIGHT WAS INTERMITTENTLY ILLUMINATING WITH THE PARKING BRAKE SET, ALONG WITH THE ANTISKID INOP LIGHT ILLUMINATING. WITH THE PARKING BRAKE RELEASED THE PARKING BRAKE LIGHT WOULD STAY OFF AND THE ANTISKID LIGHT WOULD GO OFF. I BELIEVE THAT MY MAIN CONCERN, ALONG WITH THE CREW, WAS THE STATUS OF THE ANTISKID SYS. I MUST HAVE ASKED THE CREW TO ENTER, IN THE OPEN LOGBOOK DISCREPANCY, THE FLT DECK EFFECT OF THE ANTISKID INOP LIGHT OP. I MUST HAVE THOUGHT THAT THE PARKING BRAKE LIGHT, INTERMITTENTLY ILLUMINATING WITH THE PARKING BRAKE SET, AND THE MEL 32-4 WOULD BE SELF-EXPLANATORY IF ALL SPECIAL PROCS WERE COMPLIED WITH BY CONTRACT MAINT AND PASSED. ZZZ CONTRACT MAINT WAS CALLED BUT NOT READILY AVAILABLE TO PERFORM THE MEL 32-4 SPECIAL PROC THAT VERIFIES THE OP OF THE PARKING BRAKE VALVE, THE PARKING BRAKE VALVE LIGHT AND THE ANTISKID INOP LIGHT. THE ACFT WAS PWRED DOWN FOR THE NIGHT. CONTRACT MAINT WAS AVAILABLE TO PERFORM THE MEL 32-4 SPECIAL PROC JUST AFTER XA00. THE CONTRACT MECH VERIFIED THAT THE PARKING BRAKE OPERATED AND THAT THE PARKING BRAKE LIGHT AND THE ANTISKID INOP LIGHT WENT OFF WITH THE PARKING BRAKE RELEASED. WITH MY FOCUS BEING ON THE ANTISKID SYS, I INSTRUCTED THE CONTRACT MECH ON THE PROPER METHOD TO MEL THE PARKING BRAKE LIGHT WITH THE SPECIAL PROC AND TRACKING NUMBER. THE PARKING BRAKE VALVE WAS CHANGED DURING THE FLT DAY OF AUG/MON/01 WITHOUT ANY INCIDENT. THE ATTN TO XXXX MEL 32-4 ON AUG/MON/01 I BELIEVE OCCURRED BECAUSE OF MY FOCUS ON THE ANTISKID SYS. I FAILED TO HAVE THE INTERMITTENT OP OF THE PARKING BRAKE LIGHT LOGGED.
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.