Narrative:

For center tank underwing indicator deferral you need to verify that certain change order auths are completed/not completed. I believe that the MEL is very unclr on the matter and should state how to verify the change order auths have/have not been completed. The format in the computer I used apparently was not the proper format, thus the deferral was not legal. This was discovered by line maintenance a full day later. Actions were taken at 2 different stations to fix problem. I believe that future problems could be avoided if the MEL stated where to look for completion of change order auths.

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Original NASA ASRS Text

Title: A B737-200 WAS DISPATCHED IN NON COMPLIANCE WITH A DEFERRED ITEM CTR TANK FUEL QUANTITY INDICATOR INOP WITH STATUS OF INDICATOR MODIFICATIONS UNKNOWN.

Narrative: FOR CTR TANK UNDERWING INDICATOR DEFERRAL YOU NEED TO VERIFY THAT CERTAIN CHANGE ORDER AUTHS ARE COMPLETED/NOT COMPLETED. I BELIEVE THAT THE MEL IS VERY UNCLR ON THE MATTER AND SHOULD STATE HOW TO VERIFY THE CHANGE ORDER AUTHS HAVE/HAVE NOT BEEN COMPLETED. THE FORMAT IN THE COMPUTER I USED APPARENTLY WAS NOT THE PROPER FORMAT, THUS THE DEFERRAL WAS NOT LEGAL. THIS WAS DISCOVERED BY LINE MAINT A FULL DAY LATER. ACTIONS WERE TAKEN AT 2 DIFFERENT STATIONS TO FIX PROB. I BELIEVE THAT FUTURE PROBS COULD BE AVOIDED IF THE MEL STATED WHERE TO LOOK FOR COMPLETION OF CHANGE ORDER AUTHS.

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.