|37000 Feet||Browse and search NASA's
Aviation Safety Reporting System
|Local Time Of Day||1201 To 1800|
|Locale Reference||airport : zzz.airport|
|Altitude||agl single value : 0|
|Operator||common carrier : air carrier|
|Make Model Name||B737 Undifferentiated or Other Model|
|Operating Under FAR Part||Part 121|
|Flight Phase||ground : parked|
ground : maintenance
|Affiliation||company : air carrier|
|Function||maintenance : technician|
|Qualification||technician : airframe|
technician : powerplant
|Anomaly||aircraft equipment problem : less severe|
maintenance problem : improper maintenance
non adherence : published procedure
non adherence : company policies
other anomaly other
|Independent Detector||other other : gnd 1|
|Resolutory Action||none taken : detected after the fact|
Maintenance Human Performance
|Primary Problem||Maintenance Human Performance|
Found that I had misread the instruction on a work card. I had mixed a solution for a 50 gal water tank rather than a 60 gal tank. I had referenced a maintenance manual on the log page which was the same as the method used on a work card, for an alternate method for mixing a disinfectant solution. Reference maintenance manual 38-10-00 page 200. Reference task card X air carrier X B737, ie. I feel that lack of training by company has also played a part in this as a situation.
Original NASA ASRS Text
Title: AN A&P TECHNICIAN MIXES THE INCORRECT RATIO OF WATER TO DISINFECTANT FOR A SOLUTION TO DISINFECT A 50 GAL TANK RATHER THAN THAT REQUIRED FOR A 60 GAL CONTAINER AT ZZZ, US.
Narrative: FOUND THAT I HAD MISREAD THE INSTRUCTION ON A WORK CARD. I HAD MIXED A SOLUTION FOR A 50 GAL WATER TANK RATHER THAN A 60 GAL TANK. I HAD REFED A MAINT MANUAL ON THE LOG PAGE WHICH WAS THE SAME AS THE METHOD USED ON A WORK CARD, FOR AN ALTERNATE METHOD FOR MIXING A DISINFECTANT SOLUTION. REF MAINT MANUAL 38-10-00 PAGE 200. REF TASK CARD X ACR X B737, IE. I FEEL THAT LACK OF TRAINING BY COMPANY HAS ALSO PLAYED A PART IN THIS AS A SIT.
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.