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A B737-500 had a deferred item on the hydraulic system control module with an incorrect part number listed in the log. This incorrect part number was ordered and installed.
| Attributes | |
| ACN | 672914 |
| Time | |
| Date | 200509 |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B737-500 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : powerplant technician : airframe |
| Experience | maintenance technician : 15 |
| ASRS Report | 672914 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Experience | maintenance avionics : 10 maintenance technician : 10 |
| ASRS Report | 672932 |
| Events | |
| Anomaly | aircraft equipment problem : less severe maintenance problem : improper maintenance maintenance problem : improper documentation non adherence : published procedure non adherence : far |
| Resolutory Action | none taken : detected after the fact |
| Factors | |
| Maintenance | performance deficiency : logbook entry performance deficiency : non compliance with legal requirements performance deficiency : installation |
| Supplementary | |
| Problem Areas | Chart Or Publication Maintenance Human Performance Aircraft |
| Primary Problem | Maintenance Human Performance |
Narrative:
Due to fault; flight control module was inoperative and placarded. Log was updated with a wrong (unmodified) part number. Unfortunately; maintenance had that part in stock and as a matter of fact that was the only part (modified/unmodified) we had in our stock room for this particular system. I replaced the part and later found out it was unmodified part.
Original NASA ASRS Text
Title: A B737-500 HAD A DEFERRED ITEM ON THE HYD SYS CTL MODULE WITH AN INCORRECT PART NUMBER LISTED IN THE LOG. THIS INCORRECT PART NUMBER WAS ORDERED AND INSTALLED.
Narrative: DUE TO FAULT; FLT CTL MODULE WAS INOP AND PLACARDED. LOG WAS UPDATED WITH A WRONG (UNMODIFIED) PART NUMBER. UNFORTUNATELY; MAINT HAD THAT PART IN STOCK AND AS A MATTER OF FACT THAT WAS THE ONLY PART (MODIFIED/UNMODIFIED) WE HAD IN OUR STOCK ROOM FOR THIS PARTICULAR SYS. I REPLACED THE PART AND LATER FOUND OUT IT WAS UNMODIFIED PART.
Data retrieved from NASA's ASRS site as of January 2009 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.