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After robbing a blue hydraulic system pressure switch and installing on an outbound A320; mechanic is later informed he used an incorrect reference when signing off the logbook item.
| Attributes | |
| ACN | 801760 |
| Time | |
| Date | 200808 |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | A320 |
| Operating Under FAR Part | Part 121 |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| ASRS Report | 801760 |
| Events | |
| Anomaly | aircraft equipment problem : less severe maintenance problem : improper documentation non adherence : published procedure non adherence : far |
| Independent Detector | other other : 1 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other |
| Factors | |
| Maintenance | performance deficiency : logbook entry performance deficiency : non compliance with legal requirements |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Aircraft |
| Primary Problem | Maintenance Human Performance |
Narrative:
Aircraft X on arrival into ZZZ had on the hydraulic page a green triangle indication at the top of the blue system schematic with the pump off. All of the other lines for the blue system were amber as is normal. Switch was robbed from aircraft Y at the hangar and I installed that part and svced the blue system reservoir to near the top of the blue band on the remote service panel indicator. The test of the blue system was good. Keeping paperwork organized and discarding the paperwork which didn't apply to the task would have prevented the paperwork from getting mixed up and using an incorrect signoff reference.
Original NASA ASRS Text
Title: AFTER ROBBING A BLUE HYD SYSTEM PRESSURE SWITCH AND INSTALLING ON AN OUTBOUND A320; MECHANIC IS LATER INFORMED HE USED AN INCORRECT REFERENCE WHEN SIGNING OFF THE LOGBOOK ITEM.
Narrative: ACFT X ON ARR INTO ZZZ HAD ON THE HYD PAGE A GREEN TRIANGLE INDICATION AT THE TOP OF THE BLUE SYS SCHEMATIC WITH THE PUMP OFF. ALL OF THE OTHER LINES FOR THE BLUE SYS WERE AMBER AS IS NORMAL. SWITCH WAS ROBBED FROM ACFT Y AT THE HANGAR AND I INSTALLED THAT PART AND SVCED THE BLUE SYS RESERVOIR TO NEAR THE TOP OF THE BLUE BAND ON THE REMOTE SVC PANEL INDICATOR. THE TEST OF THE BLUE SYS WAS GOOD. KEEPING PAPERWORK ORGANIZED AND DISCARDING THE PAPERWORK WHICH DIDN'T APPLY TO THE TASK WOULD HAVE PREVENTED THE PAPERWORK FROM GETTING MIXED UP AND USING AN INCORRECT SIGNOFF REF.
Data retrieved from NASA's ASRS site as of May 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.