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An EMB145 had a #2 control display unit fail. Item was incorrectly deferred using MEL chapter 23; later corrected to MEL chapter 34. Logbook entries were not per the gpm.
| Attributes | |
| ACN | 708951 |
| Time | |
| Date | 200602 |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | EMB ERJ 145 ER&LR |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : powerplant technician : airframe |
| ASRS Report | 708951 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : powerplant technician : airframe |
| ASRS Report | 709630 |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : non compliance with mel maintenance problem : improper maintenance non adherence : published procedure non adherence : far |
| Independent Detector | aircraft equipment other aircraft equipment : #2 control display unit other other : 3 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other |
| Factors | |
| Maintenance | contributing factor : manuals performance deficiency : logbook entry performance deficiency : non compliance with legal requirements |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Aircraft Chart Or Publication Environmental Factor |
| Primary Problem | Maintenance Human Performance |
Narrative:
Aircraft called in with a #2 CDU data bus intermittent. Our avionics technician was at the hangar. I was told by my lead technician to go MEL it under 23-5; which I did and received an authority/authorized number by maintenance control. When the avionics technician came back to the line; I asked him about this MEL for this problem because it did not seem right. He told me it should have been MEL'ed under 34-45. The aircraft was here at ZZZ so we both went out to it. We contacted maintenance control to let them know about the problem. We wrote it up in the logbook as being the wrong MEL; and cleared it. We then wrote up the original problem; he changed a computer and signed off the logbook to clear everything out. Normally our avionics technicians work avionics problems. He wasn't here so an a&P had to go deal with the avionics problem (me). I don't normally do avionic jobs on a routine basis.
Original NASA ASRS Text
Title: AN EMB145 HAD A #2 CTL DISPLAY UNIT FAIL. ITEM WAS INCORRECTLY DEFERRED USING MEL CHAPTER 23; LATER CORRECTED TO MEL CHAPTER 34. LOGBOOK ENTRIES WERE NOT PER THE GPM.
Narrative: ACFT CALLED IN WITH A #2 CDU DATA BUS INTERMITTENT. OUR AVIONICS TECHNICIAN WAS AT THE HANGAR. I WAS TOLD BY MY LEAD TECHNICIAN TO GO MEL IT UNDER 23-5; WHICH I DID AND RECEIVED AN AUTH NUMBER BY MAINT CTL. WHEN THE AVIONICS TECHNICIAN CAME BACK TO THE LINE; I ASKED HIM ABOUT THIS MEL FOR THIS PROB BECAUSE IT DID NOT SEEM RIGHT. HE TOLD ME IT SHOULD HAVE BEEN MEL'ED UNDER 34-45. THE ACFT WAS HERE AT ZZZ SO WE BOTH WENT OUT TO IT. WE CONTACTED MAINT CTL TO LET THEM KNOW ABOUT THE PROB. WE WROTE IT UP IN THE LOGBOOK AS BEING THE WRONG MEL; AND CLRED IT. WE THEN WROTE UP THE ORIGINAL PROB; HE CHANGED A COMPUTER AND SIGNED OFF THE LOGBOOK TO CLR EVERYTHING OUT. NORMALLY OUR AVIONICS TECHNICIANS WORK AVIONICS PROBS. HE WASN'T HERE SO AN A&P HAD TO GO DEAL WITH THE AVIONICS PROB (ME). I DON'T NORMALLY DO AVIONIC JOBS ON A ROUTINE BASIS.
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.