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A B777-200 was dispatched in non compliance with the incorrect satellite data unit installed in the satcom system.
| Attributes | |
| ACN | 493865 |
| Time | |
| Date | 200011 |
| Day | Wed |
| Local Time Of Day | 0001 To 0600 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B777 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance ground : parked |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : fcc technician : powerplant technician : airframe |
| Experience | maintenance avionics : 4 maintenance technician : 11 |
| ASRS Report | 493865 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : airframe technician : powerplant technician : fcc |
| Events | |
| Anomaly | aircraft equipment problem : less severe maintenance problem : improper maintenance non adherence : published procedure |
| Independent Detector | other other : person 2 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other |
| Factors | |
| Maintenance | contributing factor : engineering procedure performance deficiency : installation performance deficiency : logbook entry |
| Supplementary | |
| Problem Areas | Aircraft Chart Or Publication Maintenance Human Performance |
| Primary Problem | Maintenance Human Performance |
Narrative:
On the above date while working on aircraft xyz, I was troubleshooting the satcom system. Problem was narrowed down to a defective satellite data unit. A new unit was ordered and installed per applicable maintenance manual. Software downloads and operations check wre good. Approximately 1 week later, I was notified by the shop mechanic who was repairing the old unit that I had installed the incorrect satellite data unit. Its effectivity was for a modification that had not been accomplished yet. The shop had already contacted our maintenance controllers to let them know about the wrong part. I am assuming that they have got the right part installed.
Original NASA ASRS Text
Title: A B777-200 WAS DISPATCHED IN NON COMPLIANCE WITH THE INCORRECT SATELLITE DATA UNIT INSTALLED IN THE SATCOM SYS.
Narrative: ON THE ABOVE DATE WHILE WORKING ON ACFT XYZ, I WAS TROUBLESHOOTING THE SATCOM SYS. PROB WAS NARROWED DOWN TO A DEFECTIVE SATELLITE DATA UNIT. A NEW UNIT WAS ORDERED AND INSTALLED PER APPLICABLE MAINT MANUAL. SOFTWARE DOWNLOADS AND OPS CHK WRE GOOD. APPROX 1 WK LATER, I WAS NOTIFIED BY THE SHOP MECH WHO WAS REPAIRING THE OLD UNIT THAT I HAD INSTALLED THE INCORRECT SATELLITE DATA UNIT. ITS EFFECTIVITY WAS FOR A MODIFICATION THAT HAD NOT BEEN ACCOMPLISHED YET. THE SHOP HAD ALREADY CONTACTED OUR MAINT CTLRS TO LET THEM KNOW ABOUT THE WRONG PART. I AM ASSUMING THAT THEY HAVE GOT THE RIGHT PART INSTALLED.
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.