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A shop technician reports not accomplishing a full parts inspection on the engine variable guide vane actuating ring.
| Attributes | |
| ACN | 675477 |
| Time | |
| Date | 200510 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B777-200 |
| Operating Under FAR Part | Part 121 |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| ASRS Report | 675477 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : inspector |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance non adherence : far non adherence : published procedure |
| Independent Detector | other other : 2 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other |
| Factors | |
| Maintenance | contributing factor : engineering procedure contributing factor : work cards performance deficiency : inspection performance deficiency : logbook entry performance deficiency : scheduled maintenance performance deficiency : non compliance with legal requirements |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Chart Or Publication Environmental Factor |
| Primary Problem | Maintenance Human Performance |
Narrative:
When we first started to accomplish this service bulletin; engineering and management agreed that the intent was not to inspect the actuating mechanism ring; stating that a level 2 does not suffice a total tear-down in which accomplishing this task would have needed. Also; they were going to issue a variance not requiring the ring to need any inspection. They failed to produce this variance. I am now told they are going to issue this to cover all rings that were not inspected. I would also like to state that I did accomplish part of the service bulletin by replacing the old 2-PIECE bushing with a new single 1-PIECE. Next time; I'll request to see the variance in writing before I continue with maintenance. I was of the understanding that inspection was done on level 4; not on the level 2 in which we are performing in the shop at this time.
Original NASA ASRS Text
Title: A SHOP TECHNICIAN RPTS NOT ACCOMPLISHING A FULL PARTS INSPECTION ON THE ENG VARIABLE GUIDE VANE ACTUATING RING.
Narrative: WHEN WE FIRST STARTED TO ACCOMPLISH THIS SVC BULLETIN; ENGINEERING AND MGMNT AGREED THAT THE INTENT WAS NOT TO INSPECT THE ACTUATING MECHANISM RING; STATING THAT A LEVEL 2 DOES NOT SUFFICE A TOTAL TEAR-DOWN IN WHICH ACCOMPLISHING THIS TASK WOULD HAVE NEEDED. ALSO; THEY WERE GOING TO ISSUE A VARIANCE NOT REQUIRING THE RING TO NEED ANY INSPECTION. THEY FAILED TO PRODUCE THIS VARIANCE. I AM NOW TOLD THEY ARE GOING TO ISSUE THIS TO COVER ALL RINGS THAT WERE NOT INSPECTED. I WOULD ALSO LIKE TO STATE THAT I DID ACCOMPLISH PART OF THE SVC BULLETIN BY REPLACING THE OLD 2-PIECE BUSHING WITH A NEW SINGLE 1-PIECE. NEXT TIME; I'LL REQUEST TO SEE THE VARIANCE IN WRITING BEFORE I CONTINUE WITH MAINT. I WAS OF THE UNDERSTANDING THAT INSPECTION WAS DONE ON LEVEL 4; NOT ON THE LEVEL 2 IN WHICH WE ARE PERFORMING IN THE SHOP AT THIS TIME.
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.