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A B757-300 aircraft #2 engine (rb-211) required both igniter exciters replaced due to failed start. Operations tests failed. Used incorrect effectivity.
| Attributes | |
| ACN | 749405 |
| Time | |
| Date | 200708 |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Aircraft 1 | |
| Controlling Facilities | tower : teb.tower |
| Operator | common carrier : air carrier |
| Make Model Name | B757-300 |
| Operating Under FAR Part | Part 121 |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : powerplant technician : airframe |
| Experience | maintenance technician : 16 |
| ASRS Report | 749405 |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance maintenance problem : improper documentation non adherence : published procedure non adherence : far |
| Independent Detector | other other : 1 |
| Resolutory Action | other |
| Consequence | other |
| Factors | |
| Maintenance | contributing factor : briefing performance deficiency : non compliance with legal requirements performance deficiency : repair |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Aircraft |
| Primary Problem | Maintenance Human Performance |
Narrative:
Aircraft X came in with #2 engine; system #1 ignition on MEL. After pushback the #2 engine would not start. We called for the control center to order us 2 exciter units; which I installed. The operation check failed. At this point it was the end of our shift. In order to avoid paperwork issues with next shift; I signed off the log page as replaced units test fails and opened a new log page. Today I found out in (computer system) that next shift had to replace both exciter units again due to (incorrect) effectivity; which fixed the problem. Next shift found the problem and it was corrected before flight. I should have verified the effectivity; not assume the (controller) ordering the parts would do so.
Original NASA ASRS Text
Title: A B757-300 ACFT #2 ENGINE (RB-211) REQUIRED BOTH IGNITER EXCITERS REPLACED DUE TO FAILED START. OPS TESTS FAILED. USED INCORRECT EFFECTIVITY.
Narrative: ACFT X CAME IN WITH #2 ENG; SYS #1 IGNITION ON MEL. AFTER PUSHBACK THE #2 ENG WOULD NOT START. WE CALLED FOR THE CTL CTR TO ORDER US 2 EXCITER UNITS; WHICH I INSTALLED. THE OP CHK FAILED. AT THIS POINT IT WAS THE END OF OUR SHIFT. IN ORDER TO AVOID PAPERWORK ISSUES WITH NEXT SHIFT; I SIGNED OFF THE LOG PAGE AS REPLACED UNITS TEST FAILS AND OPENED A NEW LOG PAGE. TODAY I FOUND OUT IN (COMPUTER SYS) THAT NEXT SHIFT HAD TO REPLACE BOTH EXCITER UNITS AGAIN DUE TO (INCORRECT) EFFECTIVITY; WHICH FIXED THE PROB. NEXT SHIFT FOUND THE PROB AND IT WAS CORRECTED BEFORE FLT. I SHOULD HAVE VERIFIED THE EFFECTIVITY; NOT ASSUME THE (CTLR) ORDERING THE PARTS WOULD DO SO.
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.