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A B737-300 in a heavy check had the right elevator tab bushings replaced per an engineering authority/authorized. A second engineering authority/authorized was not issued with the check paperwork and a required inspection signoff was not accomplished.
| Attributes | |
| ACN | 722850 |
| Time | |
| Date | 200701 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B737-300 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : inspector |
| ASRS Report | 722850 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper documentation non adherence : far non adherence : published procedure |
| Independent Detector | other other : 1 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other |
| Factors | |
| Maintenance | contributing factor : work cards contributing factor : engineering procedure contributing factor : manuals performance deficiency : logbook entry performance deficiency : scheduled maintenance performance deficiency : inspection performance deficiency : non compliance with legal requirements |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Chart Or Publication Aircraft Environmental Factor |
| Primary Problem | Chart Or Publication |
| Situations | |
| Publication | CHECK JOB CARD |
Narrative:
Working on an aircraft as quality control inspector for elevator tab check we found a problem with the r-hand elevator tab hinge bushings and fixed the problem. However; the next night when looking over the same paperwork on another aircraft it was noted that on step 3C. We complied with engineering authority/authorized X but did not comply with engineering authority/authorized Y. We did comply with a tab free play and apply witness putty to the bolt heads as well as the system was inspected. However the ea (engineering authority/authorized) was not issued and needs to be complied with. The reason the problem or event happened was the paperwork was/is very hard to read and understand.
Original NASA ASRS Text
Title: A B737-300 IN A HVY CHK HAD THE R ELEVATOR TAB BUSHINGS REPLACED PER AN ENGINEERING AUTH. A SECOND ENGINEERING AUTH WAS NOT ISSUED WITH THE CHK PAPERWORK AND A REQUIRED INSPECTION SIGNOFF WAS NOT ACCOMPLISHED.
Narrative: WORKING ON AN ACFT AS QUALITY CTL INSPECTOR FOR ELEVATOR TAB CHK WE FOUND A PROB WITH THE R-HAND ELEVATOR TAB HINGE BUSHINGS AND FIXED THE PROB. HOWEVER; THE NEXT NIGHT WHEN LOOKING OVER THE SAME PAPERWORK ON ANOTHER ACFT IT WAS NOTED THAT ON STEP 3C. WE COMPLIED WITH ENGINEERING AUTH X BUT DID NOT COMPLY WITH ENGINEERING AUTH Y. WE DID COMPLY WITH A TAB FREE PLAY AND APPLY WITNESS PUTTY TO THE BOLT HEADS AS WELL AS THE SYS WAS INSPECTED. HOWEVER THE EA (ENGINEERING AUTH) WAS NOT ISSUED AND NEEDS TO BE COMPLIED WITH. THE REASON THE PROB OR EVENT HAPPENED WAS THE PAPERWORK WAS/IS VERY HARD TO READ AND UNDERSTAND.
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.