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A B737-800 had an engineering change order to replace the inboard elevator balance panel seals. Technician failed to add part numbers to new seals.
| Attributes | |
| ACN | 555275 |
| Time | |
| Date | 200205 |
| Day | Fri |
| 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 | B737 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : airframe technician : powerplant |
| ASRS Report | 555275 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | oversight : supervisor |
| Events | |
| Anomaly | maintenance problem : improper documentation maintenance problem : improper maintenance non adherence : far non adherence : published procedure |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other |
| Factors | |
| Maintenance | contributing factor : engineering procedure contributing factor : schedule pressure performance deficiency : non compliance with legal requirements performance deficiency : installation performance deficiency : scheduled maintenance |
| Supplementary | |
| Problem Areas | Chart Or Publication Maintenance Human Performance Aircraft |
| Primary Problem | Maintenance Human Performance |
Narrative:
This was the first time I was accomplishing this engineering change order and misunderstood what page 13 item 9 was asking. I did not resident (renumber or rather write) the new part number on the inboard balance panel seals. As soon as the supervisor brought this to my attention, I realized what I failed to accomplish, that is, writing the new part number on the seals.
Original NASA ASRS Text
Title: A B737-800 HAD AN ENGINEERING CHANGE ORDER TO REPLACE THE INBOARD ELEVATOR BAL PANEL SEALS. TECHNICIAN FAILED TO ADD PART NUMBERS TO NEW SEALS.
Narrative: THIS WAS THE FIRST TIME I WAS ACCOMPLISHING THIS ENGINEERING CHANGE ORDER AND MISUNDERSTOOD WHAT PAGE 13 ITEM 9 WAS ASKING. I DID NOT RESIDENT (RENUMBER OR RATHER WRITE) THE NEW PART NUMBER ON THE INBOARD BAL PANEL SEALS. AS SOON AS THE SUPVR BROUGHT THIS TO MY ATTN, I REALIZED WHAT I FAILED TO ACCOMPLISH, THAT IS, WRITING THE NEW PART NUMBER ON THE SEALS.
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.