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A B737-300 was dispatched in non compliance with a right aileron balance panel seal and seal retainer not installed. Job card omitted seal and retainer removal and installation.
| Attributes | |
| ACN | 563334 |
| Time | |
| Date | 200210 |
| Day | Thu |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Aircraft 1 | |
| Controlling Facilities | tower : abq.tower |
| 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 : technician |
| Qualification | technician : powerplant technician : airframe |
| Experience | maintenance technician : 13 |
| ASRS Report | 563334 |
| Events | |
| Anomaly | aircraft equipment problem : critical 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 : manuals contributing factor : work cards performance deficiency : inspection performance deficiency : installation performance deficiency : logbook entry performance deficiency : non compliance with legal requirements |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Chart Or Publication Aircraft |
| Primary Problem | Chart Or Publication |
Narrative:
I partially installed a r-hand aileron on aircraft X at ZZZ maintenance center. Maintenance was performed step-by-step per a scheduled non-routine job instruction card. The task included the installation of a balance panel hinge seal, retainer and screws. These parts were later found at our facility after the aircraft was released. The aircraft was then grounded. There is a step in this job card that comes after my work was accomplished that instructs the removal of the hinge pin (not seal/retainer) for the action of 'clearing the balance bay to close.' this I suspect is where the items were removed by another technician and never reinstalled.
Original NASA ASRS Text
Title: A B737-300 WAS DISPATCHED IN NON COMPLIANCE WITH A R AILERON BAL PANEL SEAL AND SEAL RETAINER NOT INSTALLED. JOB CARD OMITTED SEAL AND RETAINER REMOVAL AND INSTALLATION.
Narrative: I PARTIALLY INSTALLED A R-HAND AILERON ON ACFT X AT ZZZ MAINT CTR. MAINT WAS PERFORMED STEP-BY-STEP PER A SCHEDULED NON-ROUTINE JOB INSTRUCTION CARD. THE TASK INCLUDED THE INSTALLATION OF A BAL PANEL HINGE SEAL, RETAINER AND SCREWS. THESE PARTS WERE LATER FOUND AT OUR FACILITY AFTER THE ACFT WAS RELEASED. THE ACFT WAS THEN GNDED. THERE IS A STEP IN THIS JOB CARD THAT COMES AFTER MY WORK WAS ACCOMPLISHED THAT INSTRUCTS THE REMOVAL OF THE HINGE PIN (NOT SEAL/RETAINER) FOR THE ACTION OF 'CLRING THE BAL BAY TO CLOSE.' THIS I SUSPECT IS WHERE THE ITEMS WERE REMOVED BY ANOTHER TECHNICIAN AND NEVER REINSTALLED.
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.