 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
During a B737 avionics modification; autoland status units were removed and reinstalled. Units self-tested ok but no autoland test was performed.
| Attributes | |
| ACN | 722233 |
| Time | |
| Date | 200612 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Aircraft 1 | |
| Controlling Facilities | tower : sna.tower |
| 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 : lead technician |
| ASRS Report | 722233 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | oversight : supervisor |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper documentation maintenance problem : improper maintenance 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 performance deficiency : training performance deficiency : testing performance deficiency : non compliance with legal requirements performance deficiency : logbook entry |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Aircraft Chart Or Publication |
| Primary Problem | Chart Or Publication |
| Situations | |
| Publication | Winglet Job Cards |
Narrative:
I am a lead technician on B737 winglet modification. I am a structure lead technician and have avionics guys assigned to my crew which I am required to assign work to them. Some of the avionics mechanics that signed off lower minimum performance checks that were not qualified. Have asked supervisor to get an avionics lead over this crew. Contributing factor: nothing noted. I was not aware that the amt's may or may not have been qualified. My shop steward previously provided information to our union leaders to verify the need for additional leads.
Original NASA ASRS Text
Title: DURING A B737 AVIONICS MODIFICATION; AUTOLAND STATUS UNITS WERE REMOVED AND REINSTALLED. UNITS SELF-TESTED OK BUT NO AUTOLAND TEST WAS PERFORMED.
Narrative: I AM A LEAD TECHNICIAN ON B737 WINGLET MODIFICATION. I AM A STRUCTURE LEAD TECHNICIAN AND HAVE AVIONICS GUYS ASSIGNED TO MY CREW WHICH I AM REQUIRED TO ASSIGN WORK TO THEM. SOME OF THE AVIONICS MECHS THAT SIGNED OFF LOWER MINIMUM PERFORMANCE CHKS THAT WERE NOT QUALIFIED. HAVE ASKED SUPVR TO GET AN AVIONICS LEAD OVER THIS CREW. CONTRIBUTING FACTOR: NOTHING NOTED. I WAS NOT AWARE THAT THE AMT'S MAY OR MAY NOT HAVE BEEN QUALIFIED. MY SHOP STEWARD PREVIOUSLY PROVIDED INFO TO OUR UNION LEADERS TO VERIFY THE NEED FOR ADDITIONAL LEADS.
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.