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A B757-200 left landing gear positioning actuator was replaced for damage. Aircraft returned due to additional wiring damage not found.
| Attributes | |
| ACN | 572495 |
| Time | |
| Date | 200301 |
| Day | Thu |
| 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 | B757 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 | 572495 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : inspector |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance maintenance problem : improper documentation non adherence : far non adherence : published procedure |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other other |
| Factors | |
| Maintenance | contributing factor : schedule pressure performance deficiency : inspection performance deficiency : repair performance deficiency : testing |
| Supplementary | |
| Problem Areas | Aircraft Maintenance Human Performance |
| Primary Problem | Maintenance Human Performance |
Narrative:
I was assigned to remove and replace broken gear positioning actuator on l-hand gear. I did so per the maintenance manual and accomplished all required check. However, the following night, I found the same aircraft back in the hangar for wiring problems on the same gear. Apparently, during an earlier jacking operation mishap, some wires were crushed, and no one was aware until crew complaints.
Original NASA ASRS Text
Title: A B757-200 L LNDG GEAR POSITIONING ACTUATOR WAS REPLACED FOR DAMAGE. ACFT RETURNED DUE TO ADDITIONAL WIRING DAMAGE NOT FOUND.
Narrative: I WAS ASSIGNED TO REMOVE AND REPLACE BROKEN GEAR POSITIONING ACTUATOR ON L-HAND GEAR. I DID SO PER THE MAINT MANUAL AND ACCOMPLISHED ALL REQUIRED CHK. HOWEVER, THE FOLLOWING NIGHT, I FOUND THE SAME ACFT BACK IN THE HANGAR FOR WIRING PROBS ON THE SAME GEAR. APPARENTLY, DURING AN EARLIER JACKING OP MISHAP, SOME WIRES WERE CRUSHED, AND NO ONE WAS AWARE UNTIL CREW COMPLAINTS.
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.