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A B737-700 returned to the field due to electrical arcing at top of the modified cockpit door. Found galley wiring chaffed on right door support post.
| Attributes | |
| ACN | 561769 |
| Time | |
| Date | 200210 |
| Day | Sat |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B737-700 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : airframe technician : powerplant |
| ASRS Report | 561769 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : inspector |
| Qualification | technician : inspection authority |
| ASRS Report | 561770 |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance other anomaly other |
| Independent Detector | other other : person 5 |
| Resolutory Action | flight crew : diverted to another airport |
| Consequence | other other |
| Factors | |
| Maintenance | contributing factor : schedule pressure contributing factor : work cards performance deficiency : inspection |
| Supplementary | |
| Problem Areas | Aircraft Chart Or Publication |
| Primary Problem | Maintenance Human Performance |
Narrative:
On oct/sat/02, I performed a cockpit door modification per aircraft change order XXXX-xx and accompanying engineering authority/authorized y-yyy-yy without deviation from procedures listed on aircraft change order and engineering authority/authorized. After door modification was complete and no defects were noted associated with the installation of the door modification, aircraft was released for service in an airworthy condition. Aircraft returned to ZZZ due to sparking located at the top r-hand outboard corner of the door post assembly. Upon further investigation, it was found that the R1 galley power wiring was chaffing against the upper r-hand outboard corner of new door post assembly. I complied with the steps as instructed in aco XXXX-xx and ea y-yyy-yy. No instruction is given to inspect or relocate wiring for door post clearance. I feel that the mentioned aco and ea need further review.
Original NASA ASRS Text
Title: A B737-700 RETURNED TO THE FIELD DUE TO ELECTRICAL ARCING AT TOP OF THE MODIFIED COCKPIT DOOR. FOUND GALLEY WIRING CHAFFED ON R DOOR SUPPORT POST.
Narrative: ON OCT/SAT/02, I PERFORMED A COCKPIT DOOR MODIFICATION PER ACFT CHANGE ORDER XXXX-XX AND ACCOMPANYING ENGINEERING AUTH Y-YYY-YY WITHOUT DEV FROM PROCS LISTED ON ACFT CHANGE ORDER AND ENGINEERING AUTH. AFTER DOOR MODIFICATION WAS COMPLETE AND NO DEFECTS WERE NOTED ASSOCIATED WITH THE INSTALLATION OF THE DOOR MODIFICATION, ACFT WAS RELEASED FOR SVC IN AN AIRWORTHY CONDITION. ACFT RETURNED TO ZZZ DUE TO SPARKING LOCATED AT THE TOP R-HAND OUTBOARD CORNER OF THE DOOR POST ASSEMBLY. UPON FURTHER INVESTIGATION, IT WAS FOUND THAT THE R1 GALLEY PWR WIRING WAS CHAFFING AGAINST THE UPPER R-HAND OUTBOARD CORNER OF NEW DOOR POST ASSEMBLY. I COMPLIED WITH THE STEPS AS INSTRUCTED IN ACO XXXX-XX AND EA Y-YYY-YY. NO INSTRUCTION IS GIVEN TO INSPECT OR RELOCATE WIRING FOR DOOR POST CLRNC. I FEEL THAT THE MENTIONED ACO AND EA NEED FURTHER REVIEW.
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.