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Attributes | |
ACN | 1155176 |
Time | |
Date | 201402 |
Local Time Of Day | 0601-1200 |
Place | |
Locale Reference | ZZZ.Airport |
State Reference | US |
Environment | |
Light | Daylight |
Aircraft 1 | |
Make Model Name | A319 |
Operating Under FAR Part | Part 121 |
Flight Phase | Parked |
Flight Plan | IFR |
Component | |
Aircraft Component | Main Gear |
Person 1 | |
Function | Technician |
Qualification | Maintenance Airframe Maintenance Powerplant |
Events | |
Anomaly | Aircraft Equipment Problem Critical Deviation - Procedural Published Material / Policy |
Narrative:
I was assigned to work on an A319 aircraft with the following workload:1) overnight check accomplished 2) electronic flight bag (efb) deactivation by an engineering order (east/O) accomplished. 3) efb on MEL accomplished. 4) brake fan-inoperative on MEL. I started with the overnight check; efb deactivation; and the efb MEL. Performed troubleshooting of the brake fan MEL using troubleshooting manual; step-1 through 4a. Verifying condition of the circuit breakers (C/B) and performed operational check as stated in the tsm. No sign of tripped circuit breaker noted. Tried to reset the circuit breakers a couple of times and did operational check. Brake fan system 1-2 still inoperative (system inop). Performed general visual inspection (gvi) of the left medium large transport and found slightly kinked conduit in the lower torque link area (fwd side). As no additional damage was noted; I updated the MEL by programming the required (left/H medium large transport harness 2M) part for replacement. No evidence of perforation or hole. No evidence of burn/arcing. No broken [wire] strands. Notified by flight safety committee in ZZZ. Logpage updated in ZZZ1 nine days later and removed and replaced (right/right) left medium large transport 2M harness part in ZZZ2 two days after that. [Recommend] to prevent electrical wiring interconnect system (ewis) issues; [have] better conduit routing. Detailed visual inspection (dvi) of the harness on a regular basis [instead of a general visual inspection (gvi). [Add] MEL procedure to collar the circuit breakers. [Add] inspection criteria limitation for the conduit. Cold excessive. Fog. Routine overnight maintenance (ron).
Original NASA ASRS Text
Title: A Line Aircraft Maintenance Technician (AMT) describes his Overnight Check workload that included a General Visual Inspection (GVI) of the left Main Landing Gear (MLG) wire harness on an A319 aircraft. Harness was replaced several days later due to Electrical Wiring Interconnection System (EWIS) issues associated with electrical harness damage.
Narrative: I was assigned to work on an A319 aircraft with the following workload:1) Overnight Check accomplished 2) Electronic Flight Bag (EFB) deactivation by an Engineering Order (E/O) accomplished. 3) EFB on MEL accomplished. 4) Brake Fan-inoperative on MEL. I started with the Overnight Check; EFB deactivation; and the EFB MEL. Performed troubleshooting of the Brake Fan MEL using Troubleshooting Manual; Step-1 through 4a. Verifying condition of the Circuit Breakers (C/B) and performed Operational Check as stated in the TSM. No sign of tripped circuit breaker noted. Tried to reset the circuit breakers a couple of times and did Operational Check. Brake Fan System 1-2 still inoperative (System inop). Performed General Visual Inspection (GVI) of the Left MLG and found slightly kinked conduit in the lower torque link area (fwd side). As no additional damage was noted; I updated the MEL by programming the required (L/H MLG harness 2M) part for replacement. No evidence of perforation or hole. No evidence of burn/arcing. No broken [wire] strands. Notified by Flight Safety Committee in ZZZ. Logpage updated in ZZZ1 nine days later and Removed and Replaced (R/R) Left MLG 2M harness part in ZZZ2 two days after that. [Recommend] to prevent Electrical Wiring Interconnect System (EWIS) issues; [have] better conduit routing. Detailed Visual Inspection (DVI) of the harness on a regular basis [instead of a General visual Inspection (GVI). [Add] MEL procedure to collar the Circuit Breakers. [Add] Inspection criteria limitation for the conduit. Cold excessive. Fog. Routine Overnight Maintenance (RON).
Data retrieved from NASA's ASRS site 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.