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jr4076442 Fuel pump

Arrows are showing the fuel leak locations that were found during the investigation.

Problem: Pump Leaking

Failure Mode:

    • Excessive Fuel Leakage

Root Cause:

      • Operators were not acheiving O.E. torque specifications at the joint between the head and outlets.


    • Supplier updated their torque wrenches from digital to “Click” style for the technicians to achieve specified torques.
    • Added an additional leak check and sign off while running on test bench.
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