SDR IPXA2024083095805

Service difficulty report · Torque Tube · Boeing 75724APF

Difficulty date: August 28, 2024
Submitted: September 3, 2024
Operation: Air carrier
Aircraft: N418UP
Make and model: Boeing 75724APF
Aircraft serial: 23905
Aircraft time: 35,473 hours, 23,472 cycles
System (JASC): 2750 · Trailing Edge Flap Control System
Part: Torque Tube
Part number: 251N428116251N42
Part serial: NSN
Condition: Unserviceable
Location: Te Flaps
Stage of operation: AP
How discovered: O
Nature of condition: F, J
Precautionary procedure: O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

FLAP ASSYMMETRY TRAILING EDGE DURING APPROACH WHEN FLAPS 20 SELECTED. ACCOMPANIED WITH CORRESPONDING EICAS MSG AND LIGHT. REPLACED TORQUE TUBES 251N4281-16,-17,-18 WITH 251N4281-26,-27,-28. REPLACED BEARING 251N4318-1 WITH 251N4381-6. ACCOMPLISHED PER AMM 27-51-25/201. TEST GOOD. C/W GMM RII REQUIREMENTS 04-02/27, AND B757 MM 27-51-25/201.

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