SDR FDEA201802220469

Service difficulty report · Switch · Boeing 75728A

Difficulty date: February 22, 2018
Submitted: March 2, 2018
Operation: Air carrier
Aircraft: N971FD
Make and model: Boeing 75728A
Aircraft serial: 26277
Aircraft time: 47,970 hours, 15,747 cycles
System (JASC): 2780 · Leading Edge Slat Control System
Part: Switch
Condition: Failed
Location: Slat System
Stage of operation: AP
How discovered: O
Nature of condition: J
Precautionary procedure: A

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

What was found

DURING FINAL APPROACH, RECEIVED A LEADING EDGE SLAT ASSYMETRY EICAS AND ASSOCIATED CUE LIGHT. RAN QRH PROCEDURES, FLAPS 20 LANDING. LANDING NORMAL. R & R THE RT LOSS SENSING SWITCH FOR THE L/E SLATS IAW MM 27-81-41-4. PREFORMED A TEST OF THE RT LOSS SENSING SWITCH. OPS CHECKED NORMAL IAW MM 27-81-41-5.

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