SDR IPXA2021090733527

Service difficulty report · Warning Message · Boeing 75724APF

Difficulty date: September 3, 2021
Submitted: September 7, 2021
Operation: Air carrier
Aircraft: N403UP
Make and model: Boeing 75724APF
Aircraft serial: 23725
Aircraft time: 35,629 hours, 24,825 cycles
System (JASC): 2780 · Leading Edge Slat Control System
Part: Warning Message
Condition: False Activation
Location: Slat System
Stage of operation: CL
How discovered: O
Nature of condition: N
Precautionary procedure: A

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

What was found

ATB - VNAV AND AUTOPILOT RETURNED AT 6000FT, BUT NOTICED LE SLAT DISGREE ON EICAS. WENT THROUGH CHECKLIST AND GOT 20 DEGREES AND LANDED. AUTOPILOT WAS NORMALREF; LE SLAT DISAGREE MSG, ACCOMPLISHED FIM 24-81-00-815-803, FIG 104 BLOCKS 1,1A,1B,1C,1D,AND 28. SYSTEM CHECKS OK.

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