SDR NACA2019070700035

Service difficulty report · Warning System · Boeing 767323

Difficulty date: July 7, 2019
Submitted: July 8, 2019
Operation: Air carrier
Aircraft: N379CX
Make and model: Boeing 767323
Aircraft serial: 25199
Aircraft time: 99,282 hours, 16,169 cycles
System (JASC): 2781 · Leading Edge Slat Position Indicating System
Part: Warning System
Condition: False Activation
Location: Cockpit
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

DISCREPANCY: LE SLAT ASYMMETRY WHEN FLAPS 5 SELECTED TO 1. PERFORMED QRH ITEMS, EMERGENCY LANDING AT MDSD. CORRECTIVE ACTION: UPON RETURN TO MDSD, LE SLAT ASYM EICAS MESSAGE WENT OUT. FLAPS OPERATED NORMAL. PERFORMED BITE ON PSEU PER FIM 32-09 FAULT TREE 803. ONE STORED FAULT FOR LE SLAT #5 INBD. CLEANED AND INSPECTED PROX SWITCH & TARGET. NO DEFECTS. CONTINUED FIM 27-81 FAULT TREE 80 & ASSOCIATED SECTIONS, NO DEFECTS NOTED. OPERATED FLAPS & SLATS MULTIPLE TIMES, NO EICAS MESSAGES. AIRCRAFT OK FOR SERVICE.