SDR CALA2015062900532

Service difficulty report · Switch · Boeing 757224

Difficulty date: June 27, 2015
Submitted: June 29, 2015
Operation: Air carrier
Aircraft: N21108
Make and model: Boeing 757224
Aircraft serial: 27298
Aircraft time: 78,353 hours, 19,763 cycles
System (JASC): 2781 · Leading Edge Slat Position Indicating System
Part: Switch
Condition: Defective
Location: Le Slat
Stage of operation: CR
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

CLIMBING DURING FL 190 GOT LE SLAT ASYM EICAS MSG WITH A LE DISCRETE LIGHT. RAN THE CHECKLIST & COMPLIED. CLEARED OFF AT FL 2101 THEN WENT BACK DOWN TO FL 200 235 KTS HAD NO CONTROLLABILITY PROBLEMS TS IAW FIM 27-5100-815-805. FOUND FAULT SLAT LOSS MSG 317 & 337 TROUBLESHOOT IAW WDM 27-81-31. FOUND BAD SLAT LOSS SENSING SWITCH S10340. R & R SWITCH IAW MM 27-81-41. OPERATIONS CHECKED GOOD.