SDR CALA2017110303907

Service difficulty report · Control Unit · Boeing 7878

Difficulty date: November 3, 2017
Submitted: November 4, 2017
Operation: Air carrier
Aircraft: N26906
Make and model: Boeing 7878
Aircraft serial: 34829
Aircraft time: 20,250 hours, 2,646 cycles
System (JASC): 3350 · Emergency Lighting
Part: Control Unit
Condition: Faulty
Location: Cabin
Stage of operation: IN
How discovered: C
Nature of condition: L
Precautionary procedure: K

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

What was found

REF ETASK WIRELESS EMERGENCY LIGHTING SYSTEM WCU BATTERY CARD NUMBER 78-3350-1-9800, WORK IS COMPLETE UP TO ITEM 1E. ON CONFIG PAGE SHOWS WCU REPORTING 26, AND WCU CONFIGURED TO 27. SUSPECT WC U-10 M3351070 LOCATED ABOVE SEAT 2D IN STOW BIN. PARTS COMING. REPLACED WCU AT DOOR 1L, COMPLETED ETASK CARD, OPS CHK OK. VERIFIED INSTALLATION AND OP CHECK

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