SDR AALA202107071179

Service difficulty report · Connector · Airbus A321231

Difficulty date: July 3, 2021
Submitted: July 7, 2021
Operation: Air carrier
Aircraft: N559UW
Make and model: Airbus A321231
Aircraft serial: 5292
Aircraft time: 28,040 hours, 11,202 cycles
System (JASC): 3397 · Light System Wiring
Part: Connector
Condition: Inoperative
Location: Emergency Lights
Stage of operation: IN
How discovered: 9
Nature of condition: O
Precautionary procedure: K

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

What was found

AIRCRAFT IN BASE MAINTENANCE: CABIN INTERCOMMUNICATION DATA SYSTEM EMERGENCY POWER SUPPLY UNIT TEST FAILS. DISCONNECTED/RECONNECTED EMERGENCY EXIT POWER SUPPLIES 11, 14, AND 15 PER A321 TSM 33-51-00, PERFORMED CABIN INTERCOMMUNICATION DATA SYSTEM EMERGENCY POWER SUPPLY UNIT BUILT IN TEST EQUIPMENT CHECK PER A321 AMM 33-51-00, BUILT IN TEST EQUIPMENT CHECK PASSES.

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