SDR AALA201805239034

Service difficulty report · Power Supply · Airbus A321231

Difficulty date: May 19, 2018
Submitted: May 24, 2018
Operation: Air carrier
Aircraft: N158AN
Make and model: Airbus A321231
Aircraft serial: 7009
Aircraft time: 6,935 hours, 2,687 cycles
System (JASC): 3350 · Emergency Lighting
Part: Power Supply
Condition: Faulty
Location: Cabin
Stage of operation: IN
How discovered: C
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

THE AIRCRAFT WAS GROUNDED. DURING PS CHECK, CIDS 1 FAIL, EPSU 15WL MID L, FAULT. REMOVED AND REPLACED EPSU EMERGENCY POWER SUPPLY UNIT PER AMM 33-51-38-401. CIDS 1 PASSED. OPERATIONS CHECK GOOD. REPLACED 15WL MID L IN CEILING ABOVE L2 DOOR.

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