SDR AALA202010229007

Service difficulty report · Power Supply · Airbus A321231

Difficulty date: October 21, 2020
Submitted: October 22, 2020
Operation: Air carrier
Aircraft: N913US
Make and model: Airbus A321231
Aircraft serial: 6255
Aircraft time: 20,645 hours, 8,016 cycles
System (JASC): 3350 · Emergency Lighting
Part: Power Supply
Part number: 32146210
Part serial: 160008
Condition: Inoperative
Location: Emergency Lights
Part time: 4,173 hours, 1,635 cycles
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

AIRCRAFT WAS GROUNDED. EMERGENCY POWER SUPPLY UNIT TEST FAILED UNIT 14WL, 15WL AND DECODER ENCODER UNIT-B 300RHH. REMOVED AND REPLACED DECODER ENCODER UNIT-B 300RHH (AALA202010229013), PER AMM 213-73-47, NO HELP. REMOVED AND REPLACED EMERGENCY POWER SUPPLY UNIT ON 14WL (AALA202010229006) AND 15WL. OPERATIONS CHECK GOOD, PER AMM 33-51-00.

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