SDR AALA202010229013

Service difficulty report · Decoder · 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: Decoder
Part number: Z043H000351A
Part serial: 043H00011697
Condition: Inoperative
Location: Emergency Lights
Part time: 19,095 hours, 7,596 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, PER AMM 213-73-47, NO HELP. REMOVED AND REPLACED EMERGENCY POWER SUPPLY UNIT ON 14WL (AALA202010229006) AND 15WL (AALA202010229007). OPERATIONS CHECK GOOD, PER AMM 33-51-00.

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