Service difficulty report · Icu · Airbus A321253N

Difficulty date
June 15, 2022
Submitted
June 17, 2022
Operation
Air carrier
Aircraft
N927VA
Make and model
Airbus A321253N
Aircraft serial
08126
Aircraft time
12,827 hours, 3,373 cycles
Engine
Cfmint LEAP1A33
Part
Icu
Part number
612C3501503
Part serial
WWD00448
Condition
Failed
Location
Eng1
Part time
12,827 hours, 3,373 cycles
Stage of operation
CL
How discovered
V
Nature of condition
J
Precautionary procedure
A

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

What was found

ENG 1 REVERSER UNLOCKED IN FLIGHT GROUNDED - YES. VERIFIED ACCOMPLISHMENT OF DEACTIVATION OF BOTH THE HYD INHIBITION AND MECHANICAL INHIBITION OF #1 REVERSER MEL ON L/P 60461158. BOTH CURRENTLY DEACTIVATED AS PER THE MEL. ASA 16330 INTERMITTANT 2424-TR TLS UNLOCK FAULT. OCCURS ON A AND B CHANNELS DURING ICV TEST. SWAPPED CONNECTORS DURING TESTING AND FAULTS ON BOTH A AND B CHANNELS WITH SENSORS CONNECTED TO OPPOSITE HARNESSES REF TSM TASK 78-37-00-810-839-A AT STEP 4 "FAULT ISOLATION" B.(2).(B).1, TIE-IN TO DAYSHIFT. ASA 98500 06/16/2022 SECURED EXTERNAL PWR. ACCOMP. CH.A AND CH. B TLS WIRING CHECKES, ALL WITHIN LIMITS UNDER 2.0 OHMS. GVI OF CONNECTORS OK REF TSM 78-37-00-810-83-A AND 840-A. E OIE 60950 06/16/2022. INITIATED MIG 2C 40-0037503. REMOVED AND REPLACED #1 ENG ICU REF MM 78-31-51. LK AND OPS CKS GOOD. JGENNETT 53180 06/16/2022 MIG 2C 40-0037503 CLOSED. T/R REACTIVATED REF MM 78-30-00

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