Service difficulty report · Isolation Valve · Airbus A321271NX

Difficulty date
April 6, 2025
Submitted
April 9, 2025
Operation
Air carrier
Aircraft
N4080J
Make and model
Airbus A321271NX
Aircraft serial
11861
Aircraft time
3,841 hours, 577 cycles
Part
Isolation Valve
Condition
Disengaged
Location
Apu
Stage of operation
NR
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

FLT#523, JFK-LAX. (ETOPS).' APU INOP ( APU SYSTEM A321NEO ETOPS ); ACCOMPLISHED RE-ACTIVATION OF APU FWD ACT ISOLATION VALVE & APU PER AMM 28-28-00-440-005-A. & ALSO ACCOMPLISHED OPS CHECK & GROUND VERIFICATION PER AMM SUBTASK 28-28-71-710-050-A LETTER D. RAN APU PER AMM 49-00-00 OPERATE NORMAL OK FOR SERV. MDDR CLEARED. MX-4 UPDATED.'

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