Service difficulty report · Pressure Switch · Airbus A321271NX

Difficulty date
November 30, 2024
Submitted
December 2, 2024
Operation
Air carrier
Aircraft
N24519
Make and model
Airbus A321271NX
Aircraft serial
11965
Aircraft time
92 hours, 35 cycles
Part
Pressure Switch
Part number
4502310000
Part serial
88448
Condition
Faulted
Location
Hyd System
Part time
76 hours, 28 cycles
Stage of operation
NR
How discovered
O
Nature of condition
J
Precautionary procedure
B

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

What was found

HYD B ELEC PUMP LO PRESS DEBRIEFED CREW, GOT ECAM MESSAGE IN FLIGHT, THEY FOLLOWED PROCEDURES AND TURNED OFF PUMP. WALKED AROUND AIRCRAFT AND FOUND NO LEAKS, CHECKED BLUE QUANTITY AND FOUND WITHIN LIMITS. POST FLGHT REPORT SHOWS LOSS OF SYSTEM PRESSURE AND LOSS OF PUMP PRESSURE BLUE SYSTEM, PERFORMED TSM 29-12-00-810-805-A, REMOVED AND REPLACED SYSTEM PRESSURE SWITCH 2151GN, OPS CHECK AND LEAK CHECK GOOD REF AMM 29-32-12.PARTS USED: 40-0595-3-1985,QTY ADD EMP:U411516 :1 31-2931-9-0001,QTY :1 ROTABLE PARTS CHANGE WAS INDICATED - TT # 1327877 SN OFF 8448 SWITCH, PRESSUR OFF 31-2931-9-0001 8448 ON 31-2931-9-0001 0064

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