SDR YENA2025122901277

Service difficulty report · Pressure Switch · Airbus A321271NX

Difficulty date: December 27, 2025
Submitted: December 29, 2025
Operation: Air carrier
Aircraft: N2151J
Make and model: Airbus A321271NX
Aircraft serial: 11336
Aircraft time: 10,080 hours, 1,843 cycles
System (JASC): 2913 · Hydraulic Pump (Electric/Engine), Main
Part: Pressure Switch
Part number: 4501310000
Part serial: 26653
Condition: Failed
Location: Hyd Sys
Part time: 177 hours, 34 cycles
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#363, BOS-UVF. (ETOPS), ENG 1 HYD PUMP PRESSURE INDICATES ON WITH ZERO PRESSURE AT AGTE ( ECAM HYD PAGE INDICATIONS 7) PUMPS ); REF TSM 29-11-00-810-806-A, FOUND NO FAULTS WITH WIRING. REMOVED AND REPLACED ENG PUMP PRESSURE SW (1074GK) ENG # 1 IAW AMM 29-11-17. OPS CHK & LEAK CHK GOOD.

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