Service difficulty report · Solenoid Valve · Airbus A321231

Difficulty date
March 25, 2024
Submitted
May 2, 2024
Operation
Air carrier
Aircraft
N161AA
Make and model
Airbus A321231
Aircraft serial
7085
Aircraft time
23,674 hours, 9,279 cycles
Engine
Iae V2533A5
Engine time
23,673 hours, 9,279 cycles
Part
Solenoid Valve
Part number
AA106000
Part serial
RMB004
Condition
Defective
Location
Nr 1 Engine
Part time
23,673 hours, 9,279 cycles
Stage of operation
TO
How discovered
V
Nature of condition
J
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: DURING TAKEOFF PASSING 2000 FT MOMENTARILY RECEIVED AN ENGINE 1 STALL ECAM ASSOCIATED WITH A LOUD BANG AND A SLIGHT ROLL BACK ON THE ENGINE #1 INDICATIONS. THE ENGINE IMMEDIATELY RECOVERED AND ECAM MESSAGE DISAPPEARED. ALL ENGINE INDICATIONS WERE NORMAL. CONTINUED NORMAL ENGINE OPERATION PER THE QRH. **ORIGINAL REPORT WAS AALA202403281422** MAINTENANCE ACCOMPLISHED A BORESCOPE INSPECTION OF THE # 1 ENGINE HPC STAGES 3, 47 AND 7 WITH NO FINDINGS NOTED. MAINTENANCE REPLACED THE FOLLOWING ITEMS PER EA 353059: 7TH STAGE BLEED VALVES 7A, 7B (AALA202405029642) AND 7C (AALA202405026464), 7TH STAGE BLEED VALVE SOELNOIDS 7A (AALA202405024786), 7B (AALA202405024329), 7C (AALA202405028608), 10TH STAGE BLEED VALVE (AALA202405022222), 10TH STAGE BLEED VALVE SOLENOID (AALA202405025237) AND THE TEMPERATURE LIMITATION THERMOSTAT SOLENOID IN THE LEFT PYLON (AALA202405020798). A SATISFACTORY POWER ASSURANCE TEST WAS ACCOMPLISHED PER AMM 71-00-00-710-013 WITH NO DEFECTS NOTED.

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