# SDR CALA2023022700559

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 27, 2023
- Submitted: February 27, 2023
- Operation: Air carrier
- Aircraft: [N439UA](https://openairdocs.org/aircraft/N439UA), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 683
- Aircraft time: 77,042 hours, 31,075 cycles
- System (JASC): [2900 · Hydraulic Power System](https://openairdocs.org/jasc/2900)
- Part: Accumulator
- Part number: 31291130031
- Condition: Broken
- Location: B Hyd Sys
- Stage of operation: CL
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2023022700559

## Discrepancy

ECAM CAUTION MESSAGE - B RSVR LO LVL MESSAGE INOP - HYD CLIMBING THROUGH 10000AIR RETURN EVIDENCE FOR BLUE POWER ACCUMULATOR WITH DIAPHRAGM BROKEN , NIS ADDED MATERIAL REQUIRED.. ISOLATED BLUE POWER ACCUMULATOR FOR THE SYSTEM FOR CHECK FOR MEX, M&E 31-2912-9-9001. LEAKS, REFILLED RESERVOIR OF THE BLUE HYDRAULIC SYSTEM, ADD EMP:U278721 PERFORMED BLUE SYSTEM LEAKS CHECK, PER AMM  29-10-00-863-003-A, ALL OK. ADD EMP:U278721 REPLACED BLUE POWER ACCUMULATOR PER AMM 29-12-42-000-001-A, PERFORMED LEAK CHECK, ALL OK. PARTS USED:  31-2911-3-0031,QTY :1  31-2912-9-9001,QTY :1  00-0585-3-0332,QTY :1  1842144,QTY :1 ADD EMP:U376503 ROTABLE PARTS CHANGE WAS INDICATED - TT # 1842144  SN OFF 9196 ACCUMULATOR, GR  OFF 31-2912-9-9001 9196 ON 31-2912-9-9001 9448

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