# SDR CALA2021120802299

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 7, 2021
- Submitted: December 8, 2021
- Operation: Air carrier
- Aircraft: [N14242](https://openairdocs.org/aircraft/N14242), registered now
- Make and model: Boeing 737824
- Aircraft serial: 28805
- Aircraft time: 69,009 hours, 24,944 cycles
- System (JASC): [2911 · Hydraulic Power Accumulator, Main](https://openairdocs.org/jasc/2911)
- Part: None
- Part number: NA
- Part serial: NA
- Condition: Failed
- Location: Wheel Well
- Stage of operation: TO
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2021120802299

## Discrepancy

ENGINE 2 ENGINE HYD  LOW PRESSURE LT ON NUM2 ENGINE HYD PUMP OFF RER CHK LIST FILTERS, B RETURN FILTER, PTU PRESSURE FILTER. UPDATED MAA CODE FIX USING VENDOR MAA SCREEN DUE HYDRAULIC PUMP FAILURE #2 ENGINE PERFORMED HYDRAULIC B PLEASE CONTACT TOMC BEFORE COMMENCING ANY WORK. SYSTEM HYDRAULIC FLUSH PER AMM 29-11-00-170-801 UP TO STEP 7. C.3E. DRAINED B RESERVOIR, REPLACED B SYSTEM EDP CASE DRAIN FILTER, B EMDP CASE DRAIN FILTER, B BOTH PRESSURE MODULE REMOVED B EMDP ACOUSTIC FILTER . NO METAL PARTICLES FOUND. ACCOPLISHED UP TO STEP 7.C.(7). OF AMM 29-11-00-170-801. INSTALLED NEW ACOUSTIC FILTER. REF 29-11-27-400-801. PERFORMED HYDRAULIC SYSTEM A OR B FLUSHING. LEAK CHK AND CHKS OK.

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