# SDR CALA2023012300191

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 23, 2023
- Submitted: January 23, 2023
- Operation: Air carrier
- Aircraft: [N26226](https://openairdocs.org/aircraft/N26226), registered now
- Make and model: Boeing 737824
- Aircraft serial: 28935
- Aircraft time: 73,566 hours, 26,736 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Shutoff Valve
- Condition: Faulted
- Location: Nr 2 Engine
- Stage of operation: CL
- 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/CALA2023012300191

## Discrepancy

DUCT PRESSURE INDICATION L AND R POINTERS NOT THE SAME (SPLIT), WITH EITHER POINTER BELOW 18 PSIG DURING TAKEOFF, CLIMB AND CRUI SE; THE ENGINE IS THE BLEED SOURCE LEFT PACK 45 RIGHT PACK 6-8 PSI IN CLIMB OUT REF FIM 36-10 TASK 804 PERFORMED PNEUMATIC HEALTH CHECK, FOUND FAULTY PRSOV ON #2 ENG, REMOVED AND REPLACED PRSOV REF AMM 36-11-04, OPS CHECK GOOD.

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