# SDR ASAA2013071295583

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 12, 2013
- Submitted: July 16, 2013
- Operation: Air carrier
- Aircraft: [N594AS](https://openairdocs.org/aircraft/N594AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35191
- Aircraft time: 20,394 hours, 6,282 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Bleed Air Sys
- Condition: Malfunctioned
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2013071295583

## Discrepancy

ON CLIMBOUT, FL 270, NOTICED A DUCT SPLIT OF 21PSI, LT 25 PSI, RT 46PSI WITH N1S 100.2. PRESSURIZATION WAS NORMAL.  ADDITIONAL INFO AT CRUISE FLT (FL 380 - N1S 88.6).  THERE WAS NO DUCT SPLIT. ON DESCENT BOTH DUCT PRESSURES READ 25PSI AND NO SPLIT.  ACFT GROUNDED. OPEN.

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