# SDR ASAA2021123137056

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 31, 2021
- Submitted: January 4, 2022
- Operation: Air carrier
- Aircraft: [N532AS](https://openairdocs.org/aircraft/N532AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 36346
- Aircraft time: 41,821 hours, 12,318 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Unknown
- Part number: UNKNOWN
- Condition: Unknown
- Location: Unknown
- Stage of operation: TX
- How discovered: V
- Nature of condition: O
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2021123137056

## Discrepancy

WITH BOTH ENGINES RUNNING, BOTH PACKS AUTO ISOLATION VALVE AUTO, BOTH ENGINE BLEED VALVES ON, LEFT DUCT PRESSURE 0 PSI, RIGHT 20 PSI. GROUNDED - YES. PERFORMED B737-800 FIM 36-10 TASK 805 FOUND CONNECTOR ON BLEED AIR REGULATOR DISCONNECTED, RECONNECTED CONNECTOR. PERFORMED ENGINE RUN ALL INDICATIONS NORMAL.

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