# SDR ASAA2016052116820

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 21, 2016
- Submitted: May 24, 2016
- Operation: Air carrier
- Aircraft: [N536AS](https://openairdocs.org/aircraft/N536AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35203
- Aircraft time: 17,144 hours, 4,963 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Regulator
- Part number: 1074847
- Part serial: 13500
- Condition: Failed
- Location: Nr 2 Engine
- Part time: 17,165 hours, 4,970 cycles
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2016052116820

## Discrepancy

ENGINEERING REQUEST ACCOMPLISH RT ENGINE BLEED AIR SYS HEALTH CHECK.  ACFT GROUNDED.  PERFORMED T/C NG36NG-00001, ENGINE BLEED AIR SYS HEALTH CHECK ON NR 2 ENGINE UP TO STEP 5- STILL REQUIRES STEP 6- ENGINE BLEED AIR CROSSOVER OPS TEST. R & R PRECOOLER CONTROL VALVE, REF AMM 36-12-02. R & R HIGH STAGE REGULATOR, REF AMM 36-11-07. ACCOMPLISHED BLEED AIR CROSSOVER OPS TEST, ALL BLEED SYS INDICATIONS NORMAL AND WITHIN LIMITS IAW AMM 36-11-00-710-801.  GROUND VERIFICATION ACCOMPLISHED AND PASSED.

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