# SDR ASAA1159916

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 22, 2011
- Submitted: June 28, 2011
- Operation: Air carrier
- Aircraft: [N532AS](https://openairdocs.org/aircraft/N532AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 36346
- Aircraft time: 3,736 hours, 1,241 cycles
- System (JASC): [4950 · APU Bleed Air System](https://openairdocs.org/jasc/4950)
- Part: Bleed Air Sys
- Condition: Malfunctioned
- Location: Apu
- Stage of operation: TX
- 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/ASAA1159916

## Discrepancy

ZERO DUCT PRESSURE WHEN APU BLEED SWITCH SWITCHED ON.  STARTED APU AND PERFORMED BLEED AIR VALVE OPERATIONAL CHECK OPS CHECK NORMAL IAW AMM 49 52 11 400 801 STEP F APU BITE TEST SHOW NO MAINTENANCE MESSAGE THERE WAS AN INTERMITTENT FAULT OK FOR SERVICE REF FIM 49 51 00 810 803, NO HISTORY FOR 90 DAYS.

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