# SDR ASAA1159906

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 20, 2011
- Submitted: June 24, 2011
- Operation: Air carrier
- Aircraft: [N566AS](https://openairdocs.org/aircraft/N566AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35181
- Aircraft time: 16,958 hours, 5,298 cycles
- System (JASC): [4950 · APU Bleed Air System](https://openairdocs.org/jasc/4950)
- Part: Sensor
- Part number: 38762272
- Condition: Failed
- Location: Apu
- Stage of operation: NR
- 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/ASAA1159906

## Discrepancy

APU AIR SHUT OFF WITH SWITCH IN THE ON POSITION NO OTHER INDICATIONS OF ABNORMAL AIR SYSTEM.  RAN APU W/ FULL LOAD ON ELEC & AIR BOTH PACKS ON.  APU BLEED SW. OPS NORMAL W/ GOOD INDICATIONS. TSR ISSUED.  REPLACED APU TOTAL PRESSURE SENSOR PER AMM 49 52 32 OPS AND LEAK CHECK'S GOOD.  ACCOMPLISHED APU BITE C/K PER AMM 49 61 00, NO FAULTS NOTED.

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