# SDR ASAA2014030407051

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 4, 2014
- Submitted: March 4, 2014
- Operation: Air carrier
- Aircraft: [N529AS](https://openairdocs.org/aircraft/N529AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35198
- Aircraft time: 15,458 hours, 4,692 cycles
- System (JASC): [4930 · APU Engine Fuel and Control](https://openairdocs.org/jasc/4930)
- Part: Nozzle
- Part number: 38304161
- Condition: Malfunctioned
- Location: Apu
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2014030407051

## Discrepancy

APU CT5ATP EGT DATA SHOWS EGT IS TRENDING TOWARDS ESTABLISHED THRESHOLD. ACFT GROUNDED.  REMOVED ALL APU FUEL NOZZLES, REF AMM 49-31-14-000-801.  INITIATED INSTALLATION OF ALL APU FUEL NOZZLES IAW AMM 49-31-14-400-801.  STEP 3A-3F(G), APU REQUIRES INSTALLTION TEST AND LEAK CHECK OF FUEL NOZZLES.  COMPLETED INSTALLTION OF APU FUEL NOZZLES IAW AMM 49-31-14-400-801, STEP 3G TO END.  NO LEAKS NOTED FROM APU FUEL NOZZLES. APU OPS CHECKS NORMAL.

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