# SDR ASOA20140722081

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 22, 2014
- Submitted: July 25, 2014
- Operation: Air carrier
- Aircraft: N13997
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 145298
- Aircraft time: 34,021 hours, 26,021 cycles
- System (JASC): [4940 · APU Start/Ignition System](https://openairdocs.org/jasc/4940)
- Part: Start Valve
- Part number: 4950899
- Part serial: 1591
- Condition: Faulty
- Location: Apu
- Part time: 752 hours, 1,206 cycles
- Stage of operation: CL
- How discovered: O
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASOA20140722081

## Discrepancy

THE CREW REPORTED ON CLIMB OUT OF STL, AFTER SWITCHING TO ENGINE BLEEDS THEY NOTICED A STRONG ODOR SIMILAR TO "BURNED FIREWORKS".  MX PERFORMED A GENERAL VISUAL INSPECTION OF NR 1 PACK SYS, PERFORMED HIGH POWER RUNS, AND PERFORMED A VISUAL INSPECTION OF THE RECIRCULATED FANS AND AIR CONDITIONING DUCTS IN CABIN. NO DEFECTS NOTED.  R & R THE APU ANTI-SURGE VALVE WITH OPS CHECK GOOD. ACFT WAS APPROVED FOR RETURN TO SERVICE.

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