# SDR UIEA2019012503025

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 23, 2019
- Submitted: January 25, 2019
- Operation: Air carrier
- Aircraft: [N1321A](https://openairdocs.org/aircraft/N1321A), registered now
- Make and model: Boeing 767306
- Aircraft serial: 27957
- Aircraft time: 83,393 hours, 19,500 cycles
- System (JASC): [4950 · APU Bleed Air System](https://openairdocs.org/jasc/4950)
- Part: Filter Element
- Condition: Dirty
- 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/UIEA2019012503025

## Discrepancy

INTERMITTENT LOW \APU BLEED PRESSURE 21 PSI IS REQUIRED. OCCURED ON THE SECOND ENGINE START.(<P>REMOVED AND INSPECTED CLEANED SURGE VALVE FILTER ELEMENT IAW AMM 49-53-06, 26PSI. NO PACKS MINIMUM ENGINE START 25 PSI OK FOR SERVICE.<BR /></P>)

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