# SDR UIEA2013102100532

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 21, 2013
- Submitted: October 22, 2013
- Operation: Air carrier
- Aircraft: [N640GT](https://openairdocs.org/aircraft/N640GT), registered now
- Make and model: Boeing 767-3S1
- Registry model: [Boeing 767-3S1](https://openairdocs.org/model/boeing-767-3s1) (OpenAirDocs)
- Aircraft serial: 25221
- Aircraft time: 73,019 hours, 15,367 cycles
- System (JASC): [4950 · APU Bleed Air System](https://openairdocs.org/jasc/4950)
- Part: Module
- Condition: Loose
- Location: Bleed Air
- Stage of operation: TX
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2013102100532

## Discrepancy

APU BLEED AIR LOW PRESSURE IN ALL MODES (DUCT PRESSURE) ON GROUND. PRESSURE LOW WITH APU AS THE AIR SOURCE.  TIGHTEN BOLTS ON FLOW SENSING MODULE IAW AMM 49-53-05, DUCT PRESSURE. OPS CK NORMAL, REF FIM 49-11, TREE 980, BLK 51.

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