# SDR IPXA2019101877980

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 16, 2019
- Submitted: October 18, 2019
- Operation: Air carrier
- Aircraft: [N328UP](https://openairdocs.org/aircraft/N328UP), registered now
- Make and model: Boeing 767-34AF
- Registry model: [Boeing 767-34AF](https://openairdocs.org/model/boeing-767-34af) (OpenAirDocs)
- Aircraft serial: 27754
- Aircraft time: 55,117 hours, 18,136 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Pneumatic System
- Condition: Fluctuates
- Location: Apu
- Stage of operation: IN
- How discovered: 9
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/IPXA2019101877980

## Discrepancy

INSPECTION TYPE:ETOP**ETOPS FILED OPEN** APU OPS NORMAL PNUE PRESS DROP IS ECCESSIVE WHEN USING APU BLEED AIR FOR ENG START. APU & ENG START NORMAL, DROPS FROM 20 TO 10 PSI PRESS FLUCTUATES FROM 20 TO 10 PSI W/NO LOAD ON APU. DEFERRED.

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