# SDR I5PA2023052068803

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 20, 2023
- Submitted: May 30, 2023
- Operation: Air carrier
- Aircraft: [N688SL](https://openairdocs.org/aircraft/N688SL), registered now
- Make and model: Boeing 757230
- Aircraft serial: 25140
- Aircraft time: 101,816 hours, 26,150 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Line
- Part number: 312N3307
- Part serial: NSN
- Condition: Cracked
- Location: Lh Pylon
- Stage of operation: IN
- How discovered: C
- Nature of condition: S
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/I5PA2023052068803

## Discrepancy

FLT NO: N/A (MX FINDING) - L ENG BLEED INOP. DURING HEALTH CHECK, FOUND PNEUMATIC LEAK DUE TO A CRACKED LINE BETWEEN THE LH PRSOV REGULATOR AND THE LH 450 DEGREE SENSOR. THE LINE WAS REPLACED AND THE LEAK CHECK PASSED HOWEVER THE LH ENG BLEED REMAINED INOP DURING OEPRATIONAL CHECKS.

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