# SDR I5EA2019072306

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 18, 2019
- Submitted: July 24, 2019
- Operation: Air carrier
- Aircraft: [N802TJ](https://openairdocs.org/aircraft/N802TJ), registered now
- Make and model: Boeing 737-4B7
- Registry model: [Boeing 737-4B7](https://openairdocs.org/model/boeing-737-4b7) (OpenAirDocs)
- Aircraft serial: 24874
- Aircraft time: 52,088 hours, 35,102 cycles
- Engine: Ge CFM56*
- Engine time: 45,238 hours, 29,587 cycles
- System (JASC): [3620 · Pneumatic Indicating System](https://openairdocs.org/jasc/3620)
- Part: Sense Line
- Condition: Loose
- Location: Bleed Air Sys
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: B
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/I5EA2019072306

## Discrepancy

DISCREPANCY: FL 310 CLIMBING, CABIN BEGAN TO CLIMB UNCONTROLLABLY, RT PACK WENT TO ZERO.  CORRECTIVE ACTION: PERFORMED TROUBLE SHOOTING FOUND HEAVY PENUMATIC LEAK ON RIGHT ENGINE UNDER PRE COOLER VALVE.  TIGHTEND SCNSING LINE, OPERATIONAL CHECK FOUND NORMAL.  RT PACK WORKING OKAY IAW AMM 36-12-25 AND AMM 71-00-00.

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