# SDR CALA2023062602016

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 24, 2023
- Submitted: June 26, 2023
- Operation: Air carrier
- Aircraft: [N27015](https://openairdocs.org/aircraft/N27015), registered now
- Make and model: Boeing 777224
- Aircraft serial: 28678
- Aircraft time: 107,136 hours, 10,955 cycles
- System (JASC): [3600 · Pneumatic System](https://openairdocs.org/jasc/3600)
- Part: Precooler
- Part number: 23419921
- Part serial: 0375
- Condition: Cracked
- Location: #1 Eng..
- Part time: 57,906 hours, 6,228 cycles
- Stage of operation: IN
- 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/CALA2023062602016

## Discrepancy

EVIDENCE OF LOUD PNEUMATIC LEAK COMING FROM #1 ENGINE EXHAUST. INSPECTD AND FOUND PNEUMATIC LEAK COMING FROM #1 ENG PRE-COOLER. NEEDS PRECOOLER.  PN 2341992-1 APPROX 5-6 INCH CRACK IN #1 ENGINE PRECOOLER.

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