# SDR 072242002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 22, 2002
- Submitted: July 22, 2002
- Operation: Air carrier
- Aircraft: N385CW
- Make and model: Cessna 650
- Registry model: [Cessna 650](https://openairdocs.org/model/cessna-650) (OpenAirDocs)
- Aircraft serial: 6500145
- Aircraft time: 7,069 hours, 4,910 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Tee Fitting
- Part number: 621456120
- Condition: Cracked
- Location: Bleed Air
- Part time: 7,069 hours, 4,910 cycles
- Stage of operation: CR
- 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/072242002

## Discrepancy

UNABLE TO MAINTAIN CABIN PRESSURIZATION IN SIGNAL SOURCE.  REPLACED SEVERAL VALVES PARTIALLY CORRECTED PROBLEM FURTHER INSPECTION REVEALED BLEED AIR T-FITTINGS ON RIGHT HAND PRECOOLER INBOARD AND OUTBOARD SIDES CRACKED.  REPLACED BOTH T-FITTINGS, PERFORMED OPERATIONAL CHECK FLIGHT AND FOUND SATISFACTORY.

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