# SDR 99ZZZX3634

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 12, 1999
- Submitted: March 26, 2000
- Operation: General aviation
- Filed by: [Aero Controls, LLC, repair station IU6R626N](https://openairdocs.org/faa-repair-station/IU6R626N/aero-controls-llc.md) (OpenAirDocs)
- Make and model: Boeing 737*
- System (JASC): [3243 · Master Cylinder/Brake Valve](https://openairdocs.org/jasc/3243)
- Part: Valve
- Part number: 65445214
- Condition: Cracked
- Location: Brake
- Component: 65445231
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/99ZZZX3634

## Discrepancy

BODY IS CRACKED ABOVE PORT 5 RADIATING OUTWARD FROM ORIFICE PLUG POSSIBLY DUE TO FATIGUE, DEFECT IN THE CASTING, OR OVERSTRESSED AT ASSEMBLY.

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