# SDR CA000323006

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 15, 2000
- Submitted: April 14, 2000
- Operation: Air carrier
- Make and model: Beech A100
- Registry model: [Beech A100](https://openairdocs.org/model/beech-a100) (OpenAirDocs)
- Aircraft time: 15,978 hours
- Engine: Pwa PT6A28
- System (JASC): [3243 · Master Cylinder/Brake Valve](https://openairdocs.org/jasc/3243)
- Part: Snap Ring
- Part number: 5000102
- Condition: Loose
- Location: Brake
- Component: Master Cylinder, Beech, 9038000111
- Stage of operation: IN
- How discovered: V
- Nature of condition: K
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA000323006

## Discrepancy

(CAN) DURING REPLACEMENT OF THE VENT BLOWER ASSY, THE AME LIGHTLY PULLED ON THE PILOT''S LT RUDDER PEDAL.  THE LT BRAKE MASTER CYLINDER SNAP RING LET GO AND THE CYLINDER CAME APART DRAINING ALL THE BRAKE FLUID AND LEAVING THE BRAKE SYSTEM INOPERATIVE. THE SUBMITTER SUSPECTS THE SNAP RING WAS INSTALLED UPSIDE DOWN.  THE SNAP RING IS TAPPERED FOR EASE OF INSTALLATION AND IF IT WAS INSTALLED UPSIDE DOWN, THE TAPER WOULD ALLOW IT TO COME OUT OF THE GROOVE.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.