# SDR 20010319CW001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 8, 2001
- Submitted: March 19, 2001
- Operation: Air carrier
- Aircraft: [N55RB](https://openairdocs.org/aircraft/N55RB), registered now
- Make and model: Cessna 340A
- Registry model: [Cessna 340A](https://openairdocs.org/model/cessna-340a) (OpenAirDocs)
- Aircraft serial: 340A0015
- Engine: Cont TSIO520*
- System (JASC): [3240 · Landing Gear Brake System](https://openairdocs.org/jasc/3240)
- Part: Brake
- Part number: 5300116
- Condition: Leaking
- Location: Rt Brake Line
- Part time: 3,792 hours
- 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/20010319CW001

## Discrepancy

WHILE INVESTIGATING HYDRAULIC LEAK EVIDENCE ON BELLY OF AIRCRAFT, FOUND RIGHT PILOTS BREAK LINE UNDER THE FLOOR, WET.  PRESSURE TEST OF LINE SHOWED PIN HOLE DUE TO CORROSION.  ROUTING OF LINE PUTS IT AGAINST HEAT DUCT HOSE, WHICH APPREARS TO REACT WITH THE 5052-0 LINE CAUSING CORROSION.  NEW LINE INSTALLED AND WRAPPED WITH ANTI-CHAFFE MATERIAL.  SUGGEST INSPECTION OF THIS AREA CLOSELY NEXT INSPECTION.  LINE PROVIDES PARAK PRESSURE TO RIGHT BRAKE AND COULD CAUSE FAILURE OF ONE BRAKE TO WORK PROPERLY.

---
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.