# SDR CA190622004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 10, 2019
- Submitted: August 17, 2020
- Operation: General aviation
- Make and model: Bombdr DHC8400
- Aircraft time: 10,065 hours
- Engine: Pwc PW150A
- System (JASC): [7210 · Turbine Engine Reduction Gear](https://openairdocs.org/jasc/7210)
- Part: Reduction Gb
- Part number: 312163001
- Condition: Making Metal
- Location: Engine
- Part time: 7,554 hours
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA190622004

## Discrepancy

(CAN) FAULT CODE 939 (RGB CHIP DETECTED) RECEIVED THROUGH THE FAST SYSTEM. LAB ANALYSIS DETERMINED M50 MATERIAL WAS PRESENT. AMM FOLLOW-UP INSPECTION FOUND ADDITIONAL MATERIAL, THE ENGINE WAS REPLACED AND THE AIRCRAFT WAS SUBSEQUENTLY RELEASED FOR SERVICE. RGB WILL BE ROUTED TO THE MANUFACTURER FOR ANALYSIS/REPAIR. (TC# 20190622004)

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