# SDR C2XA01CL105

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 13, 2001
- Submitted: May 15, 2001
- Operation: Air carrier
- Aircraft: N17831
- Make and model: Aerosp ATR 42-320
- Registry model: [Aerosp ATR 42-320](https://openairdocs.org/model/aerospatiale-aeritalia-atr-42-320) (OpenAirDocs)
- Aircraft serial: 185
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: O-Ring
- Part number: NTA152506
- Condition: Damaged
- Location: Hydraulic Sys
- Stage of operation: CR
- How discovered: O
- Nature of condition: K, J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/C2XA01CL105

## Discrepancy

CLE FLIGHT 3812  THE CREW REPORTED THE GREEN AND BLUE HYDRAULIC LOW LEVEL WARNING CAME ON INFLIGHT.  THE CREW DECLARED A EMERGENCY AND LANDED IN CLEVELAND WITHOUT FURTHER INCIDENT.  MAINTENANCE INSPECTED AND FOUND A O-RING LEAKING ON A UNION ON THE BLUE SYSTEM HYDRAULIC FILTER.  THE O-RING WAS REPLACED AND THE SYSTEM WAS SERVICED AND PRESSURE CHECKED.  THE AIRCRAFT WAS RELEASED FOR SERVICE.

---
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.