# SDR IXXA20120922027O

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 22, 2012
- Submitted: September 24, 2012
- Operation: Air carrier
- Aircraft: [N799AL](https://openairdocs.org/aircraft/N799AL), registered now
- Make and model: Doug DC-8-62F
- Registry model: [Doug DC-8-62F](https://openairdocs.org/model/douglas-dc-8-62f) (OpenAirDocs)
- Aircraft serial: 45922
- Aircraft time: 88,274 hours, 26,642 cycles
- Engine: Pwa JT3D7
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Control Valve
- Condition: Leaking
- Location: Hyd System
- Stage of operation: CR
- How discovered: O
- Nature of condition: K, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/IXXA20120922027O

## Discrepancy

DURING FLIGHT, HYDRAULIC QUANTITY LEVEL STARTED SLOWLY DECREASING.  ACFT RETURNED TO ORIGINATING STATION.  FOUND SLOT CONTROL VALVE LEAKING.  R & R PACKING AND O-RINGS IAW MM 20-60-0 AND 27-80-4.  SYS OPS AND LEAK CHECKS GOOD IAW MM 27-80-0.  SERVICED HYD SYS IAW MM 12-30-1.  RAN ENGINES IAW ATI ENGINE RUN HANDBOOK 70.01. ALL CHECKS GOOD.

---
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.