# SDR UPS99829633

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 18, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N707UP
- Make and model: Doug DC-8-71F
- Registry model: [Doug DC-8-71F](https://openairdocs.org/model/douglas-dc-8-71f) (OpenAirDocs)
- Aircraft serial: 45907
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Fitting
- Condition: Leaking
- Location: Rudder
- Stage of operation: CR
- Nature of condition: K, J
- Precautionary procedure: B
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UPS99829633

## Discrepancy

INSPECTION TYPE:N/A, AFTER MORE INVESTIGATION FOUND DURING CRUISE ACFT HAD ERRATIC HYD SYSTEM PRESSURE FOLLOWED BY HYD FLUID LOSS DOWN TO STANDPIPE FLUID.  DECLARED EMERGENCY, LANDING IN SDF WAS UNEVENTFUL.  OBTAINED FLAPS 3 5 FOR LDG AND NORMAL GEAR FREE FALL.  MX FOUND HYDRAULIC RUDDER PRESSURE SWITCH LEAKING AT 3 FITTINGS.  UNION SECURED ALL FITTINGS AND REMOVED AND REPLACED O-RING AT UNION BB08473 2. OPS AND LEAK CHECKS GOOD PER MM 29-30-07.

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