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An MD80 captain reported low hydraulic pressure on descent; an emergency was declared and a divert planned to a nearby airport with a long runway. Pressure returned to normal during approach; so they proceeded to original destination.
| Attributes | |
| ACN | 895000 |
| Time | |
| Date | 201006 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | MD-80 Series (DC-9-80) Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Descent |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Hydraulic Main System |
| Person 1 | |
| Function | Captain Pilot Not Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
Descending below 18;000 ft turned hydraulic pumps on high and right hydraulic brake pressure stayed at approximately 2100 psi. Decided to divert to [an airport with a longer runway] and declared an emergency. Intercepting the final; pressure returned to 3000 psi; so canceled emergency and got vectors to [original destination]. Landed uneventfully and maintenance bled the hydraulic line.
Original NASA ASRS Text
Title: An MD80 Captain reported low hydraulic pressure on descent; an emergency was declared and a divert planned to a nearby airport with a long runway. Pressure returned to normal during approach; so they proceeded to original destination.
Narrative: Descending below 18;000 FT turned hydraulic pumps on high and right hydraulic brake pressure stayed at approximately 2100 PSI. Decided to divert to [an airport with a longer runway] and declared an emergency. Intercepting the final; pressure returned to 3000 PSI; so canceled emergency and got vectors to [original destination]. Landed uneventfully and maintenance bled the hydraulic line.
Data retrieved from NASA's ASRS site as of April 2012 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.