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Large transport flight crew experienced 'a' system hydraulic failure. Dumped fuel, returned to departure airport.
| Attributes | |
| ACN | 124233 |
| Time | |
| Date | 198910 |
| Day | Sun |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : msy |
| State Reference | LA |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zhu tower : msy |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 3 Turbojet Eng |
| Navigation In Use | Other Other |
| Flight Phase | cruise other descent other landing other |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : cfi pilot : instrument |
| Experience | flight time last 90 days : 240 flight time total : 18000 flight time type : 1400 |
| ASRS Report | 124233 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : unable other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | other |
Narrative:
Climbing out of msy 60 mi north we lost 'a' system's hydraulic pressure and fluid. We accomplished all checklists pertaining to this. Dumped 9000 pounds of fuel in specified dump area by ajc, put gear down manually, ran altitude system for flaps, returned to msy. Requested gd emergency equipment, landed smoothly and safely. No evacuate/evacuation. Towed into gate as nose wheel steering inoperative. Communicated well with passenger. No problems. Everything routine. Maintenance told us later a check valve in landing gear blew.
Original NASA ASRS Text
Title: LGT FLT CREW EXPERIENCED 'A' SYSTEM HYDRAULIC FAILURE. DUMPED FUEL, RETURNED TO DEP ARPT.
Narrative: CLIMBING OUT OF MSY 60 MI N WE LOST 'A' SYSTEM'S HYDRAULIC PRESSURE AND FLUID. WE ACCOMPLISHED ALL CHECKLISTS PERTAINING TO THIS. DUMPED 9000 LBS OF FUEL IN SPECIFIED DUMP AREA BY AJC, PUT GEAR DOWN MANUALLY, RAN ALT SYSTEM FOR FLAPS, RETURNED TO MSY. REQUESTED GD EMER EQUIPMENT, LANDED SMOOTHLY AND SAFELY. NO EVAC. TOWED INTO GATE AS NOSE WHEEL STEERING INOP. COMMUNICATED WELL WITH PAX. NO PROBLEMS. EVERYTHING ROUTINE. MAINT TOLD US LATER A CHECK VALVE IN LNDG GEAR BLEW.
Data retrieved from NASA's ASRS site as of August 2007 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.