 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
A B727 in cruise at FL310 declared an emergency and diverted due to los of 'B' hydraulic system caused by a failed 'B' electric motor pump.
| Attributes | |
| ACN | 510567 |
| Time | |
| Date | 200105 |
| Day | Thu |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| State Reference | WV |
| Altitude | msl single value : 31000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zme.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B727 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : level landing : roll |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : multi engine pilot : instrument pilot : commercial pilot : atp pilot : private |
| Experience | flight time last 90 days : 75 flight time total : 7600 flight time type : 5500 |
| ASRS Report | 510567 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : private pilot : multi engine pilot : instrument pilot : flight engineer pilot : commercial pilot : atp |
| Experience | flight time last 90 days : 200 flight time total : 10000 flight time type : 5000 |
| ASRS Report | 510875 |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : b system press and qty indication other flight crewa other flight crewb other other : person 3 |
| Resolutory Action | flight crew : declared emergency flight crew : diverted to another airport |
| Consequence | other |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Aircraft |
| Primary Problem | Aircraft |
Narrative:
While flying IFR from dca to mem, we lost all system 'B' hydraulics. After following our emergency procedures and declaring an emergency, we landed in mem without incident. The crucial factor in this emergency was landing distance system 'B' pwrs the brakes on the B727. We have a brake interconnect to power the brakes with system 'a' hydraulics. Due to the fact that we could not tell if we actually had working brakes until we landed, we requested, and received, runway 18C in mem -- the longest runway. The interconnect worked as advertised and the landing was uneventful. Supplemental information from can 510875: subsequently, I learned that the 'B' system hydraulic pump failed and caused a total loss of fluid.
Original NASA ASRS Text
Title: A B727 IN CRUISE AT FL310 DECLARED AN EMER AND DIVERTED DUE TO LOS OF 'B' HYD SYS CAUSED BY A FAILED 'B' ELECTRIC MOTOR PUMP.
Narrative: WHILE FLYING IFR FROM DCA TO MEM, WE LOST ALL SYS 'B' HYDS. AFTER FOLLOWING OUR EMER PROCS AND DECLARING AN EMER, WE LANDED IN MEM WITHOUT INCIDENT. THE CRUCIAL FACTOR IN THIS EMER WAS LNDG DISTANCE SYS 'B' PWRS THE BRAKES ON THE B727. WE HAVE A BRAKE INTERCONNECT TO PWR THE BRAKES WITH SYS 'A' HYDS. DUE TO THE FACT THAT WE COULD NOT TELL IF WE ACTUALLY HAD WORKING BRAKES UNTIL WE LANDED, WE REQUESTED, AND RECEIVED, RWY 18C IN MEM -- THE LONGEST RWY. THE INTERCONNECT WORKED AS ADVERTISED AND THE LNDG WAS UNEVENTFUL. SUPPLEMENTAL INFO FROM CAN 510875: SUBSEQUENTLY, I LEARNED THAT THE 'B' SYS HYD PUMP FAILED AND CAUSED A TOTAL LOSS OF FLUID.
Data retrieved from NASA's ASRS site as of July 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.