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Bae 3201 aircraft during descent had loss of hydraulic fluid. Flight crew declared an emergency and lowered gear and flaps via the emergency system. Landed without incident. Broken line found in pod area, which reporter says is the third time he has had the problem.
| Attributes | |
| ACN | 391930 |
| Time | |
| Date | 199801 |
| Day | Fri |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : stl |
| State Reference | MO |
| Altitude | msl bound lower : 5000 msl bound upper : 5000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : stl tower : eyw |
| Operator | common carrier : air carrier |
| Make Model Name | Jetstream 32 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : cfi pilot : atp pilot : commercial pilot : instrument |
| Experience | flight time last 90 days : 221 flight time total : 7550 flight time type : 4500 |
| ASRS Report | 391930 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | aircraft equipment problem : critical |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | flight crew : declared emergency none taken : unable |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
Narrative:
While descending into stl in a bae 3201, I noticed both hydraulic pump pressures at zero, indicating a loss of hydraulic fluid. Without hydraulic fluid (pressure) there is no gear, flap, nosewheel steering, and limited braking. We had to pump down the gear and flaps using the emergency standby pump. The brake accumulators bled off fairly quickly, the emergency brake accumulator bled off to zero almost immediately. We declared an emergency and landed without incident. As it turns out, a line in the pod area broke. This is the third time in 3 yrs that I have had this line fail, and it has happened to others in the past few yrs.
Original NASA ASRS Text
Title: BAE 3201 ACFT DURING DSCNT HAD LOSS OF HYD FLUID. FLC DECLARED AN EMER AND LOWERED GEAR AND FLAPS VIA THE EMER SYS. LANDED WITHOUT INCIDENT. BROKEN LINE FOUND IN POD AREA, WHICH RPTR SAYS IS THE THIRD TIME HE HAS HAD THE PROB.
Narrative: WHILE DSNDING INTO STL IN A BAE 3201, I NOTICED BOTH HYD PUMP PRESSURES AT ZERO, INDICATING A LOSS OF HYD FLUID. WITHOUT HYD FLUID (PRESSURE) THERE IS NO GEAR, FLAP, NOSEWHEEL STEERING, AND LIMITED BRAKING. WE HAD TO PUMP DOWN THE GEAR AND FLAPS USING THE EMER STANDBY PUMP. THE BRAKE ACCUMULATORS BLED OFF FAIRLY QUICKLY, THE EMER BRAKE ACCUMULATOR BLED OFF TO ZERO ALMOST IMMEDIATELY. WE DECLARED AN EMER AND LANDED WITHOUT INCIDENT. AS IT TURNS OUT, A LINE IN THE POD AREA BROKE. THIS IS THE THIRD TIME IN 3 YRS THAT I HAVE HAD THIS LINE FAIL, AND IT HAS HAPPENED TO OTHERS IN THE PAST FEW YRS.
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.