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Air carrier large transport lost hydrualic system-B at cruise altitude. Used airline abnormal procedure and landed at destination airport.
| Attributes | |
| ACN | 158261 |
| Time | |
| Date | 199009 |
| Day | Wed |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : tlh |
| State Reference | FL |
| Altitude | msl bound lower : 29000 msl bound upper : 29000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zjx |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 3 Turbojet Eng |
| Flight Phase | cruise other |
| Route In Use | arrival star : star |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : second officer |
| Qualification | pilot : instrument pilot : flight engineer pilot : atp pilot : commercial |
| Experience | flight time last 90 days : 80 flight time total : 2600 |
| ASRS Report | 158261 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 100 flight time total : 15000 flight time type : 3000 |
| ASRS Report | 158076 |
| Events | |
| Anomaly | aircraft equipment problem : critical |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified |
| Resolutory Action | flight crew : declared emergency flight crew : overcame equipment problem |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
Narrative:
B-hydraulic system failure. Followed abnormal procedure in aircraft manual. Contacted company and center. Uneventful landing and taxi to gate in tpa. During cruise the #1 b-sys pump was off per checklist. First indication was caution lights for b-sys flight controls on forward INS panel. Initial reaction was to turn on #1 pump and refer to abnormal checklist. At that time I noticed b-sys hydraulic quantity had gone to 0. After landing the mechanics found a hydraulic line just behind the left main gear well leaking. I believe this line was downstream of the pumps. Supplemental information from acn 158076: we had a center FAA controller on a fam ride. I think he got a real good experience from the other side of the street.
Original NASA ASRS Text
Title: ACR LGT LOST HYDRUALIC SYSTEM-B AT CRUISE ALT. USED AIRLINE ABNORMAL PROC AND LANDED AT DESTINATION ARPT.
Narrative: B-HYD SYS FAILURE. FOLLOWED ABNORMAL PROC IN ACFT MANUAL. CONTACTED COMPANY AND CENTER. UNEVENTFUL LNDG AND TAXI TO GATE IN TPA. DURING CRUISE THE #1 B-SYS PUMP WAS OFF PER CHKLIST. FIRST INDICATION WAS CAUTION LIGHTS FOR B-SYS FLT CTLS ON FORWARD INS PANEL. INITIAL REACTION WAS TO TURN ON #1 PUMP AND REFER TO ABNORMAL CHKLIST. AT THAT TIME I NOTICED B-SYS HYD QUANTITY HAD GONE TO 0. AFTER LNDG THE MECHS FOUND A HYD LINE JUST BEHIND THE LEFT MAIN GEAR WELL LEAKING. I BELIEVE THIS LINE WAS DOWNSTREAM OF THE PUMPS. SUPPLEMENTAL INFO FROM ACN 158076: WE HAD A CENTER FAA CTLR ON A FAM RIDE. I THINK HE GOT A REAL GOOD EXPERIENCE FROM THE OTHER SIDE OF THE STREET.
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.