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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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Hydraulic system loss causes widebody transport to pitch up and gain 500 ft.
| Attributes | |
| ACN | 259762 |
| Time | |
| Date | 199312 |
| Day | Fri |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : cys |
| State Reference | WY |
| Altitude | msl bound lower : 37000 msl bound upper : 37500 |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | artcc : zdv |
| Operator | common carrier : air carrier |
| Make Model Name | Widebody, Low Wing, 3 Turbojet Eng |
| Navigation In Use | Other |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 100 flight time total : 12000 flight time type : 1350 |
| ASRS Report | 259762 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | aircraft equipment problem : critical altitude deviation : excursion from assigned altitude non adherence : clearance |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : overcame equipment problem flight crew : returned to intended course or assigned course |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | other |
Narrative:
Loss of #3 hydraulic system. Aircraft was being flown with #2 autoplt. Loss of hydraulic system caused loss of autoplt. Plane pitched up, gaining approximately 500 ft before we could manually return aircraft to level flight at 370. ZDV was advised of problem and cause.
Original NASA ASRS Text
Title: HYD SYS LOSS CAUSES WDB TO PITCH UP AND GAIN 500 FT.
Narrative: LOSS OF #3 HYD SYS. ACFT WAS BEING FLOWN WITH #2 AUTOPLT. LOSS OF HYD SYS CAUSED LOSS OF AUTOPLT. PLANE PITCHED UP, GAINING APPROX 500 FT BEFORE WE COULD MANUALLY RETURN ACFT TO LEVEL FLT AT 370. ZDV WAS ADVISED OF PROB AND CAUSE.
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.