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An MD80 on descent declared an emergency and diverted due to loss of hydraulic pressure and quantity from the left main system.
| Attributes | |
| ACN | 384263 |
| Time | |
| Date | 199710 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : mmj |
| State Reference | PA |
| Altitude | msl bound lower : 13000 msl bound upper : 13000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zob |
| Operator | common carrier : air carrier |
| Make Model Name | MD-80 Super 80 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent other other other |
| Route In Use | arrival star : star |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : flight engineer |
| Experience | flight time last 90 days : 200 flight time total : 13000 flight time type : 3000 |
| ASRS Report | 384263 |
| 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 other other : unspecified cockpit |
| Resolutory Action | flight crew : declared emergency none taken : unable other other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
Narrative:
The left hydraulic system developed a leak. Pressure went to zero and quantity decreased. We declared an emergency and entered a holding pattern to take our time going through the hydraulic failure section of the aircraft manual. Specific attention was given to making sure someone was always flying the aircraft. An uneventful approach and landing was made in pit. Callback conversation with reporter revealed the following information: the reporter stated that the left system lost all pressure and quantity and this was a repeat report on hydraulic fluid loss for this airplane. The reporter said maintenance did not report the component that failed causing the fluid loss.
Original NASA ASRS Text
Title: AN MD80 ON DSCNT DECLARED AN EMER AND DIVERTED DUE TO LOSS OF HYD PRESSURE AND QUANTITY FROM THE L MAIN SYS.
Narrative: THE L HYD SYS DEVELOPED A LEAK. PRESSURE WENT TO ZERO AND QUANTITY DECREASED. WE DECLARED AN EMER AND ENTERED A HOLDING PATTERN TO TAKE OUR TIME GOING THROUGH THE HYD FAILURE SECTION OF THE ACFT MANUAL. SPECIFIC ATTN WAS GIVEN TO MAKING SURE SOMEONE WAS ALWAYS FLYING THE ACFT. AN UNEVENTFUL APCH AND LNDG WAS MADE IN PIT. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THAT THE L SYS LOST ALL PRESSURE AND QUANTITY AND THIS WAS A REPEAT RPT ON HYD FLUID LOSS FOR THIS AIRPLANE. THE RPTR SAID MAINT DID NOT RPT THE COMPONENT THAT FAILED CAUSING THE FLUID LOSS.
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.