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A B737-300 in climb at FL250 declared an emergency and diverted due to loss of 'a' hydraulic system pressure and quantity. Caused by a failed line.
| Attributes | |
| ACN | 537672 |
| Time | |
| Date | 200202 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : las.airport |
| State Reference | NV |
| Altitude | msl single value : 25000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zla.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B737-300 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : enroute altitude change |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : multi engine pilot : atp pilot : instrument |
| Experience | flight time last 90 days : 180 flight time total : 17000 flight time type : 10000 |
| ASRS Report | 537672 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : 'a' system indications other flight crewa other flight crewb |
| Resolutory Action | flight crew : declared emergency flight crew : diverted to another airport |
| Consequence | other |
| Supplementary | |
| Problem Areas | Aircraft |
| Primary Problem | Aircraft |
Narrative:
At approximately FL250, 'a' system hydraulic pressure failed. QRH emergency procedures were run. ZZZ dispatch and maintenance were notified. Flight attendants were briefed. Emergency was declared with ZLA. Divert was flown to las. Normal descent holding (for manual landing gear extension), and uneventful landing. At gate, hydraulic line was found ruptured with total 'a' system hydraulic loss.
Original NASA ASRS Text
Title: A B737-300 IN CLB AT FL250 DECLARED AN EMER AND DIVERTED DUE TO LOSS OF 'A' HYD SYS PRESSURE AND QUANTITY. CAUSED BY A FAILED LINE.
Narrative: AT APPROX FL250, 'A' SYS HYD PRESSURE FAILED. QRH EMER PROCS WERE RUN. ZZZ DISPATCH AND MAINT WERE NOTIFIED. FLT ATTENDANTS WERE BRIEFED. EMER WAS DECLARED WITH ZLA. DIVERT WAS FLOWN TO LAS. NORMAL DSCNT HOLDING (FOR MANUAL LNDG GEAR EXTENSION), AND UNEVENTFUL LNDG. AT GATE, HYD LINE WAS FOUND RUPTURED WITH TOTAL 'A' SYS HYD 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.