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An large transport lost its system 'a' hydraulic pressure. It declared an emergency and landed safely.
| Attributes | |
| ACN | 223381 |
| Time | |
| Date | 199210 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : pmd |
| State Reference | CA |
| Altitude | msl bound lower : 31000 msl bound upper : 31000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zla tower : fpr |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 3 Turbojet Eng |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : commercial pilot : flight engineer pilot : instrument pilot : atp |
| Experience | flight time last 90 days : 50 flight time total : 9000 flight time type : 2500 |
| ASRS Report | 223381 |
| 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 : overcame equipment problem flight crew : declared emergency other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
Narrative:
On climb out of psp (about FL310), 'a' quantity started to drop, then went to 0. 'A' pressure fell soon after (approximately 30 seconds). Ran correct checklists for problem. Emergency declared in case of unforeseen problems. Landed uneventfully at sfo.
Original NASA ASRS Text
Title: AN LGT LOST ITS SYS 'A' HYD PRESSURE. IT DECLARED AN EMER AND LANDED SAFELY.
Narrative: ON CLB OUT OF PSP (ABOUT FL310), 'A' QUANTITY STARTED TO DROP, THEN WENT TO 0. 'A' PRESSURE FELL SOON AFTER (APPROX 30 SECONDS). RAN CORRECT CHKLISTS FOR PROBLEM. EMER DECLARED IN CASE OF UNFORESEEN PROBLEMS. LANDED UNEVENTFULLY AT SFO.
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.