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A B727-200 in cruise at FL280 declared an emergency and diverted due to a complete loss of 'a' system hydraulic pressure and quantity caused by a broken spoiler actuator return line.
| Attributes | |
| ACN | 389553 |
| Time | |
| Date | 199712 |
| Day | Wed |
| Local Time Of Day | 0001 To 0600 |
| Place | |
| Locale Reference | atc facility : tol |
| State Reference | OH |
| Altitude | msl bound lower : 28000 msl bound upper : 28000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 3 Turbojet Eng |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise other other other |
| Route In Use | enroute airway : zob |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : second officer |
| Qualification | other other : other pilot : private pilot : flight engineer |
| Experience | flight time last 90 days : 120 flight time total : 9000 flight time type : 300 |
| ASRS Report | 389553 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | other flight crewa other other : unspecified cockpit |
| Resolutory Action | flight crew : declared emergency other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
Narrative:
Lost 'a' system hydraulic quantity at cruise flight. Isolating various system, unable to regain system operation. Emergency declared with ZOB. Emergency checklists accomplished as per fom. Approach and landing uneventful. Note: flight originated from ewr to tol. Flight experienced moderate turbulence prior to loss of hydraulic (may have been a factor). Maintenance discovered leaking spoiler return line.
Original NASA ASRS Text
Title: A B727-200 IN CRUISE AT FL280 DECLARED AN EMER AND DIVERTED DUE TO A COMPLETE LOSS OF 'A' SYS HYD PRESSURE AND QUANTITY CAUSED BY A BROKEN SPOILER ACTUATOR RETURN LINE.
Narrative: LOST 'A' SYS HYD QUANTITY AT CRUISE FLT. ISOLATING VARIOUS SYS, UNABLE TO REGAIN SYS OP. EMER DECLARED WITH ZOB. EMER CHKLISTS ACCOMPLISHED AS PER FOM. APCH AND LNDG UNEVENTFUL. NOTE: FLT ORIGINATED FROM EWR TO TOL. FLT EXPERIENCED MODERATE TURB PRIOR TO LOSS OF HYD (MAY HAVE BEEN A FACTOR). MAINT DISCOVERED LEAKING SPOILER RETURN LINE.
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.