 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Flight crew of an large transport lost one of their hydraulic system resulting in an excursion from assigned altitude when the autoplt 'kicked off.'
| Attributes | |
| ACN | 324789 |
| Time | |
| Date | 199512 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : dbl |
| State Reference | CO |
| Altitude | msl bound lower : 25000 msl bound upper : 25000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zdv |
| Operator | common carrier : air carrier |
| Make Model Name | B727 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument pilot : flight engineer pilot : atp |
| Experience | flight time last 90 days : 180 flight time total : 7000 flight time type : 100 |
| ASRS Report | 324789 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | aircraft equipment problem : less severe altitude deviation : excursion from assigned altitude non adherence : clearance other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | flight crew : returned to intended course or assigned course flight crew : overcame equipment problem |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | Pilot Deviation other |
Narrative:
Aircraft suffered a complete 'B' hydraulic system failure. Problem was handled in accordance with company procedures. However, captain elected to continue to dallas fort worth (approximately 750 mi) versus diverting to denver, 150 mi away. First officer felt a divert to denver was warranted. During initial hydraulic failure autoplt disengaged and aircraft climbed 600 ft above assigned altitude. Aircraft was immediately hand flown back to correct altitude. No loss of separation was reported.
Original NASA ASRS Text
Title: FLC OF AN LGT LOST ONE OF THEIR HYD SYS RESULTING IN AN EXCURSION FROM ASSIGNED ALT WHEN THE AUTOPLT 'KICKED OFF.'
Narrative: ACFT SUFFERED A COMPLETE 'B' HYD SYS FAILURE. PROB WAS HANDLED IN ACCORDANCE WITH COMPANY PROCS. HOWEVER, CAPT ELECTED TO CONTINUE TO DALLAS FORT WORTH (APPROX 750 MI) VERSUS DIVERTING TO DENVER, 150 MI AWAY. FO FELT A DIVERT TO DENVER WAS WARRANTED. DURING INITIAL HYD FAILURE AUTOPLT DISENGAGED AND ACFT CLBED 600 FT ABOVE ASSIGNED ALT. ACFT WAS IMMEDIATELY HAND FLOWN BACK TO CORRECT ALT. NO LOSS OF SEPARATION WAS RPTED.
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.