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B757 flight crew reported generator and hydraulic anomalies at FL380. After consulting with maintenance the APU is started for electrical power and the faulty pump is turned off. Normal landing at destination.
| Attributes | |
| ACN | 833608 |
| Time | |
| Date | 200904 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZLC.ARTCC |
| State Reference | UT |
| Aircraft 1 | |
| Make Model Name | B757-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | AC Generation |
| Person 1 | |
| Function | Pilot Flying |
| Experience | Flight Crew Last 90 Days 150 Flight Crew Total 6000 Flight Crew Type 3000 |
| Person 2 | |
| Function | Captain Pilot Not Flying |
| Experience | Flight Crew Last 90 Days 210 Flight Crew Total 15000 Flight Crew Type 4000 |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
During cruise we got a no land 3 on the asa. We didn't find any other flags and after switching from the C to right autopilot the flag went away. A few minutes later it happened again and this time we went to the status page and found the center hydraulic quantity down to .58 with several status messages. Then we got several EICAS messages and a right gen off and a left hydraulic elec message. After figuring out what was going on we found the right checklists and determined that we could reset the right generator. We got it back on line and kept the APU running. The electric hydraulic pump stayed off. Then a few minutes later; the right generator went off again and we kept it off. After talking to maintenance; we determined there were no circuit breakers out and we decided to press on to smf. We landed without any other problems. We worked well as a team and to the best of my knowledge; followed the checklist and SOP's.
Original NASA ASRS Text
Title: B757 flight crew reported generator and hydraulic anomalies at FL380. After consulting with maintenance the APU is started for electrical power and the faulty pump is turned off. Normal landing at destination.
Narrative: During cruise we got a NO LAND 3 on the ASA. We didn't find any other flags and after switching from the C to R autopilot the flag went away. A few minutes later it happened again and this time we went to the status page and found the center hydraulic quantity down to .58 with several status messages. Then we got several EICAS messages and a R GEN OFF and a L HYD ELEC message. After figuring out what was going on we found the right checklists and determined that we could reset the R generator. We got it back on line and kept the APU running. The electric hydraulic pump stayed off. Then a few minutes later; the R generator went off again and we kept it off. After talking to maintenance; we determined there were no circuit breakers out and we decided to press on to SMF. We landed without any other problems. We worked well as a team and to the best of my knowledge; followed the checklist and SOP's.
Data retrieved from NASA's ASRS site as of April 2012 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.