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B737-500 experiences loss of B system electrical hydraulic pump enroute. After landing flight crew shuts down right engine resulting in complete loss of normal braking.
| Attributes | |
| ACN | 745705 |
| Time | |
| Date | 200707 |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B737-500 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : taxi |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| ASRS Report | 745705 |
| Events | |
| Anomaly | aircraft equipment problem : critical non adherence : published procedure |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : unable |
| Consequence | other |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Flight Crew Human Performance Chart Or Publication Aircraft |
| Primary Problem | Aircraft |
Narrative:
We experienced b-electronic pump failure upon flap retraction departing ZZZ. We referred to the flight manual index for this irregularity and there is no reference to just b-electronic pump failure. Maintenance had us try and reset the breaker;' it would not reset. We discussed with dispatch and maintenance and determined that it was safe to continue. Upon taxi in we shut the #2 engine down. As I approached the gate I noticed that the brakes didn't feel right and had to apply extra pressure to stop the aircraft. It was then I realized that we had no b-hyd for the brakes.
Original NASA ASRS Text
Title: B737-500 EXPERIENCES LOSS OF B SYSTEM ELECTRICAL HYD PUMP ENROUTE. AFTER LANDING FLT CREW SHUTS DOWN RIGHT ENGINE RESULTING IN COMPLETE LOSS OF NORMAL BRAKING.
Narrative: WE EXPERIENCED B-ELECTRONIC PUMP FAILURE UPON FLAP RETRACTION DEPARTING ZZZ. WE REFERRED TO THE FLT MANUAL INDEX FOR THIS IRREGULARITY AND THERE IS NO REF TO JUST B-ELECTRONIC PUMP FAILURE. MAINT HAD US TRY AND RESET THE BREAKER;' IT WOULD NOT RESET. WE DISCUSSED WITH DISPATCH AND MAINT AND DETERMINED THAT IT WAS SAFE TO CONTINUE. UPON TAXI IN WE SHUT THE #2 ENG DOWN. AS I APCHED THE GATE I NOTICED THAT THE BRAKES DIDN'T FEEL RIGHT AND HAD TO APPLY EXTRA PRESSURE TO STOP THE ACFT. IT WAS THEN I REALIZED THAT WE HAD NO B-HYD FOR THE BRAKES.
Data retrieved from NASA's ASRS site as of January 2009 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.