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A B737-300 in climb at FL250 declared an emergency and diverted due to loss of B system hydraulic pressure and quantity, caused by a failed fitting.
| Attributes | |
| ACN | 579533 |
| Time | |
| Date | 200304 |
| Day | Mon |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | msl single value : 25000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zfw.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B737-300 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : multi engine pilot : instrument |
| Experience | flight time last 90 days : 275 flight time total : 6000 flight time type : 1500 |
| ASRS Report | 579533 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 150 flight time total : 15000 flight time type : 6300 |
| ASRS Report | 579528 |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : b pressure and quantity ind other flight crewa other flight crewb |
| Resolutory Action | flight crew : diverted to another airport flight crew : declared emergency |
| Consequence | other |
| Supplementary | |
| Problem Areas | Aircraft Flight Crew Human Performance |
| Primary Problem | Aircraft |
Narrative:
I was the PNF on flight from ZZZ. We departed on time. All checklists and system were completed and normal. 20 mins after takeoff, #2 low hydraulic pressure light and master caution illuminated. Read, reviewed, and completed actions directed by checklist. #2 hydraulic leak caused the lights. Advised flight attendants and passenger to remain seated, described situation, and decided to return to ZZZ. Called dispatch, maintenance, and ATC. Declared in-flight emergency with ATC, and asked for emergency vehicles just in case. Completed B system hydraulic failure checklist. Landed uneventfully on runway 31L and taxied to gate. Captain flew a very nice flaps 15 degree ILS approach and landing. Maintenance noted all B system fluid was completely gone, and the tank was empty. Captain's explanation to the passenger and his handling of the emergency was very professionally completed.
Original NASA ASRS Text
Title: A B737-300 IN CLB AT FL250 DECLARED AN EMER AND DIVERTED DUE TO LOSS OF B SYS HYD PRESSURE AND QUANTITY, CAUSED BY A FAILED FITTING.
Narrative: I WAS THE PNF ON FLT FROM ZZZ. WE DEPARTED ON TIME. ALL CHKLISTS AND SYS WERE COMPLETED AND NORMAL. 20 MINS AFTER TKOF, #2 LOW HYD PRESSURE LIGHT AND MASTER CAUTION ILLUMINATED. READ, REVIEWED, AND COMPLETED ACTIONS DIRECTED BY CHKLIST. #2 HYD LEAK CAUSED THE LIGHTS. ADVISED FLT ATTENDANTS AND PAX TO REMAIN SEATED, DESCRIBED SIT, AND DECIDED TO RETURN TO ZZZ. CALLED DISPATCH, MAINT, AND ATC. DECLARED INFLT EMER WITH ATC, AND ASKED FOR EMER VEHICLES JUST IN CASE. COMPLETED B SYS HYD FAILURE CHKLIST. LANDED UNEVENTFULLY ON RWY 31L AND TAXIED TO GATE. CAPT FLEW A VERY NICE FLAPS 15 DEG ILS APCH AND LNDG. MAINT NOTED ALL B SYS FLUID WAS COMPLETELY GONE, AND THE TANK WAS EMPTY. CAPT'S EXPLANATION TO THE PAX AND HIS HANDLING OF THE EMER WAS VERY PROFESSIONALLY COMPLETED.
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.