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Flight crew of B727 encounter loss of system 'a' hydraulic fluid. Abandon approach to run checklists and subsequently land safely.
| Attributes | |
| ACN | 695865 |
| Time | |
| Date | 200604 |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | msl single value : 3000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : zzz.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | B727 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach |
| Route In Use | arrival : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 695865 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | aircraft equipment problem : critical |
| Independent Detector | aircraft equipment other aircraft equipment : hyd quantity gauge other flight crewa |
| Resolutory Action | flight crew : landed in emergency condition flight crew : declared emergency |
| Consequence | other |
| Supplementary | |
| Problem Areas | Aircraft |
| Primary Problem | Aircraft |
Narrative:
On approach; my so noted decreasing hydraulic quantity on the 'a' system. We began lowering flaps and the loss continued. We then lowered the landing gear to preclude having to manually lower them. We were then given clearance for the approach. We still had sufficient quantity to operate the using system. Shortly after commencing the approach and descending on glide path; quantity fell to zero. We then asked to be taken off the approach in order to run the checklists (they are very lengthy). We declared an emergency; finished the checklist and told ATC of our need to stop on the runway; have the gear pinned and have the jet towed clear. With the checklists complete; we began the approach and landed uneventfully. We could have continued the approach since we were correctly configured (flaps 15 degrees vice 30 degrees) for landing; but I felt it wiser to complete the checklists first and then land.
Original NASA ASRS Text
Title: FLT CREW OF B727 ENCOUNTER LOSS OF SYS 'A' HYD FLUID. ABANDON APCH TO RUN CHKLISTS AND SUBSEQUENTLY LAND SAFELY.
Narrative: ON APCH; MY SO NOTED DECREASING HYD QUANTITY ON THE 'A' SYS. WE BEGAN LOWERING FLAPS AND THE LOSS CONTINUED. WE THEN LOWERED THE LNDG GEAR TO PRECLUDE HAVING TO MANUALLY LOWER THEM. WE WERE THEN GIVEN CLRNC FOR THE APCH. WE STILL HAD SUFFICIENT QUANTITY TO OPERATE THE USING SYS. SHORTLY AFTER COMMENCING THE APCH AND DSNDING ON GLIDE PATH; QUANTITY FELL TO ZERO. WE THEN ASKED TO BE TAKEN OFF THE APCH IN ORDER TO RUN THE CHKLISTS (THEY ARE VERY LENGTHY). WE DECLARED AN EMER; FINISHED THE CHKLIST AND TOLD ATC OF OUR NEED TO STOP ON THE RWY; HAVE THE GEAR PINNED AND HAVE THE JET TOWED CLR. WITH THE CHKLISTS COMPLETE; WE BEGAN THE APCH AND LANDED UNEVENTFULLY. WE COULD HAVE CONTINUED THE APCH SINCE WE WERE CORRECTLY CONFIGURED (FLAPS 15 DEGS VICE 30 DEGS) FOR LNDG; BUT I FELT IT WISER TO COMPLETE THE CHKLISTS FIRST AND THEN LAND.
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.