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Return land by a B767-300 flight crew when the right hydraulic system develops a fluid loss of unknown origin after departure lax.
| Attributes | |
| ACN | 623316 |
| Time | |
| Date | 200407 |
| Day | Tue |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : zla.artcc |
| State Reference | CA |
| Altitude | msl bound lower : 18000 msl bound upper : 29000 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zla.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B767-300 and 300 ER |
| 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 : instrument pilot : multi engine pilot : commercial |
| ASRS Report | 623316 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | oversight : pic |
| Events | |
| Anomaly | aircraft equipment problem : critical |
| Independent Detector | aircraft equipment other aircraft equipment : hyd eicas msg other other : 7 |
| Resolutory Action | controller : provided flight assist controller : issued new clearance flight crew : diverted to another airport flight crew : landed as precaution |
| Consequence | other other Other |
| Supplementary | |
| Problem Areas | Aircraft Passenger Human Performance |
| Primary Problem | Aircraft |
Narrative:
During climb out on the lax 5 departure, lax -- upon completion of the FL180 takeoff/climb checklist -- we received a right hydraulic quantity EICAS message. Captain called for QRH and we selected status page to note a decrease (rapid) in right hydraulic quantity. We agreed that the rate of loss would lead to a total loss of right hydraulic quantity and proceeded with the right hydraulic pressure loss checklist and turned the (both) right hydraulic pumps off (stopping the loss of right hydraulic quantity). We contacted maintenance and operations to inform them of our hydraulic situation and to inform them of our intention to return to lax. We additionally informed ZLA of our intentions/aircraft status and requested a return to lax (during checklist/troubleshooting we leveled at FL290 and slowed to 300 KTS). We were cleared to return to lax via the pdz 4 arrival. We determined that we were indeed under the maximum landing weight for the aircraft and continued to an uneventful approach and landing. During passenger deplaning, a gentleman noted that during taxi our (flight control check), a small 'blast' (sic) of what appeared to be hydraulic fluid, sprayed out from under one of the right outboard spoilers. During the postflt walkaround we noted a puddle of hydraulic fluid under the mid section of the right wing. Supplemental information from acn 623974: 1 hour 27 mins later, we returned to lax, the aircraft went OTS. We boarded another B767-300 and departed.
Original NASA ASRS Text
Title: RETURN LAND BY A B767-300 FLT CREW WHEN THE R HYD SYS DEVELOPS A FLUID LOSS OF UNKNOWN ORIGIN AFTER DEP LAX.
Narrative: DURING CLBOUT ON THE LAX 5 DEP, LAX -- UPON COMPLETION OF THE FL180 TKOF/CLB CHKLIST -- WE RECEIVED A R HYD QUANTITY EICAS MESSAGE. CAPT CALLED FOR QRH AND WE SELECTED STATUS PAGE TO NOTE A DECREASE (RAPID) IN R HYD QUANTITY. WE AGREED THAT THE RATE OF LOSS WOULD LEAD TO A TOTAL LOSS OF R HYD QUANTITY AND PROCEEDED WITH THE R HYD PRESSURE LOSS CHKLIST AND TURNED THE (BOTH) R HYD PUMPS OFF (STOPPING THE LOSS OF R HYD QUANTITY). WE CONTACTED MAINT AND OPS TO INFORM THEM OF OUR HYD SIT AND TO INFORM THEM OF OUR INTENTION TO RETURN TO LAX. WE ADDITIONALLY INFORMED ZLA OF OUR INTENTIONS/ACFT STATUS AND REQUESTED A RETURN TO LAX (DURING CHKLIST/TROUBLESHOOTING WE LEVELED AT FL290 AND SLOWED TO 300 KTS). WE WERE CLRED TO RETURN TO LAX VIA THE PDZ 4 ARR. WE DETERMINED THAT WE WERE INDEED UNDER THE MAX LNDG WT FOR THE ACFT AND CONTINUED TO AN UNEVENTFUL APCH AND LNDG. DURING PAX DEPLANING, A GENTLEMAN NOTED THAT DURING TAXI OUR (FLT CTL CHK), A SMALL 'BLAST' (SIC) OF WHAT APPEARED TO BE HYD FLUID, SPRAYED OUT FROM UNDER ONE OF THE R OUTBOARD SPOILERS. DURING THE POSTFLT WALKAROUND WE NOTED A PUDDLE OF HYD FLUID UNDER THE MID SECTION OF THE R WING. SUPPLEMENTAL INFO FROM ACN 623974: 1 HR 27 MINS LATER, WE RETURNED TO LAX, THE ACFT WENT OTS. WE BOARDED ANOTHER B767-300 AND DEPARTED.
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.