Narrative:

Aircraft X remained overnight with a scheduled service check and due to other discrepancies that were documented and worked on. Extensive preventive maintenance was complied with on that night. However; while the maintenance discrepancy was being adhered to; the maintenance technicians noticed a hydraulic leak coming from the r-hand elevator area and documented it in the aircraft logbook for further evaluate. Once they completed the first discrepancy that was being worked they proceeded to investigate the hydraulic leak coming from the r-hand elevator control valve area and suspected the valve to be leaking. Since the r-hand elevator control valve was suspected leaking; we immediately removed the aircraft from revenue service until we could get a control valve for replacement. Since no parts were in hand and no maintenance had been complied with due to this discrepancy; I immediately began working the removal of the valve with the knowledge of the logbook discrepancy entered earlier. Once the task was completed I had another technician rii the installation per amm with no other discrepancies noted and we proceeded in signing the aircraft logbook and returning the aircraft back into revenue service. Since I started the task from the beginning of the removal process and aware of one write up due to the evidence of the leak; I did not review a turnover sheet or request one from the previous shift techs believing that it was the only discrepancy left. However; one of the previous shift techs did document that the r-hand hydraulic system needed servicing even though it was not required. I had also verified the quantity level upon completion of the task which the amm does not ask for either and since it's also standard practice. The breakdown was due to the following: 1) a communication between the previous shift techs and this shift supervisor; since I had glanced at the logbook and only reviewed the item stating the suspected hydraulic leak. 2) a shift turnover report was not complied with due to no partial steps being complied with and I never flipped the cardboard divider in the logbook to look at a clean log page prior to dispatching the aircraft. 3) the previous shift techs involved did not comply with the repair of this discrepancy either.

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Original NASA ASRS Text

Title: A B717-200 WAS DISPATCHED WITH AN OPEN AND UNANSWERED LOGBOOK RPT. R HYD SYS REQUIRED SVCING. SVCED PRIOR TO DISPATCH BUT NOT CLRED.

Narrative: ACFT X REMAINED OVERNIGHT WITH A SCHEDULED SVC CHK AND DUE TO OTHER DISCREPANCIES THAT WERE DOCUMENTED AND WORKED ON. EXTENSIVE PREVENTIVE MAINT WAS COMPLIED WITH ON THAT NIGHT. HOWEVER; WHILE THE MAINT DISCREPANCY WAS BEING ADHERED TO; THE MAINT TECHNICIANS NOTICED A HYD LEAK COMING FROM THE R-HAND ELEVATOR AREA AND DOCUMENTED IT IN THE ACFT LOGBOOK FOR FURTHER EVAL. ONCE THEY COMPLETED THE FIRST DISCREPANCY THAT WAS BEING WORKED THEY PROCEEDED TO INVESTIGATE THE HYD LEAK COMING FROM THE R-HAND ELEVATOR CTL VALVE AREA AND SUSPECTED THE VALVE TO BE LEAKING. SINCE THE R-HAND ELEVATOR CTL VALVE WAS SUSPECTED LEAKING; WE IMMEDIATELY REMOVED THE ACFT FROM REVENUE SVC UNTIL WE COULD GET A CTL VALVE FOR REPLACEMENT. SINCE NO PARTS WERE IN HAND AND NO MAINT HAD BEEN COMPLIED WITH DUE TO THIS DISCREPANCY; I IMMEDIATELY BEGAN WORKING THE REMOVAL OF THE VALVE WITH THE KNOWLEDGE OF THE LOGBOOK DISCREPANCY ENTERED EARLIER. ONCE THE TASK WAS COMPLETED I HAD ANOTHER TECHNICIAN RII THE INSTALLATION PER AMM WITH NO OTHER DISCREPANCIES NOTED AND WE PROCEEDED IN SIGNING THE ACFT LOGBOOK AND RETURNING THE ACFT BACK INTO REVENUE SVC. SINCE I STARTED THE TASK FROM THE BEGINNING OF THE REMOVAL PROCESS AND AWARE OF ONE WRITE UP DUE TO THE EVIDENCE OF THE LEAK; I DID NOT REVIEW A TURNOVER SHEET OR REQUEST ONE FROM THE PREVIOUS SHIFT TECHS BELIEVING THAT IT WAS THE ONLY DISCREPANCY LEFT. HOWEVER; ONE OF THE PREVIOUS SHIFT TECHS DID DOCUMENT THAT THE R-HAND HYD SYS NEEDED SVCING EVEN THOUGH IT WAS NOT REQUIRED. I HAD ALSO VERIFIED THE QUANTITY LEVEL UPON COMPLETION OF THE TASK WHICH THE AMM DOES NOT ASK FOR EITHER AND SINCE IT'S ALSO STANDARD PRACTICE. THE BREAKDOWN WAS DUE TO THE FOLLOWING: 1) A COM BTWN THE PREVIOUS SHIFT TECHS AND THIS SHIFT SUPVR; SINCE I HAD GLANCED AT THE LOGBOOK AND ONLY REVIEWED THE ITEM STATING THE SUSPECTED HYD LEAK. 2) A SHIFT TURNOVER RPT WAS NOT COMPLIED WITH DUE TO NO PARTIAL STEPS BEING COMPLIED WITH AND I NEVER FLIPPED THE CARDBOARD DIVIDER IN THE LOGBOOK TO LOOK AT A CLEAN LOG PAGE PRIOR TO DISPATCHING THE ACFT. 3) THE PREVIOUS SHIFT TECHS INVOLVED DID NOT COMPLY WITH THE REPAIR OF THIS DISCREPANCY EITHER.

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.