Narrative:

Mechanics involved: I and mechanic Y. After changing the right-hand inboard (rhib) wheel and brake. Roughly an hour after; [I] noticed skydrol leak under the [main landing gear (medium large transport)] strut. We disassembled and prepped the strut as normal. Upon reassembly of the strut we found we didn't have a new scrapper seal. It was ordered aircraft on ground (aog) and we waited for it to come in. Can't remember when it came in; but I know it was late that morning and we stayed over after our regular shift to finish. By this time maintenance control and our base manager were making repetitive inquires as to when the crj-900 aircraft would be ready. I can't recall who assembled what. This was only the second or third strut 'repack' I'd done. Few weeks later; we got word [from] my supervisor during the start up meeting about the gear failure; but it was indicated that it wasn't anything we had done that caused it. I've still not really received detailed information as to what exactly happened or what we did.it was probably a combination of the amount of assembling required to repack the strut (lots of little things like cotter pins; bolts and connections to remember); constant interruptions and as it was only my second or third repack for me; a lack of experience. A more detailed final inspection wouldn't hurt. Also I've spoken with many of the other mechanics and they all agree that our maintenance control and managers need reminding that it is us who takes all the risk in maintenance; and pressure about gate times and performance numbers means nothing to us. Putting out a safe aircraft is our one and only concern. When it takes half a day to get a part shipped to us; that we should have had in stock in the first place; it tends to agitate us. We finally get the part and to have maintenance control/management calling or checking up every half hour; it tends to infuriate us.

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Original NASA ASRS Text

Title: A Mechanic was informed about a right-hand Main Landing Gear (MLG) strut failure on a CRJ-900 aircraft after he and another Mechanic performed a strut 'repack' procedure. Lack of in-stock parts; constant interruptions; distractions and departure pressures by their Maintenance Control and Base Manager contributed to a difficult environment.

Narrative: Mechanics involved: I and Mechanic Y. After changing the Right-Hand Inboard (RHIB) wheel and brake. Roughly an hour after; [I] noticed skydrol leak under the [Main Landing Gear (MLG)] strut. We disassembled and prepped the strut as normal. Upon reassembly of the strut we found we didn't have a new scrapper seal. It was ordered Aircraft On Ground (AOG) and we waited for it to come in. Can't remember when it came in; but I know it was late that morning and we stayed over after our regular shift to finish. By this time Maintenance Control and our Base Manager were making repetitive inquires as to when the CRJ-900 aircraft would be ready. I can't recall who assembled what. This was only the second or third strut 'repack' I'd done. Few weeks later; we got word [from] my Supervisor during the start up meeting about the gear failure; but it was indicated that it wasn't anything we had done that caused it. I've still not really received detailed information as to what exactly happened or what we did.It was probably a combination of the amount of assembling required to repack the strut (lots of little things like cotter pins; bolts and connections to remember); constant interruptions and as it was only my second or third repack for me; a lack of experience. A more detailed final inspection wouldn't hurt. Also I've spoken with many of the other mechanics and they all agree that our Maintenance Control and managers need reminding that it is us who takes all the risk in Maintenance; and pressure about gate times and performance numbers means nothing to us. Putting out a safe aircraft is our one and only concern. When it takes half a day to get a part shipped to us; that we should have had in stock in the first place; it tends to agitate us. We finally get the part and to have Maintenance Control/Management calling or checking up every half hour; it tends to infuriate us.

Data retrieved from NASA's ASRS site as of April 2012 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.