Narrative:

Aircraft was backed into the hangar for a left/H medium large transport strut repack; and the aircraft X's jacking had began. Halfway through the shift; aircraft Y had an [priority] landing with an engine issue. Local management wanted aircraft X towed out; aircraft Y towed in first; then aircraft X back in. [The following day]; aircraft Y was ready to come out of the hangar; but it was trapped because aircraft X's left/H medium large transport lower leg was removed.management elected to direct the winglet to be removed from aircraft Y; fill the wing with fuel; to make it heavier; and aircraft Y was towed out; wing under aircraft X wing; with 3 inch space between wing surfaces. If aircraft Y would of shifted; and wing raising up; it could of caused aircraft X to be knocked off jacks; and jacks puncturing wing fuel tanks; possible fire; personnel being hurt or even killed.if this would have happened; local management wouldn't have taken responsibility!poor decision by management. When a lower leg is removed from a strut; you take a chance of having corrosion issues. Why would an aircraft with an engine change be placed in the hangar before a strut repack?this violates every practice we've been preached. Never; never jeopardize damage to personnel or equipment.

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Original NASA ASRS Text

Title: Air carrier maintenance technician reported an aircraft was removed from the hanger using non-standard maintenance procedures and practices.

Narrative: Aircraft was backed into the hangar for a L/H MLG strut repack; and the Aircraft X's jacking had began. Halfway through the shift; Aircraft Y had an [priority] landing with an engine issue. Local management wanted Aircraft X towed out; Aircraft Y towed in first; then Aircraft X back in. [The following day]; Aircraft Y was ready to come out of the hangar; but it was trapped because Aircraft X's L/H MLG lower leg was removed.Management elected to direct the winglet to be removed from Aircraft Y; fill the wing with fuel; to make it heavier; and Aircraft Y was towed out; wing under Aircraft X wing; with 3 inch space between wing surfaces. If Aircraft Y would of shifted; and wing raising up; it could of caused Aircraft X to be knocked off jacks; and jacks puncturing wing fuel tanks; possible fire; personnel being hurt or even killed.If this would have happened; local management wouldn't have taken responsibility!Poor decision by Management. When a lower leg is removed from a strut; you take a chance of having corrosion issues. Why would an aircraft with an engine change be placed in the hangar before a strut repack?This violates every practice we've been preached. Never; never jeopardize damage to personnel or equipment.

Data retrieved from NASA's ASRS site 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.