A320
Maintenance Airframe; Maintenance Powerplant
Confusion; Communication Breakdown; Training / Qualification; Situational Awareness
Aircraft Equipment Problem Critical; Deviation / Discrepancy - Procedural Published Material / Policy
General Maintenance Action
Manuals; Aircraft; Chart Or Publication; Human Factors; Incorrect / Not Installed / Unavailable Part; Procedure
While performing [Landing] Gear change on an A320 aircraft per Maintenance Task Card; Bolt Item #240; in Illustrated Parts Catalog (IPC) 32-12-14; was torqued and in doing so; failed its Torque Limits and threads were stripped. The bolt from the old [removed Landing] Gear Side Stay was taken and put in the place of the new bolt. I; being the Lead of the crew; directed my mechanics to do so. I got this direction from my direct Supervisor. The outcome is that we cannot substitute a used part from the old [removed] gear and install it on the new [Landing] Gear.
During Main Landing Gear (MLG) change; the Left-Hand Lock Stay; Lock Spring bolt was stripped on the replacement gear from Vendor. Installed bolt from removed MLG.  Was notified later that bolt was a Time Limited Part.
A Lead and two Mechanics were informed the Lock Spring bolt they had robbed from a removed A320 left-hand Main Landing Gear (MLG) and used to secure a Lock Spring on the Side Stay assembly on a new MLG was a Time Limited Part and should not have been reused. The Lead Mechanic was directed by his Supervisor to reuse old bolt.