B757 Undifferentiated or Other Model
Maintenance Powerplant
Communication Breakdown; Confusion; Training / Qualification; Situational Awareness
Aircraft Equipment Problem Critical; Ground Event / Encounter Other / Unknown
Aircraft Aircraft Damaged
Chart Or Publication; Equipment / Tooling; Human Factors; Procedure
Prior to installation of Thrust Reverser Hoist Assembly:1) Checked out Thrust Reverser (T/R) Hoist Kit; from Stores. Item was located in the Engine Change Build up Kit. 2) Inspected hoist equipment available in T/R Hoist Kit. Items available in T/R Hoist Kit was:  A) two sets of mount bolts; (2 each; same size and length).  B) one each Hoist chain assembly with mount. As is; Installed equipment available for T/R removal. Mount bolts were tight and re-checked before T/R removal. Bolts remained tight. T/R was removed and moving toward the T/R shipping crate; by fork lift. At the time the T/R dropped; I was in the process of getting some covers for the engine anti-ice duct; and was walking away from the incident. But heard the impact of the T/R hitting the floor.
An Aircraft Maintenance Technician (AMT) reports about a Thrust Reverser Assembly from a B757 engine that was dropped on the hangar floor while being moved with a forklift to a shipping crate. A Thrust Reverser Hoist Kit only included mount bolts and hoist chain assembly.