An engine shop Mechanic reports about numerous maintenance discrepancies found on another General Electric (GE) CF-34 engine received from a Contract Maintenance Quick Engine Change (QEC) vendor repair station. Lack of Quality Assurance oversight by air carrier of the Contract Repair Station's maintenance procedures cited once again.

Narrative

Engine received at facility from a Contract Maintenance Quick Engine Change (QEC) vendor with a Serviceable [FAA-8130] PMI Identification (ID) Tag. While accomplishing visual inspection; several discrepancies noted. Refer to company Work Order XXXX for action taken. Items noted were: thrust reverser stang fairing attach bracket cracked; metal seal plate missing for stang fairing bracket; nose inlet cowl lip skin dented; thrust reverser gearbox actuator not set correctly when at stow position; drain line not connected at Accessory Gearbox (AGB) drain mast and mount bracket cracked for hydraulic manifold at pressure Quad (QD) connection point.Additionally; not noted on company work order were the XXX-colored tags that were with miscellaneous bleed ducts and insulation pieces that were incorrectly filled out. Most were missing information concerning where part came from; incorrect part numbers; part name incorrect and disposition section had no notations.Increased surveillance of vendor for proper procedures in parts identification required; better Quality Assurance (QA) oversight in the process of QEC Inspection for 'Return to Service' of QEC [engines].