What was found
(CAN) REGULAR SCHEDULE MAINTENANCE INSPECTION. MAINTENANCE ENGINEER FOUND NR 1 AND NR 2 ENGINE THERMAL ANTI ICE MANIFOLD FOR NOSE COWL BOLTS BACKING OUT WHILE CONDUCTING MFG TASK CARD NR 36-020-01-00 (FUNCTION CHECK PRECOOLER CONTROL VALVE, WING TAI SOLENOID). COMPANY ISSUED FLEET INSPECTION FOR LOOSE FASTENERS. SEVERAL AIRCRAFT FOUND WITH LOOSE BOLTS. INSPECTED AND CORRECTED THROUGH COMPANY SPECIAL MAINTENANCE ITEM INSPECTION. REFERENCE: POWERPLANT BUILD UP MANUAL, FIGURE 13-1, 12 O'CLOCK STRUT INSTALLATION, 71-00-02, PAGES 1-4.