What was found
DURING REPLACEMENT OF LT BI-FLOW CONTROL VALVE IN CONJUNCTION WITH A SCHEDULED INSPECTION, FOUND PNEUMATIC TUBE IN LT PYLON AREA BENT AND CRACKED IN HALF. SUSPECT MAY BE CAUSED DUE TO PREVIOUS ROUGH HANDLING OR FORCING TUBING DURING BI-FLOW VALVE REPLACEMENT OR RELATED MAINTENANCE IN AREA. RECOMMENDED A MAINTENANCE PRECAUTION BE ADDED TO SEC 21-20-06-401 IN THE 390 MM ADVISING TECH TO HANDLE PNEUMATIC LINES IN THIS AREA WITH CAUTION. (K)