What was found
FOLLOW UP TO HISTORY OF LEFT PACK LIGHT ILLUMINATING ON MASTER CAUTION RECALL WITH SUCCESSFUL RESET. GROUNDED - YES. FOUND FAULT CODE 21-51406 SRADA EXIT IN FAULT HISTORY ON 5+ PREVIOUS LEGS INCLUDING 00. PERFORMED GVI OF L/H PACK RAM AIR SYS. AND HEAT EXCHANGERS. NO BLOCKAGE FOUND. FOUND EXHAUST SRADA FAULTING THE INLET ACTUATOR. REPLACED THE INLET SRADA PER B737-900 AMM 21-51-21-400-801 UP TO STEP J(10). ACCESS PANEL 191FL REMOVED. COMPLETED INSTALLATION OF RAM AIR INLET ACTUATOR REF MM 21-51-21-400-801. OPS CK GOOD. COMPLETED STEP 4 OF TSR, NO DEFECTS NOTED. FOUND L/H INLET DOOR TIE ROD ROD ENDS AND BELLCRANK PARTIALLY SEIZED AND DRAGGING, CLEANED AND LUBED. DEFLECTOR DOOR OUT OF ADJUSTMENT, ADJUSTED, OPS NORMAL.