What was found
LEFT RAM AIR DOOR FULL OPEN LIGHT ON DURING CLIMB AND BEGINNING OF CRUISE. LIGHT EXTINGUISHED DURING CRUISE. ACFT GROUNDED. REMOVED AND REPLACED LIMIT SWITCH S1051 IAW AMM 27-51-63-000-801 & 27-51-63-400-801. ACCOMPLISHED FLAP SWITCH ADJUSTMENT IAW AMM 27-51-63-820-801 PARA G. TIGHTENED SWITCH AND INSTALLED LOCKWIRE. ACCOMPLISHED ELEVATOR TAB CONTROL SYSTEM OPS TEST IAW AMM 27-31-00-700-815 AND PTU OPERATIONAL TEST IAW AMM 29-22-00-710-801. COMPLETED RAM DOOR FUNCTION TEST, OPS NORMAL IAW AMM 27-51-63-820-801. ALL CONNECTORS RECONNECTED, SEALANT APPLIED TO SWITCH. PACK/ZONE BITE NORMAL.