006 SB 737-52-1152 DOORS - FORWARD AIRSTAIR DOOR RELIABILITY IMPROVEMENT - REPLACE DOOR LOCKPIN ACTUATORS. OPEN UMITAMARNING SWITCH BRACKETS. AND RACEWAY COVER ASSEMBLY. SERVICE BULLETIN MOS 08-SEP-2005 7-Insufficient Information +-Task exists in Inspection Manual (s)-Suppressed Requirement (ex)-Excluded Tasks '-E