What was found
PIECE OF ELECTRICAL CONNECTOR FELL OUT OF #1 ENGINE WHILE OPENING REVERSER. ALT. DEACTIVATION PROCEDURES USED PER CHP 5, TABLE 3, ITEM 7. GROUNDED - YES. FOUND CONNECTOR DP1102 DAMAGE & DISCONNECTED FROM ENG #1 BEED AIR REGULATOR. ENG HARNESS MW0311 REQUIRES REPLACEMENT. REPLACED MW0311 HARNESS WITH SERVICEABLE. C/W GROUND WING TAI SOLENOID VALVE TEST, OPS CHECKS OK. REVERSED ALTERNATE DEACTIVATION PROCEDURES. REF AMM 73-21-06, 30-11-12, & ASA MAINT CHAPT 005-07-01, TABLE 3, ITEM 7. 9 MIG 51A TAGS INSDTALLED / REMOVED. J.A. 23714. 11/02/2023. ACCOMPLISHED BLEED AIR REHULATOR OPS TEST REF. AMM 73-21-069 AMM SYSTEM OPERATIONAL TEST REF. AMM 77-31-00. ALL CKS GOOD.