What was found
FLAP ASSYMETRY STUCK BETWEEN 10-15 DEGREES TRAILING ASSYM IPC REFERENCE # 27-58-01-01 TRANSMITTER SENSOR AT FAULT. REMOVED AND REPLACED LEFT FLAP TRANSMITTER POSITION SENSOR IN REF TO B737- 7-8-9 AMM 27-58-01, OPS CHECKED GOOD. FLAPS OPS CHECKED GOOD. PERFORMED LAND VERIFY TESTS IN REF TO B737-7-8-9 AMM 22-11-00-201; ALL TESTS PASSED. OIL SERVICE ACCOMPLISHED AT EWR FOR FLT 1823 ON 15 DEC 01:41:50 ENGINE 1: 02 ADDED BY U194008 ENGINE 2: 02 ADDED BY U194008 ENGINE 3: ENGINE 4: APU: 00 CHECKED BY U194008 ROTABLE PARTS CHANGE WAS INDICATED - TT # 1165276 SN OFF 0926 AC REMAINS FULL CAPABILITY.