What was found
WITH ENGINES OFF, CAPTAIN'S PITOT, RT AUX PITOT, LEFT AOA AND TAT HEATERS OFF LIGHTS ARE OUT. THESE SYSTEM ARE POWERED IN AIR MODE. CIRCUIT BREAKERS K14, K15, K17, K16, L18, L17 HAVE BEEN PULLED ON P6-3, IAW SSM30-31-01, PG101, SHEET 1. RT AUX PIT ON P6 MN POWER DISTRIBUTION, IAW 30-31-01 PG 101, SHEET 2. TAT ON P6 MN POWER DISTRIBUTION, IAW SSM M30-33-01. AOA P6 POWER DISTRIBUTION, SMM30-32-01 PG 101. FOUND AUTO SPEEDBRAKE TILT SENSOR, S10598 AT FAULT. REPLACED SENSOR PER MM. ALL OPS & INDICATIONS NOW OK.