What was found
SLATS PRIMARY FAIL MESSAGE WHENEVER FLAPS COMMANDED IN NORMAL MODE. BY- 227914 :MAT SHOWS MNT MSG 27-21021 DETECTED BY FSEU-1. ACPD FIM 27-81 TASK 810 THRU E3(D). CHECKED LOW SPEED SOLENOID RESISTANCE REF. WDM 27-81-15 AT SLAT PRIMARY CONTROL VALVE (V27003) CONNECTOR DV27003B PINS 8 TO 18, FOUND 61.5 OHMS, ALSO CONFIRMED 28VDC PIN ON 18 AT CONNECTOR SIDE. SUSPECT BAD VALVE, NEEDS TO CONTINUE T-S. DURING OPS CHECK, EXISTING FAULTS DISPLAY SHOWED 'LATCHED' EVERY CYCLE. IAW FIM 27-81 TASK 810 SLAT PRIMARY CONTROL VALVE V27003 REPLACEMENT REQUIRED. AS SUPPLY VOLTAGE AND SOLENOID RESISTANCE OK, SUSPECT INTERNAL LEAK.