What was found
ON TAKEOFF, RETRACTED THE MLG. MLG DID NOT RETRACT. 1-3 MINUTES LATER STAB MISCOMPARE ILLUM. ACFT STILL AT 160 KNOTS. ON APPROACH FLAPS WOULD NOT EXTEND. AFTER LANDING T/R & SPEED BRAKES NOT EXTENDED. POST FLT STAB IN TAKEOFF POS & HYD FLUID AT FULL. NO HYD ANNUNC ILLUM. VERIFIED ELECTRICAL POWER TO LOADING VALVE & FOUND IT AT 9 VOLTS, SHOULD BE 28 VOLTS AT PY044. CHECKED PCB, FOUND 1 COMPNT WARM & DISCOLORED. IAW WIRE DIAGRAM 32-30-01 FIGURE 02. INSP CONNECTOR, FOUND IT INTERFERED WITH PANEL, W/MISCLOCKED BACKSHELL. FOUND CHAFED WIRE. REPAIRED WIRE. OPS CHECKED FLAPS, SPEED BRAKES & MLG IAW MM 32-30-00, 27-51-00, & 21-61-00. FOUND ALL HYDS NORMAL, LOAD CONTROL VALVE OPEN & CLOSING.