What was found
GEAR DISAGREE UPON GEAR UP LEVER BEING PLACED IN THE UP POSITION. (FLIGHT 5565) TROUBLESHOT GREAR DISAGREE REFERENCING APPLICABLE STEPS OF FIM 32-21-00. FOUND NLG PROXIMITY SENSOR PX37 SHOWING FAR (UNREADABLE). ATTEMPTED TO ADJUST SENSOR PX37 REFERENCING APPLICABLE STEPS OF AMM 32-61-05 AND FOUND THE SENSOR FAULTY AND UNRESPONSIVE TO ADJUSTMENT. SEE CP'S 31934202 AND 31934188 FOR REPLACEMENT OF THE RH NLG NLG, WOW, CENTERED AND LVDT PROXIMITY-SENSOR HARNESS ASSEMBLY. PERFORMED OPERATIONAL TEST OF THE LANDING-GEAR EXTENSION/RETRACTION SYSTEM REFERENCING APPLICABLE STEPS OF AMM 32-30-00. OPS CHECK GOOD AT THIS TIME. GEAR DISAGREE MESSAGE NEVER RETURNED. AIRCRAFT GOOD FOR CONTINUED SERVICE."