What was found
FLT 551 - ALM-ABQ - CREW REPORTED WITH THE LNDING GEAR HANDLE IN DOWN POSITION, PILOT COULD NOT GET NOSE GREEN DOWN AND LOCKED INDICATION. RED GEAR HANDLE LIGHT WAS ILLUMINATED, BUT THERE WAS NO AUDIBLE WARNING. PILOT HAND PUMPED GEAR BUT DID NOT RECEIVE A GREEN LIGHT. CREW DECLARED AN EMERGENCY. AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE ADJUSTED THE NOSE UPLOCK SWITCH AND PERFORMED A GEAR RETRACTION. OPS CHECK GOOD. AIRCRAFT WAS RETURNED TO SERVICE. (M)