As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SFO - NOSE GEAR RED 'B' LIGHT REMAINED ON AFTER GEAR RETRACTION. MAINTENANCE DEFERRED LANDING GEAR 'B' POSITION INDICATION SYSTEM PER MEL 32-60-1. AIRCRAFT RETURNED TO SERVICE. MAINTENANCE SUBSEQUENTLY CLEARED DEFERRAL WITH THE ADJUSTMENT OF THE NOSE GEAR 'B' SYSTEM UPLOCK PROXIMITY SENSOR. (M)