As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LGA - FLT 4559 - DURING CLIMB, CREW REPORTED A PRESSURIZATION LEAK IN THE FORWARD NOSE GEAR AREA. CABIN PRESSURE STARTED TO CLIMB TO 6 PSI AT 5000 FEET. MAINTENANCE COULD NOT DUPLICATE DISCREPANCY. OPERATIONAL CHECK IAW EMB MM 21-31-00 WAS GOOD AND AIRCRAFT WAS RETURNED TO SERVICE. (M)