What was found
UPON TAKEOFF, GEAR DISAGREE AND NOSEDOOR UNSAFE WARNING MESSAGES OCCURRED. NOSE GEAR DID NOT COME UP. FOLLOWED QRH PROCEDURES AND SUCCESSFULLY LOWERED ALL THREE GEAR. NO OVERWEIGHT LANDING. NO OVERSPEED OR SOPM LIMITATIONS WERE EXCEEDED. (FLT 5256 FILED CLOSED)THIS DISCREPANCY WAS TRANSFERRED TO CAMP ITEM 26642521 WITH THE FOLLOWING CORRECTIVE ACTION: "REFERENCE CP 26642829 FOR GEAR DISAGREE TROUBLESHOOTING HELP SHEET AND INITIAL TROUBLESHOOTING OF GEAR DISAGREE AND NOSEDOOR UNSAFE.REFERENCE ML 26642522 FOR REPLACEMENT OF THE NLG OLEO/CENTERING BRACKET AND OPS CHECKS.REFERENCE CP 26642529 FOR ODI RETURN TO SERVICE APPROVAL."