What was found
NOISE HEARD IN NOSE REAR GEAR DOORS IN NOSE OF ACFT LESS THAN FL 100 + 250KTS. ACFT RETURNED TO THE FIELD AS A PRECAUTIONARY MEASURE. ACCOMPLISHED TSM 05-50-00-18-08-01A TYPE 8. FOUND DIMENSION OF ACFT NOSE GEAR DOORS WITHIN LIMITS IAW AMM 32-22-00-22-00-02A. PERFORMED VISUAL INSPECTION OF ROTATING ROD OF NOSE GEAR AFT DOOR, NO DAMAGE NOTED. FOUND NLG AFT DOOR SEAL DISLODGED. ACFT WAS FERRIED TO LAX AND THE SEAL WAS SECURED. NO FURTHER REPORTS OF NOISE OR VIBRATION REPORTED ON SUBSEQUENT FLIGHTS.