What was found
DURING CLIMBOUT THROUGH 20,000 THE FIRST OFFICER AND MYSELF SMELLED A STRONG ELECTRICAL BURNING. / THE FLIGHT ATTENDANTS DIDN'T SMELL IT UNTIL 3-5 MINUTES LATER.THE ELECTRICAL BURNING KEPT GETTING STRONGER / UNTIL WE STARTED QRH 27.01, THE FUMES GOT STRONGER AND I REFERENCED THE SECTION IN THE BOXED AREA AND / DECLARED AN EMERGENCYWITH JAX CENTER.IT WAS A STRONG ELECTRICAL SMELL FROM THE ELECTRICAL COMPARTMENT./REF LOG PAGE 1643274 MEL 21-21-01A LH RECIRC FAN. REMOVED AND REPLACED EXTRACT FAN IAW AMM 21-26-51. OPS CHECK GOOD. A/C OK FOR SERVICE"