As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
F/A REPORTED BURNT RUBBER SMELL IN AFT GALLEY AREA NEXT TO R2 DOOR (WHERE LAV WALL JOINS FUSELAGE AREA). SMELL DISSIPATED. ACCOMPLISHED CABIN ODOR TROUBLESHOOTING IAW B737 900 AMM 05 60 00 AND FOUND AFT GALLEY I/B COFFEEMAKER THE SOURCE OF THE ODOR. REMOVED AND REPLACED AFT GALLEY I/B COFFEEMAKER PER B737 900 AMM 25 32 01. OPERATIONAL CHECK GOOD. NO ODOR PRESENT.