What was found
AIRCRAFT IN BASE MAINTENANCE: BOTH LEFT HAND AND RIGHT HAND AFT POSITION EMERGENCY EXIT DOOR LINERS ARE INSTALLED INCORRECTLY EMOVED AND REINSTALLED LEFT HAND (AALA202510069425) AND RIGHT HAND (AALA202510060554) AFT POSITION EMERGENCY EXIT DOOR LINERS IN CORRECT POSITION, PER B737 NG AMM 52-22-51. ACCOMPLISHED OPERATIONAL TEST OF EMERGENCY EXIT HATCH DOOR HEATERS, PER B737NG AMM 21-45-00, NO DEFECTS NOTED AT THIS TIME.