As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT#1695, MCO-SJO. 'ON DESCENT INTO SJO DIRTY SOCK ODOR SMELLED LIKE BURNING CRAYONS - NOT APU RELATED ( PACKS ); PERFORMED ECS DE CONTAMONATIN ON PACK 1 AND 2 PER MAB 00-07-23-026. REPLACED RECIR FILTERS (HEPA) PER AMM 21-21-41. NO ODOR NOTED. MDDR CLEARED. MX-4 UPADTED. PLACARD REMOVED. MCC NOTIFIED.'