As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING CRUISE AT 31,000 FT, ENGINE SURGE FELT ON LT ENGINE (EPR REDUCED TO 1.67) WITH AN IMMEDIATE ODOR. SAME SURGE/ODOR WAS FELT A SECOND TIME APPROXIMATELY 45 MINUTES LATER. AIRCRAFT DIVERTED TO POP. MAINTENANCE FOUND FORWARD LAVATORY LEAKING. LT ENGINE INSPECTED IAW MM 72-0-04 P.115 AND ENGINE RUN C/OUT TO 2-0 EPR AND NO FAULT FOUND. AIRCRAFT DISPATCHED SERVICEABLE.