What was found
THE CREW ABORTED TAKEOFF FOR STRONG SURGE. ENGINE PERAMETERS WERE OK . NORMAL FOR TAKEOFF. FELT LIKE A BLOWN TIRE OR STUCK BRAKES. ACFT DID NOT PULL IN EITHER DIRECTION. ACFT REMOVED FROM SERVICE. FOUND LT ENGINE OIL COOLER 1 FLAP STUCK AND THE OTHER FLAP BASE BROKEN. REMOVED BOTH LT OIL COOLER FLAPS AND DEFERRED IAW CDL 79-1, AUTH 010028 CDL-D. OPT RUN UP CHECK SATISFACTORY. NO SURGE NOTICED. ALSO REPLACED O-RINGS ON NR1 ENGINE 3-4-5 VENT TUBE IAW PWA 72-01-50. OPS CHECK GOOD NO LEAKS FOUND. THE ACFT WAS RETURNED TO SERVICE.