What was found
FOUND DURING 'ZERO B TRANSITION' CHECK AT AVBORNE HEAVY MAINTENANCE FACILITY, PRIOR TO THIS AIRCRAFT BEING ON THE KHA CERTIFICATE. NOSE SECTION INTERNAL CIRCUMFERENTIAL FRAME HAS CORROSION ON LEFT SIDE OF DOG HOUSE BELOW HORIZONTAL WALKWAY BEAM BS 303 AND STRINGER 26L AND LOWER END. CUT OUT DAMAGED AREA ON FRAME IAW 53-10-4. INSTALLED REPAIR AT CIRCUMFERENTIAL FRAME AT BODY STATION 303 STRINGER 26L IAW B727 SRM 53-10-4. (M)