What was found
DURING HEAVY MAINTENANCE: EVIDENCE OF REWORK EXTERNAL SKIN LOC. FR25 PLUS 7.050INCH AT LEVEL STR 43R AT LOWER FUSELAGE; EVALUATED EXISTING REWORK LOC. ON EXTERNAL SKIN LOC. FR25 PLUS 7.050INCH AT LEVEL STR43R AT LOWER FUSELAGE AND FOUND WITHIN LIMITS I.A.W A321 SRM 53-21-11-283-018 FIGURE 1 (SHEET 1,SHEET 2 AND SHEET 3) DIAGRAM 001 AND DIAGRAM 002 FIGURE 5 (SHEET 1 ,SHEET 2 AND SHEET 3). MEASURES OF REWORK ARE L=0.869, INCH W=0.559 INCH, MRT= 0.067 INCH, NOMINAL THICKNESS OF AREA 0.071 INCH I.A.W A321 SRM 53-21-11-01-F, FIGURE 1 (SHEET 2). LOSS MATERIAL 5.64% THIS REPAIR IS CATEGORY B. INSPECTION THRESHOLD 48,000FC/ 96,000FH FROM AIRCRAFT FIRST FLIGHT AND SUBSEQUENT INSPECTION AT INTERVALS 5 ,000FC/ 10,000FH INSPECTION METHOD HIGH FREQUENCY EDDY CURRENT (HFEC ) ZONE 2. I.A.W A321 SRI 53-21-11-205-034. TABLE 001.