What was found
FUSELAGE TAIL SECTION EXTERNAL SKIN HAS SURFACE CORROSION AT FWD OF FR 78,BETWEEN STR 2LT AND STR 3LT,ABOUT 8 SQ INCHES. CORROSION AT FUSELAGE EXTERNAL SKIN FOUND TO BE OUT OF LIMITS IAW SRM 53-19- 12 FIG 102 PAR 5. REPAIRED AREA WITH INTERNAL DOUBLER AND FILLER IAW SRM 53-10-12 FIG 229 PG 411-412. CUT AND SPLICED STR 3L BETWEEN FR 77 AND FR 78 IAW EA 6-5310-145556 PG3, REMOVED AND RE-INSTALLED PREVIOUS REPAIR AT FR 78 EXTERNAL SKIN WITH CORRECT FILLER PIECE IAW A310 SRM 53-10-12 FIG 228 PG 403-404.