What was found
DURING PHASE TWO INSPECTION FOUND LIGHTNING STRIKE AT CROWN APPROXIMATELY STATION 350BETWEEN S 2R-3RFOUND TWO(2EACH)LIGHTINGAT STRIKE STA 360 LEFT BELOW FLOORBEAM. FASTENER/DAMAGE REMOVED REF SRM 53-00-01-2R. INSPECTION-REJECT,"PIT" WITHIN COUNTERSINK CLEANED COUNTERSINK READY FOR NDT REF SRM 53-00-01-2R-41. INSPECTION-ACPD HFEC B737 NDT PART 6 ,51-00-00 NO CRACKS NOTED, OK TO INSTALL FASTENER. FUSE SKIN STILL DEEPLY PITTED AROUND THE RIVET HOLE, OVERSIZED HOLE TO 1/4 INCH, NO GOOD, FUSELAGE SKIN STILL PITTED AROUND THE RIVET HOLE, SEE ATTACHED PHOTO. ESTIMATED DIAMETER TO CLEAR DAMAGE IS 11/32" (.34375) CONTINUED, REF SRM 53-00-01-2R-41. CONTINUED, REF SRM 53-00-01-2R-41. OPENED HOLE TO .312 REF 53-00-01-2R-41. REMOVED EXISTING FASTENERS FOR ACCESS REF SRM 51-40-02 REF AVO17433 COMPLETED A PROGRESSIVE SPOT-FACE ON THE SKIN TO REMOVE DAMAGE, FINAL HOLE SIZE IS .375. REQUIRES NDT INSPECTION. ACP NDT INSP REF AVO17433, ITEMS 5, 6, 7 AND 8. NO CRACKS INDICATIONS NOTED AT ALL REMOVED FASTENERS LOCATIONS AND BLENDING OF SKIN WAS MINIMAL, MATERIAL LOST WITHIN LIMITS.