What was found
AFT PRESSURE BULKHEAD REAR WEB HAS 2 EACH RIVETS INSTALLED AT THE EDGE OF CHEM MILL I/B OF Z STIFFENER AT LBL 17 WL 140.5 AND 141.5. ******************AIRCRAFT REMOVED FROM SERVICE********************** REMOVED 2 EACH RIVETS AT THE EDGE OF CHEM MILL ON AFT PRESSURE BULKHEAD AT FS 621 LBL 17 WL 140.5 AND 141.5 AT REAR WEB. PERFORMED SPOT FACE WITH A 0.250" RADIUS FLAT AROUND DISCREPANT HOLES. ENSURED TRANSITION RADIUS OF 0.300" MIN WITH CHEM MILL EDGES. HFEC INSPECTION PERFORMED AT BOTH DISCREPANT HOLES WITH NO INDICATIONS. HFEC ROTARY PROBE INSPECTION PERFORMED AT BOTH DISCREPANT HOLES WITH NO INDICATIONS. INSTALLED 2 EACH FASTENERS AT REWORKED AREA. RESTORED PROTECTIVE FINISH AT REWORKED AREA. ALL WORK PERFORMED IAW MHIRJ REO 601R-53-61-7792 REV (--) DATED 2022-01-14. WORK COMPLETED ON AERSALE WO #003526 CARD #20260. N438AW TT: 39,745:56 TC: 39,335