What was found
SUPPLEMENTAL INFORMATION: DURING HEAVY MAINTENANCE, CORROSION LOWER STRUCTURE ON SHEAR TIE LOC FRAME 88 AT LEVEL STR 26 RT TO STR 27RT IN PASSENGER CABIN (1 EA) CPC RELATED 53-23-018. R & R SHEAR TIE LOCATED ON LOWER STRUCTURE ON FRAME 88 AT LEVEL STR 26 RT TO STR 27 RT IN PASSANGER CABIN (1 EA). CPCP RELATED 53-23-018-0428-JBE, IAW E190 SRM 51-40-08 AND DRAWING NR 170-65180-445. TAKE MEASURE OF CORROSION ON SHEAR TIE L: 0.234 INCH W: 2.890 INCH H: .034 INCH TOOL USED CALIPER P/N 500-197-30 SN A18109156 DUE DATE JUL 04-2021 DEPTH GAGE PN 547-217S SN 002025 DUE DATE JULY 11-2021 ATTACHED MX 220 FOR ALL WORKED PERFORMED ON AEROMAN NR 252 WO 2020-351252. CLASSIFIED AS MAJOR.