Service difficulty report · Intercostal · Boeing 73776N

Difficulty date
August 25, 2021
Submitted
October 4, 2021
Operation
Air carrier
Aircraft
N7822A
Make and model
Boeing 73776N
Aircraft serial
32596
Aircraft time
59,949 hours, 29,584 cycles
Part
Intercostal
Condition
Corroded
Location
Fuselage
Stage of operation
IN
How discovered
9
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

CORROSION ON INTERCOSTAL AT B.S. 500D+1; L.B.L. 7; W.L. 151. ; / [01] CORROSION ON INTERCOSTAL WAS FOUND TO BE OUT OF LIMITS DUE TO PROXIMITY TO FASTENER HOLES PER SRM 53-00-04-1A-1 FIGURE 102 DETAIL E.; [02] VERIFIED DAMAGE OUT LIMITS PER SRM 53-00-04-1A-1; [03] LOCATED AND DRILLED NEW INTERCOSTAL P/N 143A9803-15 IAW SRM 51-40-05-0G-0 AND DWG 143A7902. OK TO INSTALL.; [04] VERIFIED LOCATED AND DRILLED NEW INTERCOSTAL P/N 143A9803-15 IAW SRM 51-40-05-0G-0 AND DWG 143A7902. OK TO INSTALL.; [05] INSTALLED NEW INTERCOSTAL P/N 143A9803-15 IAW SRM 51-40-05-0G-0 AND DWG 143A7902.; [06] AND SRM 51-40-02-0G-0; [07] VERIFIED INTERCOSTAL INSTALLED PER SRM 51-40-05-0G-0 AND DWG 143A7902 AND SRM 51-40-02-0G-0; [08] UPDATED MEASUREMENTS; [09] TASK COMPLETE

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