Service difficulty report · Flap · Boeing 7377H4

Difficulty date
October 18, 2022
Submitted
October 28, 2022
Operation
Air carrier
Aircraft
N218WN
Make and model
Boeing 7377H4
Aircraft serial
32489
Aircraft time
57,927 hours, 34,785 cycles
Part
Flap
Condition
Delaminated
Location
Zn 600 Right Win
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

R/H WING O/B AFT FLAP I/B LOWER CORNER DELAMINATED / REMOVED DELAMINATED LOWER SKIN 7.0 X 6.0. CLEANED AND PREP AREA FOR REPAIR. IAW B737-700 SRM 51-70-10-2R-0 PAR6;7. REV77;[04] INSPECTED THE FITMENT OF REPAIR PARTS. IAW B737-700 SRM 51-70-10-2R-0 PAR10.;[05] VERIFIED MATERIALS AS: 7075-T6-.020 (A54056);AC-130 BO-GEL (A149980); ADHESIVE PRIMER (A125668). IAW B737-700 SRM 51-70-10-2R-0 PAR 14;15.;[06] VERIFIED ITEMS 1; AND ITEMS 3 THROUGH 5.;[07] APPLIED BOE-GEL AND ADHESIVE PRIMER IAW SRM 51-70-10-2R-0 REPAIR GENERAL PARA 14 AND 15.;[08] PERFORMED NDT OF ADHESIVE PRIMER THICKNESS IAW SRM 51-70-10-2R-0 STEP 15H(1A). PRIMER THICKNESS WITHIN LIMITS. TOOL# 21860 CAL DUE 05OCT23.;[09] REQUEST OK TO BOND;[10] OK TO BOND;[11] BONDED REPAIR IAW SRM 51-70-10-2R-0 REPAIR GENERAL PARA 20-21. TAP TEST GOOD.<BR><BR>REQUEST OK TO CLEAN; SEAL; AND FINISH;[12] VERIFIED ITEM 11. TAP TEST GOOD<BR>OK TO CLEAN; SEAL; AND FINISH;[13] APPLIED SEALANT TO REPAIRED AREA. IAW B737-700 SRM 51-70-10-2R-0 PAR 22. APPLIED DECORATIVE FINISH. IAW B 737 AMM 51-21-99-300-801. (A137965); (A80222)&(A99201).;[14] REPAIRED DELAMINATION ON R/H WING O/B AFT LOWER I/B CORNER. IAW B737-700 SRM 57-53-01-2R-4; SRM 51-70-10-2R-0;AMM 51-21-99-300-801.

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