Service difficulty report · Flap · Boeing 7378H4

Difficulty date
May 18, 2022
Submitted
June 13, 2022
Operation
Air carrier
Aircraft
N8690A
Make and model
Boeing 7378H4
Aircraft serial
36916
Aircraft time
20,154 hours, 9,318 cycles
Part
Flap
Condition
Delaminated
Location
R/H Wing
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 LOWER SURFACE I/B CORNER HAS AREA OF DELAM / [01] BOND TEST IAW B737 NDT PART 4; 51-00-05. DISBONDED AREA MARKED IN BLACK. TOOL#40082; DUE 11OCT22;[02] EVALUATED AND FOUND DELAMANATION AS MARKED. FOUND TO BE REPAIRABLE IAW SRM 57-53-01-2R-14 AND SRM 51-70-10-2R-0 REPAIR GENERAL. <BR><BR>REMOVED DAMAGE IAW SRM 51-70-10-2R-0 REPAIR GENERAL PARA 7. NO DAMAGE TO CORE.<BR><BR>MADE REPAIR PARTS IAW SRM 51-70-10-2R-0 REPAIR GENERAL PARA 8. 7075-T6-020PAA (A54056);[03] REQUESTING OK TO APPLY ADHESIVE PRIMER;[04] VERIFIED STEP 2;[05] OK GIVEN TO APPLY ADHESIVE PRIMER;[06] VERIFIED PRIMER THICKNESS IAW SRM 51-7-10-2R-0. FOUND TO BE IN LIMITS. TOOL#21860; DUE 22SEP22;[07] OUT OF SEQUENCE: APPLIED ADHESIVE PRIMER AND BOE-GEL IAW SRM 51-70-10-2R-0 REPAIR GENERAL PARA 14 AND 15. BOE-GEL (A121485); ADHESIVE PRIMER (J89501).<BR><BR>REQUESTING OK TO BOND;[08] OK TO BOND;[09] BONDED REPAIR IAW SRM 51-70-10-2R-0 REPAIR GENERAL PARA 20-21. ADHESIVE FILM (A68274). TAP TEST GOOD.REQUESTING OK TO SEAL AND APPLY DECORATIVE FINISH;[10] VERIFIED ITEM 9; OK TO SEAL AND PAINT;[11] SEALED AND APPLIED DECORATIVE FINISH IAW SRM 51-70-1-2R-0 REPAIR GENERAL PARA 22. SEALANT (A105275); PAINT (A124280).;[12] REPAIRED R/H WING O/B AFT FLAP LWR SURFACE I/B CORNER IAW SRM 51-70-10-2R-0 REPAIR GENERAL AND AMM 51-21-99-300-801.;[13] VERIFIED STEPS 11 & 12;[14] JOB COMPLETE; AUDIT C/W

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