Service difficulty report · Vapor Barrier · Boeing 7377H4

Difficulty date
June 25, 2021
Submitted
July 7, 2021
Operation
Air carrier
Aircraft
N963WN
Make and model
Boeing 7377H4
Aircraft serial
36676
Aircraft time
32,578 hours, 19,816 cycles
Part
Vapor Barrier
Condition
Damaged
Location
Bs 663
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

REPAIR BS 663 L/H VAPOR BARRIER LBL 31.83 WL 157 ; / [01] IDENTIFIED L/H VAPOR BARRIER<BR>IAW SRM 57-10-10-0I-2 FIGURE2; TABLE 2 ITEM 4<BR>FOUND DAMAGE TO EXCEED ALLOWABLE LIMITS<BR>IAW SRM 57-10-10-1A-2 PARA 4 D 4 (B)<BR><BR>REPAIR TO BE EFFECTED IAW SRM 51-70-04-2R-10;<BR>PER SRM 57-10-10-2R-2 PARA 1 C. NOTE<BR><BR>REMOVED DAMAGE; PREPARED AND CLEANED REPAIR AREA.<BR>IAW SRM 51-70-04-2R-10 PARA 4 A; B; & C; [02] VALIDATED APPLICABILITY OF REPAIR SRM 51-70-04-2R-10.; [03] VERIFIED DAMAGE REMOVAL AND APPLICABILITY; [04] FABRICATED REPAIR PLIES FROM BMS9-3 STYLE 1581 TYPE H2 LOT#1458851-1 IAW SRM 51-70-05-2R-10 PARA 4 STEP D. OK TO INSTALL REPAIR PLIES.; [05] VERIFIED FABRICATION OF PLIES. OK TO INSTALL; [06] INSTALLED REPAIR PLIES WITH BMS8-301 CLASS 1 LOT#JH1CAA0868; VACUUM BAGGED REPAIR PLIES; VERIFIED 5X5 WAS GOOD AND SET PLIES TO CURE USING HOTBONDER ID:ATS532 S/N: 15092117 IAW SRM 51-70-04-2R-10 PARA 4.D-F.; [07] ACTION STEP 4 SHOULD READ 'IAW SRM 51-70-04-2R-10'; [08] VERIFIED CORRECTIVE ACTION #6 AND #7; SRM 51-70-04-2R-10 IS CORRECT REFERENCE FOR ACTION STEP #4.; [09] CURED REPAIR PLIES; UN-BAGGED; LIGHTLY SANDED AND TRIMMED EDGE IAW SRM 51-70-04-2R-10 PARA 4.F.; [10] CERTIFIED CURED REPAIR PLIES; UN-BAGGED; LIGHTLY SANDED AND TRIMMED EDGE IAW SRM 51-70-04-2R-10 PARA 4.F.; [15] REPAIRED BS 663 L/H VAPOR BARRIER LBL 31.83 WL 157 IAW SRM 51-70-04-2R-10;

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