Service difficulty report · Barrier · Boeing 7377BD

Difficulty date
January 22, 2022
Submitted
April 4, 2022
Operation
Air carrier
Aircraft
N7730A
Make and model
Boeing 7377BD
Aircraft serial
33926
Aircraft time
51,354 hours, 27,779 cycles
Part
Barrier
Condition
Delaminated
Location
Center Wing
Stage of operation
UK
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

BS 663 VAPOR BARRIER BULKHEAD DELAMINATING REPAIR NOTED RBL 39 WL 159 / [01] IDENTIFIED PART MATERIAL IAW SRM 57-10-10-0I-2 FIG 2 TABLE 2 ITEM 4.<BR>FOUND DAMAGE TO BE OUT OF ALLOWABLE LIMITS IAW SRM 57-10-10-1A-2 PARA 4D(1).<BR>DAMAGE WILL BE REPAIRED IAW SRM 51-70-04-2R-10 PER SRM 57-10-10-2R-2 PARA 1C(NOTE).<BR>REMOVED DAMAGED PLIES AND CLEANED REPAIR AREA IAW SRM 51-70-04-2R-10 PARA 4A-C.[06] FABRICATED REPAIR PLIES OUT OF BMS 9-3 ST 1581 LOT#1475360-2 IAW SRM 51-70-04-2R-10 PAR 4D. OK TO INSTALL.;[07] VERIFIED FABRICATED REPAIR PLIES IAW SRM 51-70-04-2R-10; OK TO INSTALL;[08] INSTALLED REPAIR PLIES BMS 8-301CL1 LOT#JH1GAA7833; VACUUM BAGGED; LEAK CHECK GOOD IAW SRM 51-70-04-2R-10 PARA 4D-E.<BR>USED VACUUM GAUGE ID:ATS2441 S/N:UNKNOWN;[09] VERIFIED CORRECTIVE ACTION 8.;[10] CURED REPAIR PLIES; UNBAGGED AND LIGHTLY SANDED IAW SRM 51-70-04-2R-10 PARA 4F;H.<BR>USED THERMOMETER ID:ATS2209 S/N:43300739WS;[11] VERIFIED CORRECTIVE ACTION ITEM 10;[12] UT INSPECTED REPAIR PER NDTM PART 4; 51-00-02. NO DISBONDS NOTED.<BR>CAL ID: ATS2341 S/N: 190848104;[13] REFINISHED REPAIR AREAS IAW SRM 51-70-04-2R-10 PAR 4I AND AMM 51-21-99-300-802 PAR 3C(1).<BR><BR>COMPLETED SRM REPAIR 51-70-04-2R-10.;[14] VERIFIED RII STEPS COMPLETE;[15] VERIFIED CORRECTIVE ACTION 13

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