Service difficulty report · Panel · Boeing 7377H4

Difficulty date
January 3, 2023
Submitted
February 8, 2023
Operation
Air carrier
Aircraft
N209WN
Make and model
Boeing 7377H4
Aircraft serial
32484
Aircraft time
59,684 hours, 35,490 cycles
Part
Panel
Part number
NOTREPORTED
Condition
Delaminated
Location
Zn 500 Left 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

LT WING L/E PANEL 521CB FWD O/B CORNER IS DELAMINATED<REMOVED DAMAGED PLIES TO FWD O/B CORNER AND CLEANED IAW SRM 51-70-05-2R-6 PAR. 4.A.-D.<BR><BR>UPDATED MEASUREMENTS TABLE. FABRICATED AND INSTALLED REPAIR PLIES TO REPAIR AREA USING BMS8-79 CL3 ST1581 LOT# 1510611-1; BMS8-79 CL3 ST120 LOT# 1512713-2 WITH BMS5-129 ADHESIVE LOT# 1510001-1; VACUUM BAGGED REPAIR WITH LEAK CHECKED GOOD USING GAUGE ID: ATS2797 CAL/DUE: 10/2023 AND SET FOR HEAT BLANKET CURE USING HEATCON HOTBONDER ID: ATS2802 CAL/DUE: 10/2023 IAW SRM 51-70-05-2R-6 PAR. 4.E.-G.;[06] COMPLETED CURE; UNBAGGED AND LIGHTLY SANDED REPAIR IAW SRM 51-70-05-2R-6 PARA 4.G;I.; REQUESTING POST CURE NDI OF REPAIR IAW SRM 51-70-05-2R-6 PAR. 4.H.;[09] POST REPAIR UT INSPECTED PER 737NDT PART 4 51-00-02. NO DEFECTS FOUND. TOOL E650 ATS2031.;[10] FABRICATED ALUMINUM FOIL PLY FROM BMS 8-289 LOT#1507307-1 AND INSTALLED USING BMS 5-128 LOT#JH2FAL7046; VACUUM BAGGED; LEAK CHECK GOOD; CURED; UNBAGGED; AND TRIMMED EXCESS MATERIAL IAW SRM 51-70-14-2R-3 PARA 4.A.(3-5)(11)(A-L).<BR>INSTALLED 2EA PREVIOUSLY REMOVED BACKUP PLATES IAW SRM 51-40-02-0G-0 PARA 4 AND BOEING DWG 116A9110.<BR>APPLIED PRIMER TO OUTER SURFACE IAW SRM 51-70-05-2R-6 PARA 4.I.<BR><BR>THERMOMETER ID:ATS2208 CAL DUE 10/2023<BR>VACUUM GAUGE ID:ATS2107 CAL DUE 09/2023;[11] REFINISHED OUTER SURFACE OF PANEL IAW SRM 51-70-05-2R-6 PARA 4.I.

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