Service difficulty report · Panel · Boeing 7377H4

Difficulty date
May 18, 2023
Submitted
June 21, 2023
Operation
Air carrier
Aircraft
N429WN
Make and model
Boeing 7377H4
Aircraft serial
33658
Aircraft time
66,602 hours, 39,316 cycles
Part
Panel
Part number
UNKNOWN
Condition
Cracked
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

RT WING T/E PANEL 661BB AFT FASTENER HOLES ARE CRACKING AROUND EDGES<DAMAGE TO BE REPAIRED IAW SRM 51-70-04-2R-9 AS DIRECTED BY SRM 57-51-01-2R-1 PARA 4 B (2) TABLE 202.<BR><BR>REMOVED DAMAGE TO (52EA) FASTENER HOLES ALL TO A MEASURE OF .5'DIA; CLEANED; WITH NO CONTAMINATION NOTED IAW 51-70-04-2R-9 PARA 4 A-C.;[02] VALIDATED APPLICABILITY OF DAMAGE TO BE REPAIRED IAW SRM 51-70-04-2R-9.;[03] VERIFIED CORRECTIVE ACTION ITEMS 1-2 AND MEASUREMENTS TABLE.;[04] MIXED RESIN BMS8-301 CL1 LOT#JH2EAA8895 AND CHOPPED FIBERS AND APPLIED TO DAMAGED AREA IAW 51-70-04-2R-9 PAR 4 D-E.;[05] RESIN MIXTURE CURED THEN COMPLETED THE SURFACE PREPARATION & CLEANING PROCESS IAW SRM 51-70-04-2R-9 PARA 4. STEPS F-I. REF CAL TOOL HOT BONDER ID ATS2802 CAL DUE 10/2023;.USING BMS9-3 STYLE 1581 GLASS LOT 1522395-2 & BMS8-301/EA9390 RESIN LOT JH2EAA8895. FABRICATE D REPAIR PLIES; THEN LAID UP THE REPAIR; VACUUM BAGGED; LEAK CHECKED THEN SET TO CURE IAW SRM 51-70-04-2R-9 PARA 4. STEPS J; K & L. REF CAL TOOL HOT BONDER ID ATS2802 CAL DUE 10/2023.;[09] REPAIR PLIES CURED IAW SRM 51-70-04-2R-9 PARA 4. M. PER GENERAL REPAIR SECTION SRM 51-70-04-2R-0 PARA 4. N. (2). FIGURE 214. PAGE 39.<BR>REF CAL TOOL HOT BONDER ID ATS2802 CAL DUE 10/2023.<BR>REQUEST POST REPAIR EXAMINATION IAW SRM 51-70-04-2R-9 PARA 4. O. COMPLETED REFINISHING OUTER SURFACE OF PANEL 661BB IAW SRM 51-70-04-2R-9 PAR 4.P.;[15] VERIFIED CORRECTIVE ACTION ITEMS 12-14.

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