Service difficulty report · None · Boeing 7377H4

Difficulty date
September 5, 2022
Submitted
October 10, 2022
Operation
Air carrier
Aircraft
N952WN
Make and model
Boeing 7377H4
Aircraft serial
36667
Aircraft time
39,061 hours, 23,816 cycles
Part
None
Condition
Bulged
Location
Lh 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

L/W I/B AFT FLAP HAS A BULGE ON THE UPPER SURFACE SKIN 23.5' FROM I/B END; 1.5' FROM T/E / REMOVED AREA OF UPPER SURFACE SKIN AND FULL DEPTH HONEYCOMB CORE FABRICATED REPLACEMENT CORE SECTION FROM BMS 4-4; TY 4-25; NPA HONEYCOMB CORE (LOT# 1095039); SOLVENT CLEANED CORE AND REPAIR AREA; INSERTED REPLACEMENT CORE INTO THE REPAIR AREA USING BMS 5-28; TY 7 COMPOUND (LOT# AK1AP8072K) AND TWO PLIES OF BMS 5-101; TY 2; GR 5 ADHESIVE (LOT# 1484596-1FABRICATED REPAIR DOUBLER FROM PRE-PRIMED 0.016' 7075 T6 ALUMINUM (LOT# 1351319-2) ACCORDING TO SRM 51-70-10-2R-0; PARA. 8.A.APPLIED REPAIR DOUBLER USING BMS 5-101; TY 2; GR 10 ADHESIVE (LOT# 1484596-1); AND VACUUM BAGGED REPAIR AREA FOR HEAT BLANKET CURE ACCORDING TO SRM 51-70-10-2R-0; PARA. 18; TRIMMED REPAIR DOUBLER; REMOVED ADHESIVE FLASH; THEN ACCOMPLISHED VISUAL AND TAP TEST INSPECTION OF THE REPAIR AREA (NO DEFECTS NOTED); ALL ACCORDING TO SRM 51-70-10-2R-0; PARA. 21.A THRU 21.C.<BR><BR>REQUEST OK TO SEAL AND REFINISH REPAIR AREA.<BR><BR>HOT BOND CONSOLE ID: NCX000526; DUE: 10/2022;[07] VERIFIED CORRECTIVE ACTION #5; #6.<BR>VERIFIED OK TO SEAL AND REFINISH REPAIR AREA.;[08] CLEANED REPAIR AREA; APPLIED CHEMICAL CONVERSION COATING TO AREAS OF BARE METAL; SEALED THE EDGES OF THE REPAIR DOUBLER USING BMS 5-95 SEALANT (LOT# 45617990F-15); THEN APPLIED PROTECTIVE AND DECORATIVE FINISHES; ALL ACCORDING TO SRM 51-70-10-2R-0; PARA. 22.<BR><BR>REPAIR TO I/B AFT FLAP T/E WEDGE IS COMPLETE.;

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