Service difficulty report · Flap · Boeing 7378H4

Difficulty date
June 28, 2022
Submitted
July 12, 2022
Operation
Air carrier
Aircraft
N8695D
Make and model
Boeing 7378H4
Aircraft serial
35965
Aircraft time
19,972 hours, 9,339 cycles
Part
Flap
Condition
Delaminated
Location
Rh 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

RT WING O/B AFT FLAP UPPER SURFACE HAS A DELAM 3' O/B FROM I/B END; 3' FWD OF T/E. / DAMAGE IS OUT OF ALLOWABLE DAMAGE LIMITS ACCORDING TO SRM 57-53-01-1A-4; FIG. 102; PARA. 4.A.(5 FABRICATED REPLACEMENT CORE PLUG FROM BMS 4-4; TY 4-25NPA (LOT# 1095039); AND UPPER SKIN REPAIR DOUBLER FROM PRE-PRIMERED 7075 T6 (LOT# 1351319-2); ACCORDING TO SRM 51-70-10-2R-0; PARA'S 8.A; 8.B; 8.D AND 8.E.<BR><BR>THOROUGHLY CLEANED CORE CAVITY AND REPAIR PARTS; INSTALLED REPLACEMENT CORE PLUG USING TWO PLIES OF BMS 5-101; GR 10 ADHESIVE (LOT# 1484596-1) AND BMS 5-28; TY 7 POTTING COMPOUND (LOT# AK1IP9146K); THEN VACUUM BAGGED REPAIR AREA FOR HEAT BLANKET CURE; ALL ACCORDING TO SRM 51-70-10-2R-0; PARA'S 9.E; 9.F; 9.G.(2); AND 9.H.(1). AREA IS SET FOR CURE (HOT BOND CONSOLE ID: ATS532; DUE: 06/2023).CURED REPLACEMENT CORE PLUG; SANDED CORE PLUG FLUSH WITH SURROUNDING SKIN; AND CLEANED REPAIR AREA; ALL ACCORDING TO SRM 51-70-10-2R-0; PARA. 9.H.(2)..INSTALLED REPAIR DOUBLER USING BMS 5-101; TY 2; GR 10 ADHESIVE (LOT# 1490484-1); THEN VACUUM BAGGED REPAIR AREA; ACCOMPLISHED VACUUM BLEED DOWN TEST (PASS); AND FULLY CURED REPAIR AREA; ALL ACCORDING TO SRM 51-70-10-2R-0; PARA'S 18; AND 20.B.CLEANED/TRIMMED REPAIR AREA; ACCOMPLISHED VISUAL AND TAP TEST INSPECTIONS; ALL ACCORDING TO SRM 51-70-10-2R-0; PARA'S 21.A THRU 21.C.<BR><BR>REPAIR AREA IS OK TO SEAL AND REFINISHCLEANED REPAIR AREA AND APPLIED FILLET SEAL TO THE REPAIR DOUBLER ACCORDING TO SRM 51-70-10-2R-0; PARA'S 22.A AND 22.B.

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