Service difficulty report · Skin · Boeing 7377H4

Difficulty date
June 11, 2022
Submitted
July 14, 2022
Operation
Air carrier
Aircraft
N488WN
Make and model
Boeing 7377H4
Aircraft serial
33853
Aircraft time
59,468 hours, 35,169 cycles
Part
Skin
Condition
Cracked
Location
R/H 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

SLAT #8 CRACKED ON LOWER L/E SKIN AT ACTUATOR RIB O/B 2ND FROM L/E FASTENER HOLE. / [01] NDI HFEC VERIFY CRACK ON #8 SLAT LOWER SKIN AT ACTUATOR FITTING IAW SRM 51-10-02-0G-2; STEP 5.C.;[10] FABRICATED REPAIR PARTS (1) DOUBLER 7075 T6 CLAD 0.071' LOT# 1478276-1 AND (2) FILLER 7075 T6 CLAD 0.063' LOT# 1375297-3; APPLIED CHEMICAL CONVERSION COATING IAW SRM 57-42-01-2R-8 OK TO PRIME.;[11] VERIFIED CORRECTIVE ACTION 10. OK TO PRIME;[12] PRIMED REPAIR PARTS AND COMMON AREA; INSTALLED COUNTERSINK REPAIR WASHERS IAW SRM 57-42-01-2R-8 OK TO INSTALL REPAIR PARTS.;[13] VERIFIED CORRECTIVE ACTION 12. OK TO INSTALL REPAIR;[14] INSTALLED REPAIR PARTS AT #8 SLAT LOWER SKIN AT ACTUATOR RIB IAW SRM 57-42-01-2R-8;

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