Service difficulty report · Skin · Boeing 7377H4

Difficulty date
June 5, 2022
Submitted
July 1, 2022
Operation
Air carrier
Aircraft
N255WN
Make and model
Boeing 7377H4
Aircraft serial
32513
Aircraft time
52,870 hours, 31,550 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

RIGHT WING LEADING EDGE #5 SLAT LOWER SKIN CRACKED AT #5 SLAT ACTUATOR. (234-20) / [01] REMOVED PANELS 622EB; 622DB AND 622CB FOR ACCESS REPAIR SKIN REF B-737-700 SRM 51-40-02-0G-0;;[12] FABRICATED DOUBLER; MATERIAL USED 7075T6 .071 PO#:1746529 AND FILLER; MATERIAL USED 7075T6 .063 PO#:1742711 IAW B737-700 SRM 57-42-01-2R-8 REPAIR 8 FIG;202.[21] INSTALLED REPAIR WASHERS AS REQUIRED PER B737-700 SRM 57-42-01-2R-8 PARAGRAPH 4.F.(3)(G).;[22] VERIFIED STEP #21; CONICAL WASHERS INSTALLATION.;[23] VERIFIED STEP 15;[24] INSTALLED FILLER AND DOUBLER REPAIR AT R/W L/E #5 SLAT LOWER #5 SLAT ACTUATOR IAW B737-700 SRM 57-42-01-2R-8 REPAIR 8;[25] VERIFIED STEP #24 ( REPAIR INSTALLATION );[26] OK TO INSTALL PANELS# 622EB; 622DB AND 622CB;[27] OK TO INSTALL SEAL RETAINER.;[28] INSTALLED SEAL RETAINER AND PANELS 622EB; 622DB; 622CB REMOVED FOR ACCESS REPAIR IAW B737-700 SRM 51-40-02-0G-0;

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