Service difficulty report · Skin · Boeing 7377H4

Difficulty date
April 30, 2021
Submitted
June 3, 2021
Operation
Air carrier
Aircraft
N437WN
Make and model
Boeing 7377H4
Aircraft serial
29832
Aircraft time
61,136 hours, 35,877 cycles
Part
Skin
Condition
Cracked
Location
Bs 193
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

CRACK INDICATION ON EXTERNAL SKIN (LOWER PANEL) LOCATED AT 0.025 INCH INBOARD FROM RIB STA 193.90 AND 15.5 INCH. FROM FRONT SPAR. AT RT HORIZONTAL STABILIZER (CRACK LENGTH = 1.125 INCH. APPROX.) / REPAIRED EXTERNAL SKIN (LOWER PANEL) LOC. AT 0.025 INCH INBOARD FROM RIB STA 193.90 AND 15.5 INCH FROM FRONT SPAR AT RT HORIZONTAL STABILIZER IAW B737-700 SRM 55-10-01-2R-11 REPAIR 11 MATERIAL USED ALUMINUM SHEET 2024-T3 0.063' P.O:2020225452 AND ALUMINUM SHEET 2024-T3 0.080' P.O:2020213566 FOR INSPECTION REQUIREMENT SEE TLD:T080558

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