Service difficulty report · Stringer · Boeing 7377K9

Difficulty date
December 4, 2021
Submitted
January 18, 2022
Operation
Air carrier
Aircraft
N7814B
Make and model
Boeing 7377K9
Aircraft serial
30042
Aircraft time
56,070 hours, 29,520 cycles
Part
Stringer
Condition
Corroded
Location
Fuselage
Stage of operation
UK
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

CORROSION FWD CARGO L-26 STRINGER TO FRAME AT BS 540. REMOVED CORROSION S26L, BS 540 FOUND OUT LIMITS IAW B737-700 SRM 51-10-02, ORIG. MAT.: 0.045'; MAT. REMOVED:0.035'; REMAINING MAT. : 0.015'; FOUND OUT OF LIMITS IAW SRM 53-00-03-1A-1, TABLE 101. CUT-OUT STRINGER DAMAGED SECTION 24' 7/8 FROM AFT END IAW SRM 53-00-03-2R-1, FIG 206. PERFORMED HFEC INSP. ON THE REPAIR AREA IAW NDT PART 6; 51-00-00; PROCEDURE 23. NO CRACKS NOTED. REPAIR OF S26L WAS ACCOMPLISHED ON EA:21-153-03789-WIP1.

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