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 R-27 STRINGER TO FRAME AT BS 540. REMOVED FASTENERS TO GAIN ACCESS AT FWD CARGO R-27 STRINGER TO FRAME AT BS 540 IAW B737-700 SRM 51-40-02-0G-0. CLEANED AREA AT FWD CARGO R-27 STRINGER TO FRAME AT BS 540 FOUND CRACKED IAW SRM 53-00-03-1A-1. REMOVED CORROSION ORIG. MAT. 0.032'; MAT. REMOVED: 0.020' REMAINING MAT. 0.012'. FOUND OUT OF LIMITS IAW SRM 51-10-02-0G-0 & 53-00-03-1A-1 TABLE 101. REMOVED FASTENERS COMMON TO REPAIR AT STRINGER-SKIN ATTACH FLANGE OF S-27R BETWEEN BS 540 & 500D IAW SRM 51-40-02-0G-0. CUT-OUT STRINGER DAMAGED SECCION 24' 7/8 FROM AFT END. ACCOMPLISHED ON EA:21-153-03794-WIP1.

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