Service difficulty report · Stringer · Boeing 7377H4

Difficulty date
March 27, 2022
Submitted
April 25, 2022
Operation
Air carrier
Aircraft
N762SW
Make and model
Boeing 7377H4
Aircraft serial
27876
Aircraft time
75,107 hours, 44,385 cycles
Part
Stringer
Condition
Corroded
Location
Fuselage
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

STRINGER 26L CORRODED FWD OF STA. 370 SPLICE / [01] FOUND CORR. ON STRINGER 26L; OUT OF LIMITS; CORRODED THRU; REF. B737-7 SRM 53-00-03-1A-1;[15] INSTALLED NEW STRINGER SECTION 26 L ; FROM STA. 294.4 TO STA. 360; PER REF 737-700 SRM 51-40-02-0G-0 AND DRAWING 141A3532; PENDING TO INSTALL FASTENERS UNDER CHOIRING;(6 EACH);[16] VERIFIED SQUEEZE OUT AND FASTENER INSTALLATION ON STRINGER 26L FROM STA. 294.4 TO STA. 360 ON 04/03/22; AT 22:30; PER REF SOPM 20-50-19;[17] VERIFIED STEPS 15 AND 16.;[18] OK TO INSTALL 3 WEBS AT 26L THAT WAS REMOVED ON T/C TTG8Q00BDSJ2 STEPS 21 AND STEP 25.;[19] INSTALLED 3 WEB AT STRINGER 26 L ; THAT WAS REMOVED ON TTG8Q00BDSJ2 PER REF. 737-700 SRM 51-40-02-0G-0 AND DRAWING 143A7505;[20] VERIFIED STEP 19.;[21] COMPLETE INSTALLATION OF STRINGER 26 L FROM STA. 294.4 TO STA. 360 PER REF 737-700 SRM 51-40-02-0G-0 AND DRAWING 141A3502; 141A3532;[22] REMOVED AND REPLACED STRINGER 26 L SECTION; FROM STA. 294.4 TO STA. 360 PER REF. 737-700 SRM 51-40-02-0G-0 AND DRAWINGS 141A3502 AND 141A3532;[23] VERIFIED STEPS 21 AND 22.

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