Service difficulty report · Stringer · Boeing 7377H4

Difficulty date
May 10, 2021
Submitted
June 17, 2021
Operation
Air carrier
Aircraft
N732SW
Make and model
Boeing 7377H4
Aircraft serial
27864
Aircraft time
74,727 hours, 43,976 cycles
Part
Stringer
Condition
Cracked
Location
Bs 536 S25r
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

STR25R IS CRACKED AT BS536 RBL30 WL155 ; / REFER TO EA 21-153-01274 . UPDATED MEASUREMENT;VERIFIED LOCATE AND DRILLED NEW STR-25 SECTION;U CHANNEL & J- CHANNELS (2EA) AT BS 500D+6' - 540 AND APPLIED CHEMICAL CONVERSION COATING IAW AE 21-153-01274 AND SRM 53-00-03 REP.1.;VERIFIED RII STEPS COMPLETE.;VERIFIED REPAIRED STRINGER 25R AT BS 536 PER SWA EA # 21-153-01274.;VERIFIED APPLICATION OF CIC;VERIFIED PRIMER AND OK TO INSTALL.;VERIFIED; INSTALLED REPAIR PARTS AT BS 500D -540 STR-25R AND APPLIED SEALING AROUND REPAIR AREA IAW SRM 53-00-03 REP.1;DWG 143A1215;143A3230 & EA 21-153-01274;APPLIED CIC ON REPAIR AREA IAW SRM 53-00-03 REP. 1 AND EA 21-153-01274;APPLIED PRIMER ON REPAIR PARTS AND REPAIR AREA STR-25R BS 500D+6' - 540 IAW SRM 53-00-03 REP.1(LATE ENTRY);INSTALLED REPAIR PARTS AT BS 500D -540 STR-25R AND APPLIED SEALING AROUND REPAIR AREA IAW SRM 53-00-03 REP.1;DWG 143A1215;143A3230 & EA 21-153-01274;LOCATED AND DRILLED NEW STR-25 SECTION;U CHANNEL & J- CHANNELS (2EA) AT BS 500D+6' - 540 AND APPLIED CHEMICAL CONVERSION COATING IAW AE 21-153-01274 AND SRM 53-00-03 REP.1.;

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