Service difficulty report · Baffle · Boeing 737*

Difficulty date
February 7, 2022
Submitted
February 28, 2022
Operation
Air carrier
Aircraft
N7752B
Make and model
Boeing 737*
Aircraft serial
33943
Aircraft time
44,008 hours, 22,440 cycles
Part
Baffle
Condition
Cracked
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

FOUND IN FWD CARGO RIGHT SIDE BETWEEN STA. 500A AND STA. 500B HAS A CRACK INSTERCOSTAL / [01] INSTALLED EWIS PROTECTION ON THE AREA AT FWD CARGO RIGHT SIDE INTERCOSTAL BETWEEN STA 500A AND 500B IAW B737-700 AMM 20-60-07-913-801;[02] REMOVED DAMAGED INTERCOSTAL AT FWD CARGO RIGHT SIDE BETWEEN STA 500A AND 500B IAW B737-700 SRM 51-40-02-OG-0;[03] FABRICATED DOUBLER SPLICE AT INTERCOSTAL STA 500A AND 500B FWD CARGO COMPARTMENT IAW B737-700 SRM 53-30-53-2R-1 REPAIR 1;[04] PERFORMED HFEC INSP ON FABRICATE BAFFLE DOUBLER. IAW B 737 NDT PART 6 51-00-00 PROC 23. TOOL NORTEC 600. BC 166316. CALIB DUE 10-8-22. NO CRACKS FOUND.;[05] ACCOMPLISHED; GVI @ REPAIR 1. 4 (D) 2.;[06] OK TO ALODINE & PRIME;[07] TREATED AND PRIMER BAFFLE DOUBLER AND INTERCOSTAL STA 500A AND STA 500B RBL 22 FWD CARGO COMPT. IAW B737-700 SRM 51-20-01-0G-0 AND A MM 51-21-72-370-804.;[08] CORRECTION STEP 7 STA 500A TO STA 500B RBL 25;[09] VERIFIED; STEPS 7 AND 8.;[10] OK TO INSTALL NEW BAFFLE;[11] CLEANED THE AREA BEFORE TO REMOVE THE EWIS PROTECTION IAW B737-700 AMM 20-60--07-913-801.;[12] INSTALLED NEW BAFFLE IAW B737-700 SRM 53-30-53-2R-1 REPAIR 1;[13] VERIFIED BAFFLE INSTALLATION. VERIFIED EWIS PROTECTION CLEAN. OK TO REMOVE EWIS PROTECTION;[14] REMOVED THE EWIS PROTECTION ON THE AREA IAW B737-700 AMM 20-60-07-913-801.;[15] VERIFIED 14;[16] COMPLETED INSTALLED BAFFLE STA.500A AND 500B RBL 25 FWD CARGO COMPARTMENT IAW B737-700 SRM 51-40-02-0G-0 AND AMM 20-60-07-913-801.;[17] VERIFIED 16