Service difficulty report · Stiffener · Boeing 737*

Difficulty date
January 22, 2022
Submitted
February 17, 2022
Operation
Air carrier
Aircraft
N7838A
Make and model
Boeing 737*
Aircraft serial
30235
Aircraft time
59,491 hours, 36,468 cycles
Part
Stiffener
Condition
Cracked
Location
Center Wing Box
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

CRACK STIFFENER FLOOR STRUCTURE LOCATED BETWEEN BL0 AND RBL24.88 BS540 CENTER SECTION 2022-58101 / [01] REPLACED STIFFENER FLOOR STRUCTURE LOCATED BETWEEN BL0 AND RBL24.88 BS540 CENTER SECTION IAW B737-700 SRM-51-10-02-0G-0 ITEM 9 AND SRM-51-40-02; PART USED: P/N: 143A5240-36 B/N: SW2021002969;[02] CORRECTED STEP 1 : REPLACED STIFFENER FLOOR STRUCTURE LOCATED BETWEEN BL0 AND RBL24.88 BS540 CENTER SECTION IAW B737-700 SRM-51-10-02-0G-0 ITEM 9 AND SRM-51-40-02; PART USED: P/N: 143A5240-36 B/N: SW2021002969 SEE INDIVIDUAL SIGNS OFF BELOW;[03] REPLACED STIFFENER FLOOR STRUCTURE LOCATED BETWEEN BL0 AND RBL24.88 BS540 CENTER SECTION IAW B737-700 SRM-51-10-02-0G-0 ITEM 9 AND SRM-51-40-02; PART USED: P/N: 143A5240-36<BR>RII ACCOMPLISHED <BR> SEE INDIVIDUAL SIGNS OFF BELOW