Service difficulty report · Angle · Boeing 737*

Difficulty date
February 1, 2022
Submitted
March 7, 2022
Operation
Air carrier
Aircraft
N469WN
Make and model
Boeing 737*
Aircraft serial
33859
Aircraft time
59,572 hours, 35,384 cycles
Part
Angle
Condition
Cracked
Location
Center Wing
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

CRACKED VERTICAL STIFFENER ANGLE ON B.S. 663 LOWER COMPOSITE BULKHEAD AT L.B.L. 27; W.L. 150; ON AFT SIDE. / [01] REMOVED VERTICAL STIFFENER ANGLE BS663 LBL27 WL150-WL163 ON AFT SIDE OF LOWER COMPOSITE BLKHD IAW SRM 51-40-02.;[02] LOCATED; DRILLED; AND DEBURRED NEW VERTICAL STIFFENER ANGLE BS663 LBL27 WL150-WL163 IAW SRM 51-40-05 AND DWG #111A1000.;[03] VERIFIED CORRECTIVE ACTION 1 AND 2;[04] INSTALLED NEW VERTICAL STIFFENER ANGLE BS663 LBL27 WL150-WL163 IAW SRM 51-40-02 AND DWG #111A1000.;[05] VERIFIED CORRECTIVE ACTION #4;[06] VERIFIED TASK COMPLETE