Service difficulty report · Intercostal · Boeing 737*

Difficulty date
February 2, 2022
Submitted
March 3, 2022
Operation
Air carrier
Aircraft
N469WN
Make and model
Boeing 737*
Aircraft serial
33859
Aircraft time
59,572 hours, 35,384 cycles
Part
Intercostal
Condition
Corroded
Location
Aft Cargo
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

CORROSION ON INTERCOSTAL AT AFT CARGO BAY BS787+8 RBL6. / [01] EVALUATED CORROSION ON INTERCOSTAL BS 787+8 RBL 6 WL 153-154; FOUND TO BE OUT OF LIMITS DUE TO NO LIMITS IN THE SRM AND REQUIRES REPLACEMENT PER SRM 51-10-02-0G-0;[02] VERIFIED CORRECTIVE ACTION ENTRY 1.;[03] REMOVED ACB INTERCOSTAL AT BS787 - BS807; RBL6 PER SRM 51-40-02-0G-0;[04] LOCATED AND DRILLED ACB NEW INTERCOSTAL AT BS787 - BS807; RBL6; WL154 PER SRM 51-40-05-0G-0 AND DWG 146A8130. OK TO INSTALL;[05] VERIFIED CORRECTIVE ACTION ENTRY 4. OK TO INSTALL GIVEN.;[06] INSTALLED ACB NEW INTERCOSTAL AT BS787 - BS807; RBL6; WL154 PER SRM 51-40-02-0G-0 AND DWG 146A8130.;[07] VERIFIED CORRECTIVE ACTION #6;[08] VERIFIED CORRECTIVE ACTION #6