Service difficulty report · Intercostal · Boeing 737*

Difficulty date
February 13, 2022
Submitted
March 1, 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
Cracked
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

BS 294.5 -312 RBL20 WL208 INTERCOSTAL IS CRACK. / [01] NO ALLOWABLE LIMITS FOUND ON SRM FOR CRACK ON SPECIFIC INTERCOSTAL PART TO BE REMOVED AND REPLACED PER SRM 51-10-02-0G-0 PAR.9.C;[02] REMOVED INTERCOSTAL BS294.5-312 RBL16 WL208-WL200 I.A.W SRM 51-40-02-0G-0;[03] LOCATED AND DRILLED NEW INTERCOSTAL BS294.5-312 RBL16 WL208-WL200 I.A.W SRM 51-40-05-0G-0 AND BOEING DWG 141A5400 OK TO INSTALL;[04] VERIFIED CORRECTIVE ACTION ITEMS 1 THROUGH 3. VERIFIED PART DRILLED PER SRM 51-40-05-0G-0 AND BOEING DWG 141A5400. OK TO INSTALL GIVEN.;[05] INSTALLED INTERCOSTAL ON BS 294.5-312 RBL20 WL 208 IAW SRM 51-40-05-0G-0 AND BOEING DWG 141A5400;[06] VERIFIED CORRECTIVE ACTION ITEM 5.;[07] VERIFIED CORRECTIVE ACTION ITEM 5