Service difficulty report · Barrier · Boeing 7377H4

Difficulty date
December 28, 2021
Submitted
January 31, 2022
Operation
Air carrier
Aircraft
N233LV
Make and model
Boeing 7377H4
Aircraft serial
32501
Aircraft time
53,746 hours, 31,891 cycles
Part
Barrier
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

BS 663 LOWER COMPOSITE BULKHEAD IS CRACKED AT R.B.L. 36; W.L. 154. ; REMOVED BS 663 LOWER COMPOSITE BLKHD VAPOR BARRIER RBL8- RBL72 IAW SRM 51-40-02.; FABRICATED BS 663 RT VAPOR BARRIER IAW DRAWING 111A1151-4. LOCATED AND DRILLED NEW BS663 LOWER COMPOSITE BLKHD RBL8-RBL72 IAW SRM 51-40-05 AND DWG 111A1000. APPLIED FAYING SURFACE C-20 SEALANT IAW SRM 51-40-02 AND DWG 111A1000.; [07] 100% OF ALL PERMANENT OR TEMPORARY FASTENERS HAVE BEEN INSTALLED WITH FAYING SURFACE SEALED. INSTALLED BS 663 LOWER COMPOSITE BLKHD RBL8-RBL72 IAW SRM 51-40-02 AND DWG 111A1000.CAP SEALED FASTENERS ON AFT SIDE COMMON TO VAPOR BARRIER BS663RLH IAW SOPM 20-50-19; [12] STEP 11 SHOULD READ BS 663 R/H.

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