Service difficulty report · Bulkhead · Boeing 7377H4

Difficulty date
May 18, 2021
Submitted
June 28, 2021
Operation
Air carrier
Aircraft
N207WN
Make and model
Boeing 7377H4
Aircraft serial
34012
Aircraft time
52,378 hours, 31,227 cycles
Part
Bulkhead
Condition
Cracked
Location
Bs 663
Stage of operation
IN
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 ON B.S. 663 LOWER COMPOSITE BULKHEAD AT L.B.L. 32; W.L. 150. ; / [01] REMOVED VAPOR BARRIER AT L/H SIDE BS 663 LOWER AEREA PER SRM 51-40-02-0G-0; [02] FABRICATED VAPOR BARRIER IAW DWG 111A1151-3 AND ATSHFAB-101-209 PO NUMBER 783269; LOCATED AND DRILLED VAPOR BARRIER AT BS 663 L/H SIDE PER 51-40-05 AND DWG 111A1001; [03] VERIFIED FABRICATION OF VAPOR BARRIER IAW DWG 111A1151-3 AND ATSHFAB-101-209 PO NUMBER 783269 IS COMPLETE WITH THE EXCEPTION OF 2 HOLES NOT DRILLED NOTED ON FAULT TTG8Q0055KU8; [04] FABRICATED VAPOR BARRIER IAW DWG 111A1151-3 AND ATSHFAB-101-209 PO NUMBER 783269; LOCATED AND DRILLED VAPOR BARRIER AT BS 663 L/H SIDE PER 51-40-05 AND DWG 111A1001; [05] VERIFIED FABRICATION VAPOR BARRIER IAW DWG 111A1151-3 AND ATSHFAB-101-209 PO NUMBER 783269; LOCATED AND DRILLED VAPOR BARRIER AT BS 663 L/H SIDE PER 51-40-05 AND DWG 111A1001; [06] OK TO INSTALL VAPOR BARRIER AT L/H SIDE AND ALL REPAIR PARTS; [07] OK TO INSTALL VAPOR BARRIER.; [08] INSTALLED VAPOR BARRIER AT BS 663 L/H SIDE PER SRM 51-40-02-0G-0 AND DWG 111A1000; DWG 111A10001; DWG 1117000;DWG 144A7100;

More about the Boeing 737-7H4