Service difficulty report · Support Angle · Boeing 7377H4

Difficulty date
June 21, 2021
Submitted
August 4, 2021
Operation
Air carrier
Aircraft
N940WN
Make and model
Boeing 7377H4
Aircraft serial
36900
Aircraft time
39,596 hours, 24,067 cycles
Part
Support Angle
Condition
Cracked
Location
Bs 663 Bulkhead
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

B.S. 663 LOWER COMPOSITE BULKHEAD VERTICAL 'L' ANGLE SUPPORT IS CRACKED AT L.B.L. 27; W.L. 150. ; / [01] UPDATED MEASUREMENT TABLE; [02] REMOVED BS 663 LWR VAPOR BARRIER VERTICAL 'L' ANGLE SUPPORT LBL27 WL150 IAW SRM 51-40-02.; [03] LOCATED AND DRILLED NEW VERTICAL ANGLE SUPPORT LBL27 WL150 PO# 796986/1 PER SRM 51-40-05-0G-0 AND DWG 111A1000; [04] VERIFIED LOCATED AND DRILLED NEW VERTICAL ANGLE SUPPORT LBL27 WL150 PO# 796986/1 PER SRM 51-40-05-0G-0 AND DWG 111A1000; [05] VERIFIED LOCATE AND DRILL OF NEW VERTICAL ANGLE SUPPORT AT LBL27 WL150 PO# 796986/1 PER SRM 51-40-05-0G-0 AND DWG 111A1000.; [06] OK TO INSTALL VERTICAL ANGLE SUPPORT; [07] OK TO INSTALL VERTICAL ANGLE SUPPORT; BS 663; LBL 27; WL 150; [08] INSTALLED 'L'ANGLE ON VAPOR BARRIER BS663 LBL27 IAW SRM 51-40-02-0G-0;DWG 111A1000 AND 111A1001.; [09] VERIFIED INSTALLATION OF 'L' ANGLE ON VAPOR BARRIER BS663; LBL27; IAW SRM 51-40-02-0G-0; DWG 111A1000 AND 111A1001; [10] VERIFIED STEPS COMPLETE.

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