Service difficulty report · Support · Boeing 7377H4

Difficulty date
August 9, 2021
Submitted
August 31, 2021
Operation
Air carrier
Aircraft
N965WN
Make and model
Boeing 7377H4
Aircraft serial
36677
Aircraft time
32,936 hours, 20,041 cycles
Part
Support
Condition
Cracked
Location
Bs 540
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

CRACKED FLOOR SUPPORT AT B.S. 540 B.L. 0 - L.B.L. 24.5; W.L. 208.1. ; / [01] NO LIMITS FOR CRACKS TO P/N 143A5240-33. REPAIR BY REPLACEMENT. IAW SRM CH 51-10-02 REMOVED DAMAGED SUPPORT IAW SRM CH 51-40-02 LOCATED AND DRILLED NEW SUPPORT IAW SRM CH 51-40-05. OK TO INSTALL.; [02] VERIFIED NO LIMITS FOR CRACKS TO P/N 143A5240-33. REPAIR BY REPLACEMENT. IAW SRM CH 51-10-02 REMOVED DAMAGED SUPPORT IAW SRM CH 51-40-02 LOCATED AND DRILLED NEW SUPPORT IAW SRM CH 51-40-05. OK TO INSTALL.; [03] INSTALLED SUPPORT AT BS 540 BL-0 THROUGH LBL 24.5 WL 208 IAW SRM CH 51-40-02. AND DRAWING # 143A0060 ID. 36; [04] VERIFIED INSTALLATION OF FLOOR SUPPORT AT BS 540 BL-0 THROUGH LBL 24.5 WL 208 IAW SRM 51-40-02; AND DRAWING # 143A0060 ID. 36; [05] VERIFIED JOB COMPLETE OF REPLACEMENT OF FLOOR SUPPORT AT BS 540 BL-0 THROUGH LBL 24.5 WL 208 IAW SRM 51-40-02; AND DRAWING # 143A0060 ID. 36

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