Service difficulty report · Support · Boeing 7377H4

Difficulty date
July 15, 2021
Submitted
August 2, 2021
Operation
Air carrier
Aircraft
N962WN
Make and model
Boeing 7377H4
Aircraft serial
36963
Aircraft time
33,006 hours, 20,057 cycles
Part
Support
Condition
Cracked
Location
Bs 500a
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

FWD CARGO BAY L/H FLOOR TO SIDEWALL SUPPORT IS CRACKED AT BS 500A W/L 156 LBL 24 ; / [01] REMOVED CRACKED LH FLOOR TO SIDEWALL SUPPORT FCB BS 500A W/L 156 LBL 24 IAW SRM<BR>51-40-02-0G-0 STEP 4; E; FIGURE 8; [02] FABRICATED NEW FLOOR TO SIDEWALL<BR>SUPPORT AND SPLICE OUT OF MATERIAL BAC 1496-444 7075-T6 LOT#1453146-2 IAW SRM 53-<BR>00-53-2R-5; DWG 143A7501 ID 115; SRM; 51-40-05-0G-0 SRM 51-40-08-0G-0; [03] VERIFIED; [04] VERIFIED FABRICATION OF NEW FLOOR TO SIDEWALL<BR>SUPPORT AND SPLICE OUT OF MATERIAL BAC 1496-444 7075-T6 LOT#1453146-2 IAW SRM 53-00-53-2R-5; DWG 143A7501 ID 115; SRM 51-40-05-0G-0 & SRM 51-40-08-0G-0.; [05] APPLIED A CHEMICAL CONVERSION COATING TO THE MANUFACTURED PARTS IAW SRM 51-20-01 AND SRM 53-00-53-2R-5 STEP 4.

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