Service difficulty report · Sidewall Support · Boeing 7377H4

Difficulty date
September 1, 2022
Submitted
October 6, 2022
Operation
Air carrier
Aircraft
N952WN
Make and model
Boeing 7377H4
Aircraft serial
36667
Aircraft time
39,061 hours, 23,816 cycles
Part
Sidewall Support
Condition
Cracked
Location
Aft Cargo Bay
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

AFT CARGO BAY FLOOR TO SIDEWALL SUPPORT HAS CRACK BS927+13 RBL20. / [01] VERIFIED SRM 53-00-53-1A-2 IS APPLICABLE FOR REPAIR.<BR><BR>SIDEWALL SUPPORT AT BS887 TO BS947 RH;FOUND TO BE OUT LIMITS FOR CRACK;IAW SRM 53-00-53-1A-2;PARAG. 4(1) DETAIL C;D FIG.103.IDENTIFICATION MATERIAL FOR ZEE SIDEPLATE IS BAC 1496-377 7075-T62;IAW SRM 53-70-53-0I-2 TABLE 2.;[02] VERIFIED CORRECTIVE ACTION 1;[03] LOCATED A DRILLED NEW FLOOR TO SIDEWALL SUPPORT ITEM: BAC1496-377 LOT: 1500263-1 BS 887 - BS 947 RBL20. IAW B 737-700 PER SRM 51-40-05-0G-0 DWG 147A7501.- OK TO TREAT AND PRIME.-;[04] VERIFIED CORRECTIVE ACTION 3.<BR>OK TO TREAT AND PRIME;[05] APPLIED CHEMICAL CONVERSION COATING AND PRIMER ON FLOOR TO SIDEWALL AT ACB BS 887 - BS 947 RBL20.- IAW 737-700; AMM 51-21-72-370-804; AMM 51-21-41-370-802;[06] VERIFIED CORRECTIVE ACTION #5.;[07] VERIFIED RII INSPECTION REQUIREMENTS ARE MET.;[08] VERIFIED WORKSCOPE COMPLETE AND MEASUREMENT TABLE.

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