Service difficulty report · Frame · Boeing 7377H4

Difficulty date
October 6, 2022
Submitted
November 9, 2022
Operation
Air carrier
Aircraft
N201LV
Make and model
Boeing 7377H4
Aircraft serial
29854
Aircraft time
59,586 hours, 35,374 cycles
Part
Frame
Condition
Corroded
Location
Zn 100 Fus Lower
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

947 FRAME RBL 17-22 UPPER SURFACE IS CORRODED AND HAS GOUGE IN FRAME WL160 / FOUND TO BE OUT LIMITS I.A.W SRM 53-70-07-0L-1 FOR IDENTIFICATION AND SRM;53-00-07-1A-1.;[02] UPDATED MEASUREMENTS.;[03] VERIFIED CORRECTIVE ACTION #1<BR>VERIFIED MEASUREMENTS;[04] CUT AND REMOVE THE DAMAGED PART OF THE FRAME 947 RBL 17-22; WL160; P/N 147A1047-48 I.A.W SRM 53-00-07-2R-1;[05] VERIFIED CORRECTIVE ACTION #4;[06] ACCOMPLISHED HFEC INSPECTION OF DAMAGE CUTOUT NO CRACK NOTED IAW 737 NDTM PART 6; 51-00-00 PROCEDURE 23 TOOL# IS000680 CAL. DUE 04/2023.;[07] PARTIAL STEPS 1 TO 6;[08] REMOVED FRAME ACB AT BS 947 FROM RBL 26 TO LBL 26 IAW SRM 51-40-02-0G-0 PART WILL BE REPAIRABLE BY REPLACEMENT;[09] PARTIAL STEPS 7 TO 10;[10] LOCATED AND DRILLED NEW FRAME ACB AT BS 947 FROM RBL 26 TO LBL 26 IAW SRM 51-40-05-0G-0 DWG 147A1047 OK TO INSTALL;[11] VERIFIED CORRECTIVE ACTION 10.;[12] REJECTION STEP CREATED: FAILURE TYPE 'G' NOT ALLOWED FOR 'CORRODED' PRIMARY STRUCTURE. AMT MUST CHANGE IT TO 'CP' AND UPDATE NEW MEASUREMENT FIELDS.;[13] INSTALLED ACB FRAME BS 947; FROM RBL 26 TO LBL 26;WL 160 IAW SRM 51-40-02-0G-0 DWG#147A1047;[14] VERIFIED CORRECTIVE ACTIONS STEP 13.;[15] VERIFY STEPS 1 TO 11;[16] VERIFIED STEPS 1-10.;[17] ALL ITEMS ARE COMPLETED IN THIS CARD;[18] VERIFIED ALL STEPS COMPLETE.

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