Service difficulty report · Channel · Boeing 7377H4

Difficulty date
July 22, 2022
Submitted
August 22, 2022
Operation
Air carrier
Aircraft
N490WN
Make and model
Boeing 7377H4
Aircraft serial
32476
Aircraft time
59,880 hours, 35,571 cycles
Part
Channel
Condition
Corroded
Location
Cabin Floor
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 L/H MOPSILL HAS CORROSION BS 947-996; LBL 45-50; WL 208 / [01] REMOVED CORROSION ON AFT SERVICE DOOR MOP SILL AT B.S. 947-996 LBL45-50 W.L 208.1 P/N 147A8540-7 ;AREA OT=0.080;RT=0.068 ;L=26.700'W=1.700'' ;X=0.012 WITH DEPTH GAGE ID:ATS2678<BR>S/N:UNKNOWN<BR>DATE:04/2022<BR>DUE:04/2023. FOUND TO BE OUT OF LIMITS I.A.W SRM 53-70-15-1A-1FOR ALLOWABLE DAMAGE AND SRM 53-70-15-0I-1 FOR IDENTIFICATION AND IT WILL REPAIRABLE BY REPLACEMENT I.A.W 51-10-02-0G PAR 9C .;[02] REMOVED AFT SERVICE DOOR MOP SILL AT B.S. 947-996 LBL45-50 W.L 208.1 P/N 147A8540-7 I.A.W SRM 51-40-02-0G-0.;[03] VERIFIED CORRECTIVE ACTION #1.;[04] RECIVED NEW MOP SEAL ITEM 147A8540-7 LOT 1497046; LOCATED AND DRILLED NEW MOP SEAL AT LBL45-50 BS 897 TO 1016 W.L 208.1 ; IAW 737-700 SRM 51-40-05-0G-0 DWG 147A8501 OK TO INTALL.;[05] VERIFIED CORRECTIVE ACTION 4; OK TO INSTALL GIVEN.;[06] VERIFIED MEASUREMENT TABLE.;[07] INSTALLED NEW L/H MOPSILL AT BS 910 TO 1016; LBL 45-50 WL 208 IAW SRM 51-40-02-0G-0; DWG 147A8501; 147A0000 CARD IS COMPLETED;[08] CORRECTED ITEM 7 : INSTALLED NEW L/H MOPSILL AT BS 910 TO 1016; LBL 45-50 WL 208 IAW SRM 51-40-02-0G-0; DWG 147A8501 REV:C; 147A0000 CARD IS COMPLETED;[09] UPDATED PART USED;[10] VERIFIED CORRECTIVE ACTION #8;[11] VERIFIED CORRECTIVE ACTION #8

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