Service difficulty report · Frame Splice · Boeing 7377H4

Difficulty date
July 13, 2022
Submitted
August 19, 2022
Operation
Air carrier
Aircraft
N202WN
Make and model
Boeing 7377H4
Aircraft serial
33999
Aircraft time
58,974 hours, 35,001 cycles
Part
Frame Splice
Condition
Corroded
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

CORROSION ON PASSENGER CABIN FRAME SPLICE AT BS 277 BL 0 STRINGER 1.(MARKED) / [01] NOT ALLOWABLE LIMITS FOUND ON SRM FOR BS277 FRAME SPLICE;SRM 51-10-02-0G-0 PAR. 9.C REPLACEMENT OF THE PART IS APPLICABLE;[02] REMOVED BS277 FRAME SPLICE LBL3-RBL3 WL287 I.A.W SRM 51-40-02-0G-0;[03] REQUEST UT THICKNESS IN BLENDED AREA;[04] UT INSPECTED BLENDED AREA IAW 737 NDTM PART 4 51-00-00 PROCEDURE 2.<BR>REMAINING MATERIAL THICKNESS IS 0.049' ADJACENT TO 0.051'. <BR>EQUIP USED: <BR>-EPOCH 650 ID: ATS2031 CAL DUE: 03/23;[05] CERTIFY;[06] OK TO INSTALL FRAME SPLICE.;[07] OK TO INSTALL;[08] INSTALLED FRAME SPLICE AT BS 277 BL 0 IAW SRM 51-40-02-0G-0; DWG 141A1110.;[09] VERIFIED CORRECTIV ACTION 8.;[10] VERIFIED THE MEASUREMENT TABLE.;[11] WORKSCOPE COMPLETE PER EA 22-153-02247.

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