Service difficulty report · Frame · Boeing 7377H4

Difficulty date
June 15, 2022
Submitted
July 14, 2022
Operation
Air carrier
Aircraft
N488WN
Make and model
Boeing 7377H4
Aircraft serial
33853
Aircraft time
59,468 hours, 35,169 cycles
Part
Frame
Condition
Corroded
Location
Fuselage
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 AT BS 277 BETWEEN STRINGER 1 AND STRINGER 2L. / [01] CORROSION FOUND AT BS 277 FRAME SPLICE ANGLE BETWEEN STR 1 AND STR 2 FOUND TO BE OUT OF LIMIT DUE TO NO LIMIT ON SRM PARTS WILL BE REPAIRED BY REPLACEMENT IAW SRM 51-10-02-0G-0 PAR 9C;[02] VERIFIED CORRECTIVE ACTION #1;[03] REMOVED FRAME SPLICE ANGLE FROIM BS 277 BETWEEN STR 1 AND STR 2L IAW SRM 51-10-02-0G-0;[04] CORRECTION STEP-3 REMOVED FRAME SPLICE ANGLE FROM BS 277 BETWEEN STR 1 AND STR 2L IAW SRM 51-10-02-0G-0;[05] CORROSION REMOVED ON TOP SURFACE OF SPLICE FLANGE MEASURES L=5.'X W=0.9' MAX. MATERIAL LOSS 0.002' ' IAW SRM 51-10-02-0G-0; ORIGINAL THICKNESS IS 0.051' PER DWG#141A1121. <BR> ATTACHED GRID MAP = 0.050' X 0.050'.;[06] VERIFIED CORRECTIVE ACTION STEP 5.;[07] REFER TO EA 22-153-01915 SUMMARY REQUIREMENT; BARCODE: TTG8Q00DEN5Z;[08] ALL WORK ACCOMPLISHED IAW EA 22-153-01915;[09] VERIFIED ALL WORK ACCOMPLISHED IAW EA 22-153-01915. VERIFIED MEASUREMENT TABLE COMPLETED

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