Service difficulty report · None · Boeing 737

Difficulty date
December 2, 2021
Submitted
April 28, 2022
Operation
Air carrier
Aircraft
N234WN
Make and model
Boeing 737
Aircraft serial
32502
Aircraft time
52,359 hours, 31,270 cycles
Part
None
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

SUPPLEMENTAL INFORMATION: CORROSION ON LATERAL BEAM AT FLIGHT DECK BS270 LBL10 TO RBL9 WL207.5. MARKED. ; / [01] REMOVED CORROSION ON LATERAL BEAM BS270 LBL10-RBL10 WL207.5 20'X1' AREA I.A.W SRM 53-10-51-1A-1 ALLOWABLE DAMAGE 1 PAR 4.C(2)(A) FIG 105/ALLOWABLE DAMAGE 1 DETAILS C;E; [02] VERIFIED CORROSION REMOVED AT LATERAL BEAM BS270 LBL10-RBL10 WL207.5 20'X1' AREA I.A.W SRM 53-10-51-1A-1.; [03] REMOVED SUPPORT CHANNEL BS259-BS270 LBL3-RBL3 WL207.54 I.A.W SRM 51-40-02-0G-0; [04] EDDY CURRENT INSPECTED BLENDED AREA IN ACCORDANCE WITH 737 NDT MANUAL PART 6; 51-00-00 PROCEDURE 23. NO CRACKS FOUND. EDDY CURRENT INSPECTED OPEN HOLES IN ACCORDANCE WITH 737 NDT MANUAL PART 6; 51-00-00 PROCEDURE 16. NO CRACKS FOUND. EDDY CURRENT INSPECTED OPEN HOLE COUNTERSINKS IN ACCORDANCE WITH 737 NDT MANUAL PART 6; 53-30-00 PROCEDURE 3. NO CRACKS FOUND. UT INSPECTED FOR REMAINING THICKNESS IN ACCORDANCE WITH 737 NDT MANUAL PART 4; 51-00-00 PROCEDURE 2. LOWEST READING NOTED IS .040 INCH.<BR><BR>TOOL I.D. ATS1465 OLYMPUS NORTEC 600<BR>TOOL I.D. ATS1411 OLYMPUS MINIMITE ROTARY SCANNER<BR>TOOL I.D. ATS2341 OLYMPUS EPOCH 650; [05] REPAIRED DAMAGE ON LATERAL BEAM AT FLIGHT DECK BS 270; LBL 10 TO RBL 9; WL 207.5 PER EA M-21-153-00277.; [06] VERIFIED REPAIRED DAMAGE ON LATERAL BEAM AT FLIGHT DECK BS 270; LBL 10 TO RBL 9; WL 207.5 PER EA M-21-153-00277.