Service difficulty report · Beam · Boeing 737*

Difficulty date
February 8, 2022
Submitted
March 15, 2022
Operation
Air carrier
Aircraft
N465WN
Make and model
Boeing 737*
Aircraft serial
33829
Aircraft time
59,870 hours, 35,575 cycles
Part
Beam
Condition
Corroded
Location
Fwd Fuselage
Stage of operation
UK
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 LATERAL BEAM BS270 LBL4 WL207.5 / [01] REMOVED CORROSION ON LATERAL BEAM BS270; LBL4; WL 207.5; IAW SRM 51-10-02-0G-0; 1.640''X0.780''X0.020''DEEP; FOUND TO BE OUT OF LIMIT; IAW SRM 53-10-51-1A-1 PAR. 4.C.(2) FIG. 105;[02] CORRECTED: REMOVED CORROSION ON LATERAL BEAM BS270; LBL4; WL 207.5; IAW SRM 51-10-02-0G-0; 1.640''X0.780''X0.020''DEEP; FOUND TO BE OUT OF LIMIT; IAW SRM 53-10-51-1A-1 PAR. 4.C.(2) FIG. 105. TOOL USED: DEPTH GAGE ID ATS2472; NSN DUE 12/2022.;[03] VERIFIED CORRECTIVE ACTION ITEM 2.;[04] SUBMITTED TO ENGINEERING FOR REPAIR DISPOSITION.;[05] CORROSION ON LATERAL BEAM BS270 LBL4 WL207.5 WAS REPAIRED IAW EA M-21-153-00277;[06] VERIFIED CORRECTIVE ACTION #5