Service difficulty report · Floorbeam · Boeing 7377H4

Difficulty date
March 9, 2022
Submitted
April 11, 2022
Operation
Air carrier
Aircraft
N468WN
Make and model
Boeing 7377H4
Aircraft serial
33858
Aircraft time
58,378 hours, 34,580 cycles
Part
Floorbeam
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 FLOOR BEAM BS 328 RBL 42 AND 54 WL 208. / [01] REMOVED FLOOR SUPPORT ANGLE AT BS 312 TO 328 R/H FOR ACCESS PER SRM 51-40-02-0G-0;[18] INSTALLED REPAIR PARTS ITEM 1(1EA);2(2EA);3(2EA);4(9);5(1);6(2EA)AND BRACKETS COMMON TO THE REPAIR LISTED ON CORRECTIVE ACTIONS 2-7 ALL I.A.W SRM 53-10-51-2R-7 REPAIR 7 ALTERNATIVE 2 PAR 4.O;[19] UPDATED TABLE MEASUREMENT;[20] VERIFIED CORRECTIVE ACTION 18.;[21] INSTALLED FLOOR SUPPORT ANGLE BS312-BS328 WL208 RBL 11 REMOVED ON CORRECTIVE ACTION 1 I.A;W SRM SRM 53-10-51-2R-7 REPAIR 7 PAR 4.S AND BOEING DWG 141A5400;[22] APPLIED FILLET SEAL PRIMED AND CIC TO REPAIR AREA I.A;W SRM SRM 53-10-51-2R-7 REPAIR 7 PAR 4.P-R COMPLETED ALL REPAIR PROCESS;[23] INSPECTED & VERIFIED CORRECTIVE ACTION ITEM 21.;[24] INSPECTED & VERIFIED CORRECTIVE ACTION ITEM 22.;[25] UPDATED MEASUREMENT TABLE;[26] VERIFIED COMPLETION.

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