Service difficulty report · Floorbeam · Boeing 7377H4

Difficulty date
October 17, 2022
Submitted
November 15, 2022
Operation
Air carrier
Aircraft
N207WN
Make and model
Boeing 7377H4
Aircraft serial
34012
Aircraft time
56,256 hours, 33,707 cycles
Part
Floorbeam
Condition
Corroded
Location
Bs 986 Rbl 5
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. @ FASTENER HOLE FLOOR BEAM STA 986.5 RBL-5 MKD DOT / [01] REMOVED CORROSION AT FASTENER HOLE FLOOR BEAM STA 986.5 RBL-5 AS PER REFERENCE B737-700 SRM 51-10-02-0G-0;[02] VERIFIED STEP 1.;[03] PERFORMED UT THICKNESS INSP. ON REWORKED AREA @ FASTENER HOLE FLOOR BEAM STA 986.5 RBL-5 IAW B737 NDT PART 4 51-00-00 PROC. 3. MIN THICKNESS .116'; EQUIP: OLYMPUS 27MG CAL DUE: 4/23 B/C 172139;[04] JOB WILL BE ACCOMPLISHED IN THE ITEM TTG8Q00FKDE6. PER REF EA M-21-153---612;[05] JOB WILL BE ACCOMPLISHED IN THE ITEM TTG8Q00FKDE6. PER REF EA M-21-153-00612;[06] VERIFIED STEP 5.

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