Service difficulty report · Floorbeam · Boeing 7377H4

Difficulty date
April 25, 2022
Submitted
May 31, 2022
Operation
Air carrier
Aircraft
N473WN
Make and model
Boeing 7377H4
Aircraft serial
33832
Aircraft time
60,134 hours, 35,574 cycles
Part
Floorbeam
Part number
147A55068
Condition
Corroded
Location
Aft Galley
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 986.5 RBL 5 AND WL 208. AFT GALLEY AREA 2022-207214 / [01] TOOL USED: ULTRASONIC THICKNESS GAUGE; PN:45MG; SN: 130064101; DUE DATE: 11-MAY-22;[02] EDDY CURRENT EQUIPMENT P/N: NORTEC500D; S/N: N500X12101V022235; DUE DATE: 03-JUN-22.;[03] TOOL USED P/N FPK-PRO-104 S/N PRO-3384 DUE DATE: 24 MAY 22;[04] REPAIRED FLOOR BEAM BS 986.5 LOC. AT THE RBL 1 TO RBL 9 AND WL 208.1 AFT GALLEY AREA I.A.W B737-700 SRM 53-70-51-2R-6 ALTERNATIVE 1; PARAGRAPH 4; TABLE 201 FIGURE 202; SEE INDIVIDUAL SIGN OFFS BELLOW.;[05] JOB COMPLETE

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