Service difficulty report · Floorbeam · Boeing 7377CT

Difficulty date
June 1, 2021
Submitted
July 12, 2021
Operation
Air carrier
Aircraft
N7823A
Make and model
Boeing 7377CT
Aircraft serial
32749
Aircraft time
61,112 hours, 30,940 cycles
Part
Floorbeam
Condition
Corroded
Location
Bs 947
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; ON UPPER SURFACE; AT B.S. 947; R.B.L. 43-49; W.L. 208.1. ; / [01] REMOVED CORROSION ON FLOOR BEAM ON UPPER SURFACE AT B.S. 947 R.B.L. 43-49 W.L. 208.1 IN AREA OF 2.2' BY 6.0' PER SRM 53-70-51-1A-1 AND SRM 51-10-02-0G-0; [02] VERIFIED CORROSION REMOVED; [03] UT INSPECTED BLENDS IAW 737 NDTM PART 4 51-00-00 PROCEDURE 2; LOWEST THICKNESS = 0.149'.<BR><BR>CAL ID ATS2031 E650; [04] OUT OF LIMITS PER SRM 53-70-51-1A-1; [05] VERIFIED OUT OF LIMITS PER SRM.; [06] VERIFIED REPAIR OF BS947 RBL43-48 WL 208 UPPER CHORD ACCOMPLISHED PER EA 21-153-01608 FAULT TTG8Q0059PHH; [07] VERIFIED REPAIR OF BS947 RBL43-48 WL 208 UPPER CHORD ACCOMPLISHED PER EA 21-153-01608 FAULT TTG8Q0059PHH; [08] UPDATED MEASUREMENTS TABLE; [09] VERIFIED ALL STEPS COMPLETE.

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