Service difficulty report · Floorbeam · Boeing

Difficulty date
April 8, 2017
Submitted
January 21, 2022
Operation
Air carrier
Make and model
Boeing
Aircraft time
41,819 hours, 24,110 cycles
Part
Floorbeam
Part number
147A1501U14
Condition
Corroded
Location
Aft Cargo Bay
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

AFT CARGO COMPARTMENT STA 934 RBL 13; FLOOR SUPPORT RAIL IS CORRODED. / REMOVED CORROSION AT FLOOR SUPPORT RAIL STA 934 RBL 13 IAW B737 SRM 51-10-02-0G-0 STEP 15. ORIGINAL THICKNESS 0.080'. MAT LOSS IS 0.014'; MATERIAL REMAINING IS 0.066'. THE AREA FOUND TO BE OUT OF LIMITS IAW B737 SRM 53-00-53-1A-2 STEP 4A; LOCATED AND DRILLED NEW FLOOR RAIL PN 147A1501U14 IAW B737-700 SRM 51-40-05 AND DWG 147A7500 REV. B. INSTALLED NEW FLOOR RAIL IAW B737 SRM 51-40-02. CIC THE NEW FLOOR RAIL IAW B737 AMM 51-21-91-620-802. ATAG # GN0525