Service difficulty report · Floorbeam · Boeing 737890

Difficulty date
April 30, 2023
Submitted
May 22, 2023
Operation
Air carrier
Aircraft
N537AS
Make and model
Boeing 737890
Aircraft serial
35204
Aircraft time
41,376 hours, 11,986 cycles
Part
Floorbeam
Part number
147A55047
Part serial
NSN
Condition
Corroded
Stage of operation
IN
How discovered
V
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

GALLEY MOUNT FITTING @ STATION 947 LEFT SIDE CORRODED. GROUNDED - YES. REMOVED CORROSION ON FLOOR BEAM UNDER GALLEY MOUNT. ORIGINAL THICKNESS 0.180 IAW B737-800 SRM 53-70-51-0I-1. REMAINING THICKNESS 0.100, REMOVED 0.080. OUT OF LIMITS IAW B737-800 SRM 53-70-51-1A-1. CUT OUT DAMAGE TO UPPER FLANGE LBL 8 TO LBL 59+ FABBED 'T' CHORD, ANGLES, STRAPS, AND ERS IAW B737-800 SRM 53-70-51-2R-5 ALTERNATIVE 2. ALODINED IAW B737-800 SRM 51-20-01. PRIMED IAW BOEING SOPM 20-41-02. INSTALLED NEW 'T' CHORD, ANGLES, STRAPS, FILLERS, AND CLIPS IAW B737-800 SRM 53-70-51-2R-5 ALTERNATIVE 2.