Service difficulty report · Floorbeam · Boeing 737990

Difficulty date
March 10, 2018
Submitted
March 23, 2018
Operation
Air carrier
Aircraft
N309AS
Make and model
Boeing 737990
Aircraft serial
30857
Aircraft time
59,215 hours, 23,367 cycles
Part
Floorbeam
Part number
147A550414
Condition
Corroded
Location
Bs 947
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

AFT CABIN FLOORBEAM TEE CAP CORRODED AT BS 947, RBL 50. ACFT GROUNDED. REMOVED CORROSION AND FOUND TO BE OUT OF LIMITS IAW SRM 53-70-51. FABRICATED A REPAIR IAW SRM 53-70-51-2R-5. ALODINED IAW SRM 51-20-01. PRIMED IAW SOPM 20-41-02. INSTALLED REPAIR IAW SRM 53-70-51-2R-5. REMOVED AND REINSTALLED SURROUND STRUCTURE AND LAC MOUNT FITTING IAW SRM 51-40-02 AND DWG 147A5650, REV A.