Service difficulty report · Floorbeam · Boeing 75724APF

Difficulty date
January 11, 2025
Submitted
January 31, 2025
Operation
Air carrier
Aircraft
N420UP
Make and model
Boeing 75724APF
Aircraft serial
23907
Aircraft time
36,186 hours, 23,613 cycles
Part
Floorbeam
Part number
143N5045
Condition
Corroded
Location
Zone 200
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

FLOOR BEAM STA 560 BTWN RBL 45.5 AND RBL 24.75 IS CORRODED. DOT 142-325. VERIFIED EVALUATED DAMAGE IN FLOOR BEAM STA 560 BTWN RBL 45.5 AND 24.75 FOUND TO BE WITHIN LIMITS. GIVEN OK TO RESTORE SURFACE PROTECTION. RESTORED SURFACE PROTECTION IAW.SRM 51-20-01 AND AMM 51-21-15. MATERIAL USED ALODINE P/N ALODINE1132 BATCH 0004336881 PRIMER P/N 02-013-8 BATCH 4263196, WHITE P/N PG6-W2K4Q BATCH 4340857 AND 02 CUP 02-012-176.

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