Service difficulty report · Floorbeam · Boeing 7378H4

Difficulty date
May 15, 2024
Submitted
June 14, 2024
Operation
Air carrier
Aircraft
N8572X
Make and model
Boeing 7378H4
Aircraft serial
64251
Aircraft time
19,855 hours, 10,226 cycles
Part
Floorbeam
Part number
UNKNOWN
Condition
Corroded
Location
Bs 947 Rbl 50
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

FLOOR STRUCTURE FLOOR BEAM AT MOUNT FITTING BS 947 RBL 50 HAS A SMALL AREA OF CORROSION AT MOUNT FITTING BASE<[01] REMOVED CORROSION ORIG. .180; MATERIAL LOSS .015; REMAINING .165 FOUND TO BE OUT OF LIMITS DUE TO LOCATION AT HARD POINT RBL 51 REF B737-NG SRM 53-70-51-1A-1 PARA GRAPH 1. C. AND BAC1518-1212 TOOL # T8224M DUE 07 NOV 24; REMOVED DAMAGE TO FLAT SURFACE; HFEC AND DVI NO DEFECTS NOTED; REMOVED ADDITIONAL 0.002 IN. MATERIAL; ROTO PEENED AREA; RESTORED COATINGS; AND INSTALLED REF B737-NG SRM 53-70-51-2R-8 ALTERNATIVE 3;[02] REMOVED CORROSION ORIG. .180; MATERIAL LOSS .015; REMAINING .165 FOUND TO BE OUT OF LIMITS DUE TO LOCATION AT HARD POINT RBL 51 REF B737-NG SRM 53-70-51-1A-1 PARA GRAPH 1. C. AND BAC1518-1212 TOOL # T8224M DUE 07 NOV 24; REMOVED DAMAGE TO FLAT SURFACE; HFEC AND DVI NO DEFECTS NOTED; REMOVED ADDITIONAL 0.002 IN. MATERIAL; ROTO PEENED AREA; RESTORED COATINGS; AND INSTALLED REF B737-NG SRM 53-70-51-2R-8 ALTERNATIVE 3<BR>VERIFIED ACCOMPLISHMENT.

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