Service difficulty report · Beam · Boeing 7377H4

Difficulty date
June 2, 2023
Submitted
July 3, 2023
Operation
Air carrier
Aircraft
N295WN
Make and model
Boeing 7377H4
Aircraft serial
32541
Aircraft time
51,370 hours, 30,880 cycles
Part
Beam
Part number
UNKNOWN
Condition
Corroded
Location
Zn 200 Fus Top
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

CORROSION ON PASSENGER CABIN FLOOR BEAM AT BS 986; RBL 20 - RBL 24 AND LBL 44; WL 208.<[01] NO LIMITS FOUND FOR PREVIOUS REPAIR A REVIEW OF AIRCRAFT MAINTENANCE RECORDS CONFIRMS THAT AS PER NRC N215090 THE PREVIOUSLY INSTALLED REPAIR IS DOCUMENTED AS BEING ACCOMPLISHED PER EA-1-753-35334 ENGINEERING RECOMMENDS TO REMOVE AND REPLACED THE DAMAGED BREPAIR PARTS PER 737-700 SRM 51-40-02-0G-0 AS SHOWN IN EA 1-753-35334 WITHOUT ANY DEVIATION;[02] REMOVED PREVIOUS DAMAGE T-CHORD REPAIR AND SPLICES BS986 LBL50-RBL50 WL208-WL206 I.A.W SRM 51-40-02-0G-0;[03] VERIFIED CORRECTIVE ACTION STEPS 1 AND 2.

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