Service difficulty report · Rail · Boeing 7377H4

Difficulty date
February 3, 2023
Submitted
March 2, 2023
Operation
Air carrier
Aircraft
N404WN
Make and model
Boeing 7377H4
Aircraft serial
27892
Aircraft time
72,784 hours, 43,149 cycles
Part
Rail
Condition
Corroded
Location
Zn 100 Fus Lower
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 AFT CARGO BAY RAIL AT RBL 3 BS 767+6 WL 156<[01] CORROSION ON RAIL WAS FOUND TO BE OUT OF LIMITS DUE BEING COMMON TO AN EXISTING REPAIR.;[02] VERIFIED CORRECTIVE ACTION STEP 1.;[03] VERIFIED APPLICABILITY IAW SRM 51-10-02-0G-0 AND SRM 53-00-53-2R-3;[04] REMOVED; LOCATED AND DRILLED REINFORCING CHANNEL ON AFT CARGO BAY RAIL AT RBL 3; BS 767+6; WL 156 IAW SRM 51-40-02-0G-0 AND SRM 53-00-53-2R-3. OK TO INSTALL;[05] INSTALLED REINFORCING CHANNEL ON AFT CARGO BAY RAIL AT RBL 3; BS 767+6; WL 156 IAW SRM 51-40-02-0G-0 AND SRM 53-00-53-2R-3.;[06] CONCUR WITH APPLICABILITY OF SRM 51-10-02-0G-0 AND SRM 53-00-53-2R-3.<BR>VERIFIED CORRECTIVE ACTION ITEM 4.<BR>PROVIDED OKAY TO INSTALL OF REPAIR PART GIVEN PRIOR TO INSTALLATION.<BR>VERIFIED MEASUREMENT TABLE COMPLETED.;[07] RII VERIFIED CORRECTIVE ACTION ITEM 5.

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