Service difficulty report · Cargo Track · Boeing 7377H4

Difficulty date
July 14, 2021
Submitted
August 18, 2021
Operation
Air carrier
Aircraft
N444WN
Make and model
Boeing 7377H4
Aircraft serial
29839
Aircraft time
61,121 hours, 35,983 cycles
Part
Cargo Track
Condition
Corroded
Location
Bs 754
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 RAIL AT AFT CARGO BAY BS754 RBL3 WL156. ; / [01] CORROSION ON RAIL AT AFT CARGO BAY BS754 RBL3 WL156 IS OUT OF LIMITS DUE TO FASTENER HOLE PROXIMITY TO CORROSION PER SRM 53-00-53-1A-2 FIG. 103 DETAIL D; [02] UPDATED MEASUREMENTS; [03] CUTOUT DAMAGE:2.3'X.75' PER SRM51-10-02; [04] VERIFIED CORRECTIVE ACTION #3; [05] ACCOMPLISHED HFEC SURFACE SCAN INSP. TO AFT CARGO FLOOR RAIL CUTOUT AREA IAW B737 NDTM P6; 51-00-00 PROC 23. NO CRACKS NOTED. TOOL ID ATS1465; N600; [06] CUTOUT DAMAGE SECTION AT B.S. 754; 2.45' LENGTH PER SRM53-00-53-2R-2; [07] INSPECTED CUTOUT DAMAGE SECTION AT B.S. 754; 2.45' LENGTH PER SRM53-00-53-2R-2; [08] FABRICATED REPAIR CHANNEL BAC 1509-100146 <BR>7050-T76511<BR>LOT#1464335-1; [09] FABRICATED REPAIR CHANNEL BAC 1509-100146 <BR>7050-T76511<BR>LOT#1464335-1<BR>REPAIR SPLICES<BR>53100004-001<BR>BN 110233;

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