Service difficulty report · Cargo Track · Boeing 7377H4

Difficulty date
May 2, 2022
Submitted
June 9, 2022
Operation
Air carrier
Aircraft
N477WN
Make and model
Boeing 7377H4
Aircraft serial
33988
Aircraft time
60,414 hours, 35,826 cycles
Part
Cargo Track
Condition
Cracked
Location
Aft Cargo
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

CRACK ON AFT CARGO BAY RAIL AT LBL 17 BS 727E. / [01] ENTERED MEASUREMENTS.;[02] SRM 53-00-53-1A-2 IS APPLICABLE FOR THIS DAMAGE EVALUATION.<BR>DAMAGE FOUND TO BE OUT OF ALLOWABLE DAMAGE LIMITS. CRACK IS LOCATED LESS THAN 20X FROM FASTENER. REF SRM 53-00 53-1A-2; 4B (1) (A) FIGURE 103 DETAIL C. REPAIR BT REPLACEMENT IAW SRM 51-10-02.;[03] COMPLETED STEP 1. HFEC INSPECTION.;[04] VERIFIED CORRECTIVE ACTION 1 AND 2;[05] REMUVED AFT CARGO BAY RAIL AT LBL 17 BS 727 T0 BS 847 1AW SRM 51-40-02-0G-0;[06] VERIFIED APPLICABILITY FOR CARGO TRACK REPAIR IAW SRM 53-00--53-2R-3 REPAIR 3 AND IDENTIFICATION IAW SRM 53-60-53-0I-2 IDENTIFICATION 2;[07] PERFORMED CUT-OUT THE CARGO TRACK BTW FRAMES AT B/S 727D+13' TO B/S 727E+9' LBL 17.24 IAW SRM 53-00--53-2R-3 REPAIR 3 ALTERNATIVE 1 FIGURE 203;[15] RECEIVED ; LOCATED AND DRILLED NEW CARGO P/N 146A7501-1 ; LOT #1490909-1 BTW B/S 727 TO B/S 847 LBL 17.24 IAW SRM 51-40-02 AND DWG I46A7500 REV:- .<BR>OK TO INSTALL;[16] VERIFIED CORRECTIVE ACTION 15.;[17] INSTALLED NEW CARGO P/N 146A7501-1 ; BTW B/S 727 TO B/S 847 LBL 17.24 IAW SRM 51-40-02 AND DWG I46A7500 REV:- .;[18] UPDATED MEASUREMENTS;[19] VERIFIED CORRECTIVE ACTION 17 AND VERIFIED MEASUREMENT TABLE.;[20] REQUESTED OK TO INSTALL IN STEP 11

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