# SDR SWAA2022060902038
- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 2, 2022
- Submitted: June 9, 2022
- Operation: Air carrier
- Aircraft: [N477WN](https://openairdocs.org/aircraft/N477WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 33988
- Aircraft time: 60,414 hours, 35,826 cycles
- System (JASC): [5320 ยท Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Cargo Track
- Condition: Cracked
- Location: Aft Cargo
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2022060902038
## Discrepancy
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.
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:- .
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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