# SDR SWAA2022060902039
- 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/SWAA2022060902039
## Discrepancy
CRACK ON AFT CARGO BAY RAIL AT RBL 14 BS 747. / [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] VERIFIED CORRECTIVE ACTION 1 AND 2.;[04] REMOVED RAIL AT AFT CARGO BAY RBL 14 BS 727 TO BS 887 MIAW RSM 51-40-02-0G-0;[05] RECEIVED NEW KIT SEAT TRACK PN 654A0004-1350 FROM STORES REF PO 865229.
LOCATED AND DRILLED TRACK IAW SRM 51-40-05 AND DWG 146A7500.;[06] OK TO INSTALL NEW SEAT TRACK;[07] UPDATE CORRECTIVE ACTION 4 AND 5: RECEIVED NEW KIT CARGO TRACK TIE DOWN BTW B/S 727 TO B/S 887 RBL 14 P/N 654A0004-1350 FROM STORES REF P/O 865229. LOT#1489150
LOCATED AND DRILLED TRACK IAW SRM 51-40-05 AND DWG 146A7500. REV:-.OK TO INSTALL;[14] INSTALLED NEW CARGO TRACK ON AFT CARGO BAY BETWEEN BS 727+4 TO BS 887; RBL 14 IAW SRM 51-40-02-0G-0 AND DWG 146A7500; ID: 0082; REV:-;[15] VERIFIED CORRECTIVE ACTION 14.
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