# SDR SWAA2024100331347

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 27, 2024
- Submitted: October 3, 2024
- Operation: Air carrier
- Aircraft: [N497WN](https://openairdocs.org/aircraft/N497WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32479
- Aircraft time: 65,870 hours, 39,201 cycles
- System (JASC): [5347 · Fuselage, Seat/Cargo Attach Fittings](https://openairdocs.org/jasc/5347)
- Part: Cargo Track
- Condition: Corroded
- Location: Zone 100
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2024100331347

## Discrepancy

CORROSION SPOT AT AFT CARGO FLOOR STRUCTURE RAIL (RBL 3) STA 767 + 5'.<[01] FOUND CORROSION DAMAGE ON PREVIOUS REPAIR AT STA. 767+5'; RBL 3; WL 156.4; NO ALLOWABLE DAMAGED; REMOVED PREVIOUS REPAIR AT STA. 767+5'; RBL 3; WL 156.4 PER REF. SRM 51-40-02-0G-0 AND SRM 53-00-53-2R-2<BR>RECEIVED MACHINED EXTRUSION P/N:53-00-53-2R WORK ACCOMPLISHED BY PRIMER AEROSPACE CORP. REF53-00-53-2R-2<BR>FABRICTED LOCATED AND DRILLED NEW REINFORCING CHANNEL MATERIAL BAC1510-13557050-T7611 PO#2084940 REF SRM 53-00-53-2R-2 FIG 208 AND 51-40-05-0G-0<BR>TREATED AND PRIME AT REPAIR PART REF AMM 51-21-41-370-802 AND 51-21-72-370-804<BR>INSTALLED REPAIR PART (REINFORCING CHANNEL) AT STA 767 + 5' RBL 3 PER REF SRM 53-00-53-2R-2;[02] VERIFIED STEP#1.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.