# SDR SWAA2021062369150

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 4, 2021
- Submitted: June 23, 2021
- Operation: Air carrier
- Aircraft: [N938WN](https://openairdocs.org/aircraft/N938WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 36645
- Aircraft time: 39,916 hours, 24,221 cycles
- System (JASC): [5347 · Fuselage, Seat/Cargo Attach Fittings](https://openairdocs.org/jasc/5347)
- Part: Cargo Track
- Condition: Corroded
- Location: Aft Cargo Bs 773
- 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/SWAA2021062369150

## Discrepancy

CORROSION ON RAIL AT AFT CARGO BAY BS773 RBL8 WL157. / REMOVED CORROSION ON ACB RAIL AT BS 773 RBL8 MEASURED 2.7'L X 0.1'W X AND 0.010' DEEP FOUND OUT OF LIMITS PER SRM 53-00-53-1A-2 REMOVED DAMAGED RAIL REPAIR PER SRM 51-40-02-0G-0 RECIVED REPLACEMENT RAIL CHENNEL; LOCATED AND DRILLED PER SRM 53-00-53-2R-2 NDI VERIFIED CRACK FREE CONDITION AND INSTALLED REPLACEMENT RAIL CHANNEL PER SRM 53-00-53-2R-2 57627U 20MAY21

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