# SDR SWAA2023011984336

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 21, 2022
- Submitted: January 19, 2023
- Operation: Air carrier
- Aircraft: [N272WN](https://openairdocs.org/aircraft/N272WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32527
- Aircraft time: 52,973 hours, 31,748 cycles
- System (JASC): [5347 · Fuselage, Seat/Cargo Attach Fittings](https://openairdocs.org/jasc/5347)
- Part: Cargo Track
- Condition: Corroded
- Location: Bs 767 Lbl 3
- 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/SWAA2023011984336

## Discrepancy

CORROSION ON AFT CARGO,  CARGO TRACK, LBL 3, BS 767+6. EVALUATED REWORKED AREA AND FOUND OUT ALLOWABLE DAMAGE LIMITS IAW SRM 53-00-53-1A-2, ALLOWABLE DAMAGE 2, FIGURE 103, DETAIL D. REMOVED UPPER FLANGE OF JOGGLE AREA ON THE CARGO TRACK IAW SRM 53-00-53-2R-2, STEPS 4 D.  ACCOMPLISHED HFEC INSPECTION ALONG THE CUT EDGES IAW NDTM D6-37239, PART 6, 51-00-00, PROC 23, NO CRACKS FOUND.  FABRICATED, LOCATED, AND DRILLED A CHANNEL IAW SRM 51-40-05, AND SRM 53-00-53-2R-2, REPAIR 2, FIG 203. APPLIED CHEMICAL CONVERSION COATING ON REPAIR CHANNEL IAW SOPM 20-41-02.  APPLIED PRIMER ON THE REPAIR CHANNEL IAW SRM 51-20-01-0G-0.  INSTALLED THE REPAIR CHANNEL ON THE CARGO TRACK IAW SRM 53-00-53-2R-2, AND SRM 51-40-02-0G-0.

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