# SDR SWAA2021120649603

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 2, 2021
- Submitted: December 6, 2021
- Operation: Air carrier
- Aircraft: N770SA
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 30589
- Aircraft time: 69,290 hours, 41,022 cycles
- System (JASC): [5330 · Fuselage Main, Plate/Skin](https://openairdocs.org/jasc/5330)
- Part: Skin
- Condition: Corroded
- Location: Fuselage
- Stage of operation: UK
- 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/SWAA2021120649603

## Discrepancy

FUSELAGE SKIN UNDER DORSAL HAS MINOR CORROSION SPOTS BS 882-893 LBL 6- RBL 5. 8-143.  REMOVED MINOR CORROSION ON AREAS IAW SRM 51-10-02-0G-0.   PERFORMED UT THICKNESS INSP ON REWORKED AREAS IAW NDT P4 51-00-00 PROC.3.  FOUND WITHIN LIMITS IAW SRM 53-00-01-1A-1 FIG. 103 A-A.   TREATED AND PRIMED AREAS IAW SRM-51-21-72-370-801.

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