# SDR SWAA2021011141038

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 7, 2021
- Submitted: January 28, 2021
- Operation: Air carrier
- Aircraft: [N7724A](https://openairdocs.org/aircraft/N7724A), registered now
- Make and model: Boeing 737-7BD
- Registry model: [Boeing 737-7BD](https://openairdocs.org/model/boeing-737-7bd) (OpenAirDocs)
- Aircraft serial: 36725
- Aircraft time: 36,671 hours, 19,328 cycles
- System (JASC): [5330 · Fuselage Main, Plate/Skin](https://openairdocs.org/jasc/5330)
- Part: Skin
- Condition: Corroded
- Location: Fuselage
- 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/SWAA2021011141038

## Discrepancy

CORROSION EXTERNAL SKIN BS 887 BETWEEN STR 23R AND 23L AT LOWER FUSELAGE / REMOVED CRROSION LOC ON EXTERNAL SKIN P1 STA 886TO STA 887BTW STR23R TO STR23L.THE MEASURE OF REWORKED IS L=77' W=1.875' AND P2 STA 887 TO STA 888 BTW STA 23R TO STR23L. THE MEASURE OF REWORKED IS L=77' W= 1.967' TOOL USED CALIPER 700-113-10 SN 002865 DUE DATE 10OCT21 AND FOUND WITHIN LIMITS IAW B737-700 P1 SRM 53-00-01-1A-5 PARAGRAPH 4A ITEM 2 DETAIL C;E TABLE 101 AND P2 SRM 53-00-01-1A-1 PARAGRAPH 4B ITEM2 DETAIL C E AND MINIMUN REMAINING THICKNESS ARE P1 0.076' P2 0.054'

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