# SDR SWAA2021072888225

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 26, 2021
- Submitted: July 28, 2021
- Operation: Air carrier
- Aircraft: [N7827A](https://openairdocs.org/aircraft/N7827A), registered now
- Make and model: Boeing 737-79P
- Registry model: [Boeing 737-79P](https://openairdocs.org/model/boeing-737-79p) (OpenAirDocs)
- Aircraft serial: 28255
- Aircraft time: 52,282 hours, 33,778 cycles
- System (JASC): [5314 · Fuselage Main, Keel](https://openairdocs.org/jasc/5314)
- Part: Keelbeam
- Condition: Corroded
- Location: Bs 727b
- 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/SWAA2021072888225

## Discrepancy

CORROSION ON KEEL BEAM RH LOWER FLANGE INBOARD SIDE LOCATED BTW BS 727B AND BS 727B PLUS 10 AT AFT CARGO COMPARTMENT ; 2021-288124 / [01] TOOL USED: DIGITAL CALIPER P/N: 700-113-10; S/N: 0033158; DUE DATE: 14/JUL/21; [02] TOOL USED P/N: NORTEC 600D; S/N: 60009161631; DUE DATE: 01-DEC-21; [03] SUMMARY EA 21-153-01870 HAS BEEN APPROVED; ACTIVATED; AND ADDED AS A SUBTASK TO THE FAULT BARCODE TTG8Q005LDN3.; [04] REPAIRED KEEL BEAM RH LOWER FLANGE INBOARD SIDE LOCATED BTW BS 727B AND BS 727B PLUS 10 AT AFT CARGO COMPARTMENT IAW EA 21-153-01870; 21-153- 01870-WIP1 AND 21-153-01870-WIP2. NOT FURTHER ACTION AND REINSPECTION REQUIRED.; [05] TASK CARD COMPLETE AND CERTIFIED AS RII.

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