# SDR SWAA2024031450848

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 10, 2024
- Submitted: March 14, 2024
- Operation: Air carrier
- Aircraft: [N7873A](https://openairdocs.org/aircraft/N7873A), registered now
- Make and model: Boeing 737-7Q8
- Registry model: [Boeing 737-7Q8](https://openairdocs.org/model/boeing-737-7q8) (OpenAirDocs)
- Aircraft serial: 29350
- Aircraft time: 54,831 hours, 30,421 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Channel
- Part number: NOTREPORTED
- Condition: Corroded
- Location: Bs 727-727b
- 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/SWAA2024031450848

## Discrepancy

CORROSION FOUND AFT CARGO LH 'Z' CHANNEL FROM STA 727 TO STA 727B LBL 21 WL 155.5 HAS MULTIPLE SPOTS OF CORROSION.<[01] LH Z-CHANNEL FABRICATED FROM STA 727-847 LBL 21 WL 155.5 REFERENCE TASKCARD# TTG8Q00RLL1W;[02] VERIFIED STEP 1

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