# SDR SWAA2024100228396

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 20, 2024
- Submitted: October 2, 2024
- Operation: Air carrier
- Aircraft: [N7852A](https://openairdocs.org/aircraft/N7852A), registered now
- Make and model: Boeing 737-71B
- Registry model: [Boeing 737-71B](https://openairdocs.org/model/boeing-737-71b) (OpenAirDocs)
- Aircraft serial: 29371
- Aircraft time: 51,472 hours, 32,335 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Condition: Corroded
- Location: Zone 200
- 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/SWAA2024100228396

## Discrepancy

AFT FLOOR STRUCTURE - MULTIPLE SPOTS CORROSION ON UPPER FLANGE FLOOR BEAM BS 987; LBL 5; LBL 14.75; LBL 19; LBL 22; LBL 26; LBL 27; LBL 29; LBL 32; LBL 35; LBL 38; LBL 43 WL 208 (MARKED)<[01] BS 986 FLOOR BEAM UPPER FLANGE LBL 5- LBL43; WL 208 WILL BE REPAIRED ON CUSTOM CARD TTG8Q00VBFUH;[02] COMPLETE;[03] VERIFIED CORRECTIVE ACTION STEP 1. TASK CARD COMPLETE.

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