# SDR UIEA2025041400466

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 22, 2025
- Submitted: April 23, 2025
- Operation: Air carrier
- Aircraft: [N5113A](https://openairdocs.org/aircraft/N5113A), registered now
- Make and model: Boeing 737-83N
- Registry model: [Boeing 737-83N](https://openairdocs.org/model/boeing-737-83n) (OpenAirDocs)
- Aircraft serial: 32611
- Aircraft time: 58,992 hours, 31,573 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: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2025041400466

## Discrepancy

UPPER FUSELAGE MAIN CABIN, AT STA 986, BTWN RBL 50 AND LBL50, FLOOR BEAM UPPER FLANGE WITH CORROSION IN SEVERAL PLACES.(<P>REPAIRED FUSELAGE FLOOR BEAM AT STA 986.5, UPPER CHORD SECTION BETWEEN LBL 50" AND RBL 50" I/A/W  COOPESA COO-EO-2025-22114-R00 REV:00, DATED: APR 01-25 AND BOEING MESSAGE COO-TLS-25-004016B DATED APR:01-25. APPROVED AND DOCUMENTED ON F.A.A FORM 8100-9 REFERENCE ID 202503170131-0008 DATED APR 08-25. NOTE: THIS IS A DAMAGE TOLERANCE CATEGORY C REPAIR, AS DEFINED IN B-737-800 BFC S.R.M 51-00-06, WHICH REQUIRES THAT THIS REPAIR BE REPLACED OR MODIFIED TO A CATEGORY A OR B REPAIR WITHIN 3,000 FLIGHT CYCLES FROM REPAIR INSTALLATION, A/C CURRENT CYCLES: 31573.</P>)

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