# SDR CALA2023062101968

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 20, 2023
- Submitted: June 22, 2023
- Operation: Air carrier
- Aircraft: [N69824](https://openairdocs.org/aircraft/N69824), registered now
- Make and model: Boeing 737-900ER
- Registry model: [Boeing 737-900ER](https://openairdocs.org/model/boeing-737-900er) (OpenAirDocs)
- Aircraft serial: 42179
- Aircraft time: 30,470 hours, 10,963 cycles
- System (JASC): [5300 · Fuselage Structure (General)](https://openairdocs.org/jasc/5300)
- Part: Beam
- Part number: 147A5506
- Condition: Corroded
- Location: Bs 986, Lbl 44
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2023062101968

## Discrepancy

(B737-53-3-0711) CORROSION ON MAIN DECK FLOOR BEAM UPPER CHORD A ROUND FASTENER HOLE BS 986, LBL 44

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