# SDR CALA2025022700455

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 25, 2025
- Submitted: February 27, 2025
- Operation: Air carrier
- Aircraft: [N77518](https://openairdocs.org/aircraft/N77518), registered now
- Make and model: Boeing 737824
- Aircraft serial: 31605
- Aircraft time: 51,245 hours, 18,480 cycles
- System (JASC): [5313 · Fuselage Main, Longeron/Stringer](https://openairdocs.org/jasc/5313)
- Part: Stringer
- Part number: 144A261917
- Condition: Corroded
- Location: Zone 100
- 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/CALA2025022700455

## Discrepancy

FOUND CORROSION ON CHORD AT L/H STA 727 STR 18A AROUND FASTENER HOLE. REF AAR N/R 9937589. REMOVED AND REPLACED CHORD AT L/H SIDE STA 727 STR 18A AS PER SRM 51-4-02-0G-0 AND DWG 144A2600.

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