# SDR CALA2023102303137

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 10, 2023
- Submitted: October 23, 2023
- Operation: Air carrier
- Aircraft: [N16217](https://openairdocs.org/aircraft/N16217), registered now
- Make and model: Boeing 737824
- Aircraft serial: 28777
- Aircraft time: 77,783 hours, 28,258 cycles
- System (JASC): [5330 · Fuselage Main, Plate/Skin](https://openairdocs.org/jasc/5330)
- Part: Skin
- Part number: 143A32322
- Condition: Corroded
- Location: Sta 500i
- 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/CALA2023102303137

## Discrepancy

OUT OF SCOPE FINDING, LOWER FUSELAGE SKIN AT STA 500I BULGING AROUND FASTENER HEADS. POSSIBLE CORROSION BETWEEN SKIN AND ATTACHING FUSELAGE FRAME THAT NEEDS EVALUATION. LOCATED JUST AFT OF A/C DUCT CONNECTION INLET. (REF: AAR NR 99983376)

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