# SDR CALA2026090119139

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 13, 2025
- Submitted: September 1, 2026
- Operation: Air carrier
- Aircraft: [N27213](https://openairdocs.org/aircraft/N27213), registered now
- Make and model: Boeing 737824
- Aircraft serial: 28773
- Aircraft time: 85,045 hours, 31,534 cycles
- System (JASC): [5330 · Fuselage Main, Plate/Skin](https://openairdocs.org/jasc/5330)
- Part: Skin
- Part number: 147A31103
- 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/CALA2026090119139

## Discrepancy

EXTERNAL FUSELAGE AT LAV EXHAUST CUTOUT SKIN WAS CORRODED.  REPAIR ACCOMPLISHED IAW SRM 53-70-01-2R-3, REPAIR 3, TABLE 202, FIG 203.

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