# SDR CALA2018101302097

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 11, 2018
- Submitted: October 13, 2018
- Operation: Air carrier
- Aircraft: N422UA
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 503
- Aircraft time: 78,949 hours, 30,599 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Threshold
- Part number: D53475575258
- Condition: Corroded
- Location: Fuselage
- 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/CALA2018101302097

## Discrepancy

FR52-56 CARGO DOOR THRESHOLD SHEET HAS AREAS OF CORROSION A3NB-5 3-4-6179. REMOVED AND REPLACED AFT CARGO DOOR SILL THRESHOLD COVER SHEET BETWEEN FRAME 52 AND FRAME 56 IAW SRM 51-42-11-001.

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