# SDR AALA201901039023

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 18, 2018
- Submitted: January 3, 2019
- Operation: Air carrier
- Aircraft: [N978UY](https://openairdocs.org/aircraft/N978UY), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 5422
- Aircraft time: 50,000 hours, 20,000 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Door Sill
- Part number: D5348004320601
- Condition: Corroded
- Location: Frame 68
- 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/AALA201901039023

## Discrepancy

CORROSION FOUND ON THE L4 DOOR CUTOUT LOWER SILL AT FRAME 68, +Y1447.8. REPLACED THE DOOR SILL IAW SRM 51-42-11.

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