# SDR USAA2012053000003

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 21, 2012
- Submitted: May 30, 2012
- Operation: Air carrier
- Aircraft: [N161UW](https://openairdocs.org/aircraft/N161UW), registered now
- Make and model: Airbus A321-211
- Registry model: [Airbus A321-211](https://openairdocs.org/model/airbus-a321-211) (OpenAirDocs)
- Aircraft serial: 1403
- Aircraft time: 39,755 hours, 14,328 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Sill
- Part number: D5348004800003
- 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/USAA2012053000003

## Discrepancy

S2 CHECK - LEVEL 2 INTERGRANULAR CORROSION ON L4 DOOR CENTER SILL SHAPE BETWEEN FR66 TO FR68, Z-500, Y1589.  REPLACED L4 DOOR CENTER SILL SHAPE BETWEEN FR66 TO FR68, Z-500, Y1589 IAW AIRBUS DRAWING 18D53480505.

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