# SDR AALA202011099020

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 31, 2020
- Submitted: November 9, 2020
- Operation: Air carrier
- Aircraft: [N128AN](https://openairdocs.org/aircraft/N128AN), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 6346
- Aircraft time: 20,088 hours, 5,560 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Support
- Part number: D5348004320600
- Condition: Corroded
- Location: Frames 67-68
- 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/AALA202011099020

## Discrepancy

AIRCRAFT IN BASE MAINTENANCE.  FOUND CORRODED AREA ON LOWER SILL BETWEEN FR 67 AND FR 68 AT STR 23L IN AFT GALLEY AREA, MEASURING L=1.005 INCH W=0.914 INCH D=0.040 INCH.  PERFORMED PERMANENT REPAIR ON LOWER SILL, IAW A321 SRM 53-41-14-300-001 FIGURE 001, REPAIR PRINCIPLE 5.

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