# SDR AALA202012039019

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 27, 2020
- Submitted: December 3, 2020
- Operation: Air carrier
- Aircraft: [N129AA](https://openairdocs.org/aircraft/N129AA), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 6401
- Aircraft time: 20,527 hours, 5,656 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Support
- Part number: D5348004320600
- 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/AALA202012039019

## Discrepancy

AIRCRAFT IN BASE MAINTENANCE.  FOUND CORRODED AREA ON LOWER SILL LOCATED ON FR 68 AT LEVEL STGR 23L AFT GALLEY AREA MEASURING L=0.900 INCH, W=0.700 INCH, D=0.060 INCH.  PERFORMED PERMANENT REPAIR ON LOWER SILL A321 SRM 53-41-14-300-001 PRINCIPLE 5 FIG 001 SHEET 3.  THIS REPAIR IS CATEGORY A.

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