# SDR AALA202106141077

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 6, 2021
- Submitted: June 14, 2021
- Operation: Air carrier
- Aircraft: [N139AN](https://openairdocs.org/aircraft/N139AN), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 6687
- Aircraft time: 17,675 hours, 6,712 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Support
- Part number: D5348004320600
- Condition: Corroded
- Location: Frms 37-38 S23l
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202106141077

## Discrepancy

AIRCRAFT IN BASE MAINTENANCE: CORRODED AREA AT LOWER SILL BETWEEN FR 67 TO FR 68 AT LEVEL OF STR 23 L IN PASSENGER CABIN. L=0.876 INCH, W=0.792 INCH, D=0.058 INCH. REPAIRED LOWER SILL PER A321 SRM 53-41-14-300-001.

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