# SDR AALA202011169013

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 20, 2020
- Submitted: November 16, 2020
- Operation: Air carrier
- Aircraft: [N509AY](https://openairdocs.org/aircraft/N509AY), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 3796
- Aircraft time: 41,202 hours, 14,785 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Support
- Part number: D53480043207
- Condition: Corroded
- Location: Frames 66-67
- 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/AALA202011169013

## Discrepancy

AIRCRAFT IN BASE MAINTENANCE.  FOUND CORROSION ON LOWER SILL RIGHT SIDE LOCATED AT FR 66 AT AFT GALLEY AREA.  MEASURE OF CORROSION IS L=0.884 INCH, W= 0.834 INCH, D=0.073 INCH.  REPAIRED LOWER SILL, REF SRM 53-41-14-300-001 PRINCIPLE 9.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.