# SDR CALA2018110902339

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 9, 2018
- Submitted: November 9, 2018
- Operation: Air carrier
- Aircraft: N420UA
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 489
- Aircraft time: 79,230 hours, 30,600 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Cover
- Part number: D5323058520007
- Condition: Corroded
- Location: Torsion Box
- 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/CALA2018110902339

## Discrepancy

FWD CARGO BAY ENTRY TORSION BOX COVER IS CORRODED IN MULTIPLE AR EAS. REMOVED AND REPLACED FWD CARGO BAY TORSION BOX COVER IAW A320 SR M 51-72-11-911-001.  AFTER CORROSION REMOVAL FOUND TO BE OUT OF LIMITS.  REMAINING THICKNESS .029 ALLOWABLE .051 IAW A320 SRM 51 -21-13-283-002.  AAR N/R 9019636. ADD EMP:V918825

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