# SDR CALA2018120202455

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 29, 2018
- Submitted: December 2, 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): [5313 · Fuselage Main, Longeron/Stringer](https://openairdocs.org/jasc/5313)
- Part: Stringer
- Part number: D5348013120001
- Condition: Corroded
- Location: Fuselage
- 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/CALA2018120202455

## Discrepancy

STR 40R TO STR 41R BETWEEN FR 67-FR 68 HAS MULTIPLE CORRODED FASTENERS. REMOVED AND REPLACED FASTENERS AT STR 40R BETWEEN FR 67-FR 68. BLENDED CORROSION AT STR 41R BETWEEN FR 67-FR 68.  FOUND TO BE OUT OF LIMITS. REMOVED AND REPLACED STR 41R AT FR 64-FR 69. RESTORED SURFACE PROTECTION IAW A320 SRM 51-72-11-911-001, SRM 51-7 4-00-001.

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