# SDR CALA2018073001737

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 28, 2018
- Submitted: July 30, 2018
- Operation: Air carrier
- Aircraft: N418UA
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 485
- Aircraft time: 78,469 hours, 30,406 cycles
- System (JASC): [5313 · Fuselage Main, Longeron/Stringer](https://openairdocs.org/jasc/5313)
- Part: Stringer
- Part number: D534800302702
- 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/CALA2018073001737

## Discrepancy

CORROSION ON STGR 42L BETWEEN FR 70-69. AFTER BLENDING OF STR 42L BETWEEN FR 67-FR 69, FOUND STR 42L TO BE OUT OF LIMITS. REMOVED STR 42L BETWEEN FR 66-FR 69.  HOLES W ERE ROTO PROBED, NO DEFECTS NOTED.  REPLACED STR 42 L BETWEEN FR 66-FR 69 AND RESTORED SURFACE PROTECTION IAW A320 SRM 51-42-1 1-001, SRM 53-00-13-300-001, AND NTM 51-10-01.

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