# SDR DALA12014313210

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 29, 2012
- Submitted: December 3, 2012
- Operation: Air carrier
- Aircraft: [N310NW](https://openairdocs.org/aircraft/N310NW), registered now
- Make and model: Airbus A320-211
- Registry model: [Airbus A320-211](https://openairdocs.org/model/airbus-industrie-a320-211) (OpenAirDocs)
- Aircraft serial: 121
- Aircraft time: 68,007 hours, 30,286 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Floor Support
- Condition: Corroded
- Location: Cabin
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA12014313210

## Discrepancy

DURING NON ROUTINE CHECK, FOUND FORWARD CABIN FLOORBEAM BETWEEN FR 18 TO FR 20 Y-254 UPPER FLANGE HAS CORROSION.  BLENDED AREA ON FLOOR SUPPORT Y-254 IAW SRM 51-74-00, ORIG MATERIAL 155"L=.36"W=1"D=.030".   NO ALLOWABLE DAMAGE WAS FOUND IN SRM. REPLACED FLOORBEAM, PN D5311282120020,  BATCH 0002363289 IAW SRM 51-42-11 & TRM 53-21-01..

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