# SDR COEA2010041704901

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 17, 2010
- Submitted: April 21, 2010
- Operation: Air carrier
- Aircraft: [N901FX](https://openairdocs.org/aircraft/N901FX), registered now
- Make and model: Aerosp ATR 42-320
- Registry model: [Aerosp ATR 42-320](https://openairdocs.org/model/aerospatiale-aeritalia-atr-42-320) (OpenAirDocs)
- Aircraft serial: 172
- Aircraft time: 29,408 hours, 32,349 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Part number: S53372411210
- 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/COEA2010041704901

## Discrepancy

HEAVY CK COE: LEVEL 2 CORROSION & MAJOR REPAIR:  FLT DECK, FLOORBEAM 13 RT SIDE HAS SEVERAL AREAS OF CORROSION BETWEEN 10.75 INCHES RIGHT OF BL 0 AND 10.75 INCHES LEFT OF BL 0 WITH MATERIAL LOSS BEYOND SRM LIMITS.  BLENDED CORROSION PER SRM AND SUBMITTED M70 TO ATR FOR SRAS.

---
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.