# SDR AALA2020031149046

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 10, 2020
- Submitted: March 11, 2020
- Operation: Air carrier
- Aircraft: [N206UW](https://openairdocs.org/aircraft/N206UW), registered now
- Make and model: Boeing 757-2B7
- Registry model: [Boeing 757-2B7](https://openairdocs.org/model/boeing-757-2b7) (OpenAirDocs)
- Aircraft serial: 27808
- Aircraft time: 80,930 hours, 27,355 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Channel
- Part number: 146N53235
- 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/AALA2020031149046

## Discrepancy

AIRCRAFT IN BASE MAINTENANCE: CORROSION ON CABIN FLOOR LONGITUDINAL SUPPORT CHANNEL UPPER SURFACE HAS CORROSION BETWEEN BS 1660 AND BS 1681.8 AT BL 0. REPLACED CHANNEL PER SRM 53-00-51-1A AND 51-40-02.

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