# SDR DU4R2006407

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 24, 2006
- Submitted: May 2, 2006
- Operation: Air carrier
- Filed by: [AAR Aircraft Services, LLC, repair station DU4R141M](https://openairdocs.org/faa-repair-station/DU4R141M/aar-aircraft-services-llc.md) (OpenAirDocs)
- Aircraft: N628DL
- Make and model: Boeing 757232
- Aircraft serial: 22918
- Aircraft time: 62,935 hours, 31,000 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Floor Support
- Condition: Corroded
- Location: Bs 1640-1681
- 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/DU4R2006407

## Discrepancy

FOUND CORROSION ON FLOOR STRUCTURE AT R-4 DOOR BETWEEN BS 1640 AND BS 1681.  REMOVED CORRODED FLOOR SUPPORT.  FABRICATED AND INSTALLED FORMED SECTION REPAIRS 3.5" BY 2.25" BY 1" AND 3-9/16" BY 1-5/8" BY 11/16" FROM 7075-T6 .080" AND 1-3/4" BY 5/8" AND 1-3/8" BY 1" FROM 7075-T6 .071" IAW B757 SRM 51-20-01, 51-30-01 AND 51-40-02.

---
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.