# SDR IPXA10562683

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 2, 2010
- Submitted: September 22, 2010
- Operation: Air carrier
- Aircraft: [N424UP](https://openairdocs.org/aircraft/N424UP), registered now
- Make and model: Boeing 757-24APF
- Registry model: [Boeing 757-24APF](https://openairdocs.org/model/boeing-757-24apf) (OpenAirDocs)
- Aircraft serial: 25369
- Aircraft time: 22,227 hours, 14,706 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Retainer
- Part number: HFAB53RT011
- Condition: Corroded
- Location: Bs 1661-1681.8
- 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/IPXA10562683

## Discrepancy

INSPECTION TYPE:C3, SECTION 46, MAIN DECK FLOOR STRUCTURE HAS BARE METAL AT BS 1661-BS 1681.8 LBL 57- LBL 61. AREA OF SEVERE CORROSION (EXFOLIATION) BS 1650 LBL 61, .85 X.65" DIAMETER. DAMAGE EXCEEDS ALLOWABLE DAMAGE IAW SRM 53-60-13-1A, SHEET 5.  REMOVED, FABRICATED AND INSTALLED NEW MAIN DECK FLOOR STRUCTURE (CREASE BEAM RETAINER) IAW SRM 51-40-02-0G, AMM 51-21-10-7, SRM 51-10-02-0G DWG 146N5064.

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