# SDR IPXA2024041599046

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 27, 2024
- Submitted: April 16, 2024
- Operation: Air carrier
- Aircraft: [N451UP](https://openairdocs.org/aircraft/N451UP), registered now
- Make and model: Boeing 757-24APF
- Registry model: [Boeing 757-24APF](https://openairdocs.org/model/boeing-757-24apf) (OpenAirDocs)
- Aircraft serial: 27739
- Aircraft time: 39,272 hours, 22,529 cycles
- System (JASC): [5310 · Fuselage Main, Structure](https://openairdocs.org/jasc/5310)
- Part: Tee Fitting
- Part number: 144N50055
- Condition: Corroded
- Location: Unknown
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/IPXA2024041599046

## Discrepancy

*** SUPPLEMENTAL SDR *** FAULT:  THE CROSS-FLOOR SUPPORT TIE AT STA 1060 LBL ZERO HAS INITAIL SIGNS OF CORROSION.  DOT 39-03 INSTALLED SUPPORT FLOOR P/N 144N5005-5 I.A.W. SRM 51-40-02 FASTENRES USED:MS20426AD3-12 BTCH: 0004238822, BACN10JZ3A2U BATCH:004200335.

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