# SDR IPXA2017081220420

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 1, 2017
- Submitted: August 14, 2017
- Operation: Air carrier
- Aircraft: [N472UP](https://openairdocs.org/aircraft/N472UP), registered now
- Make and model: Boeing 757-24APF
- Registry model: [Boeing 757-24APF](https://openairdocs.org/model/boeing-757-24apf) (OpenAirDocs)
- Aircraft serial: 28843
- Aircraft time: 18,424 hours, 12,531 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Intercostal
- Part number: 149N712523
- Condition: Corroded
- Location: Bs 900
- 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/IPXA2017081220420

## Discrepancy

INSPECTION TYPE: C, LT FWD WING TO BODY FAIRING STRUTURES BS 900, LBL 31 INTERCOSTAL HAS CORROSION AND MISSING ONE NUTPLATE.REMOVED CORROSION IAW SRM 51-10-02-0G. DAMAGE FOUND TO BE OUT OF LIMITS IAW SRM 53-00-71-1A-1 FIG 101 DETAIL IX. FABRICATED NEW INTERCOSTAL AND INSTALLED IAW SRM 51-40-02-0G.

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