# SDR IPXA2018041228477

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 8, 2018
- Submitted: April 13, 2018
- Operation: Air carrier
- Aircraft: [N581UP](https://openairdocs.org/aircraft/N581UP), registered now
- Make and model: Boeing 747-4R7F
- Registry model: [Boeing 747-4R7F](https://openairdocs.org/model/boeing-747-4r7f) (OpenAirDocs)
- Aircraft serial: 25866
- Aircraft time: 108,153 hours, 18,127 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Shear Web
- Part number: 65B14804138
- Condition: Corroded
- Location: Main Deck
- 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/IPXA2018041228477

## Discrepancy

INSPECTION TYPE: D2, CORROSION ON FOUND ON THE MAIN DECK FLOOR SHEAR WEB AT BS 500 - 520 , RBL 14 - RBL 35.  REPLACED IAW SRM 51-40-02-0G, REV 82, DWG 65B14804, SH 4, REV B,  DWG 65B14804, SH 14, REV A, AND DWG 65B14804, SH 15, ERV B.

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