# SDR IPXA2026041366467

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 12, 2026
- Submitted: April 13, 2026
- Operation: Air carrier
- Aircraft: [N583UP](https://openairdocs.org/aircraft/N583UP), registered now
- Make and model: Boeing 747-4R7F
- Registry model: [Boeing 747-4R7F](https://openairdocs.org/model/boeing-747-4r7f) (OpenAirDocs)
- Aircraft serial: 25867
- Aircraft time: 138,372 hours, 23,378 cycles
- System (JASC): [5410 · Nacelle/Pylon, Main Frame](https://openairdocs.org/jasc/5410)
- Part: Cowling
- Condition: Cracked
- Location: Zone 400
- 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/IPXA2026041366467

## Discrepancy

NR 2 ENGINE INLET COWL  12 O CLOCK POS . CRACK MEASURES 11IN PART IS ON TABLE IN S/M SHOP. BEGAN REMOVAL OF INLET LIP SKIN SECTION. ALL RIVETS REMOVED. SOME TOPSIDE HI-LOKS REMOVED (HAVE TO BE DRILLED). IAW SRM 51-40-02

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