# SDR UIEA2013021900101

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 4, 2013
- Submitted: February 19, 2013
- Operation: Air carrier
- Aircraft: [N476MC](https://openairdocs.org/aircraft/N476MC), registered now
- Make and model: Boeing 747-47UF
- Registry model: [Boeing 747-47UF](https://openairdocs.org/model/boeing-747-47uf) (OpenAirDocs)
- Aircraft serial: 29256
- Aircraft time: 60,080 hours, 10,360 cycles
- System (JASC): [5420 · Nacelle/Pylon Miscellaneous Structure](https://openairdocs.org/jasc/5420)
- Part: Support Channel
- Part number: 323H2387127
- Condition: Cracked
- Location: Nr 4 Nacelle
- 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/UIEA2013021900101

## Discrepancy

NR 4 PYLON CASE DRAIN MODULE SUPPORT CHANNEL,  S/E SIDE FOUND CRACKED.NR 4 PYLON CORE DRAIN MODULE SUPPORT CHANNEL FABRICATED IAW BS NO R1-94-00-10147 AND REPLACED IAW SRM 51-10-02

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