# SDR SRXR201808180020

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 18, 2018
- Submitted: August 18, 2018
- Operation: Air carrier
- Filed by: [STE San Antonio Aerospace Inc, repair station SRXR430X](https://openairdocs.org/faa-repair-station/SRXR430X/ste-san-antonio-aerospace-inc.md) (OpenAirDocs)
- Aircraft: [N412SN](https://openairdocs.org/aircraft/N412SN), registered now
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48412
- Aircraft time: 70,480 hours, 14,244 cycles
- System (JASC): [5412 · Nacelle/Pylon, Bulkhead/Firewall](https://openairdocs.org/jasc/5412)
- Part: Bulkhead
- Part number: AUB77593
- Condition: Cracked
- Location: Nr 1 Nacelle
- Part time: 70,480 hours, 14,244 cycles
- 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/SRXR201808180020

## Discrepancy

NR 1 PYLON CENTER STRUCTURE BULKHEAD, INBD SIDE WAS CRACKED AT YN 307.  ACCOMPLISHED A REPAIR ON THE PYLON BULKHEAD IAW EA 011-5450-52-A7385, I/R.

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