# SDR IPXA2018060130225

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 22, 2018
- Submitted: June 1, 2018
- Operation: Air carrier
- Aircraft: [N257UP](https://openairdocs.org/aircraft/N257UP), registered now
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48451
- Aircraft time: 73,942 hours, 14,897 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Intercostal
- Part number: AGA71779
- Condition: Cracked
- Location: Bs 1781-1801
- 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/IPXA2018060130225

## Discrepancy

DURING REMOVAL OF THE PNEUMATIC DUCT IAW NRC 379144,  FOUND AN INTERCOSTAL GOUGED & CRACKED,  BS 1781 - 1801.  FABRICATED A REPLACEMENT INTERCOSTAL IAW DWG AGA7177.  AND INSTALLED.

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