# SDR IPXA2021101474947

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 21, 2021
- Submitted: October 15, 2021
- Operation: Air carrier
- Aircraft: N259UP
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48417
- Aircraft time: 87,734 hours, 18,447 cycles
- System (JASC): [5540 · Rudder Structure](https://openairdocs.org/jasc/5540)
- Part: Rudder
- Part number: NMC6017517
- Part serial: 48417
- Condition: Corroded
- Location: Upper Fwd Rudder
- 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/IPXA2021101474947

## Discrepancy

INSPECTION TYPE:3CUPPER RUDDER TEE ON L/E RIB AT ZFR 450.173 IS CORRODED.REMOVED AND REPLACED CORRODED UPPER RUDDER L/E RIB AT ZFR 450.173 IAW SRM 51-33-01 & 51-35-01. (MINOR)

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