# SDR UIEA200800176

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 2, 2008
- Submitted: May 15, 2008
- Operation: Air carrier
- Aircraft: [N418MC](https://openairdocs.org/aircraft/N418MC), registered now
- Make and model: Boeing 747-47UF
- Registry model: [Boeing 747-47UF](https://openairdocs.org/model/boeing-747-47uf) (OpenAirDocs)
- Aircraft serial: 32840
- Aircraft time: 24,052 hours, 3,708 cycles
- System (JASC): [3251 · Steering Unit](https://openairdocs.org/jasc/3251)
- Part: Actuator
- Condition: Burned
- Location: Steering Sys
- 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/UIEA200800176

## Discrepancy

DURING THE "A"4 CHECK PDU 6R STEERING ACTUATOR WAS DISCOVERED TO HAVE BURN MARKS.  DEACTIVATED THE PDU AND PLACED ON DEFERRAL.  REF MEL 25-53-01 CAT D, DMI M08-036.  THIS ITEM IS CONSIDERED OPEN UNTIL THE PDU IS REPLACED.

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