# SDR UIEA2012121000541

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 10, 2012
- Submitted: December 10, 2012
- Operation: Air carrier
- Aircraft: [N419MC](https://openairdocs.org/aircraft/N419MC), registered now
- Make and model: Boeing 747-48EF
- Registry model: [Boeing 747-48EF](https://openairdocs.org/model/boeing-747-48ef) (OpenAirDocs)
- Aircraft serial: 28367
- Aircraft time: 73,457 hours, 12,466 cycles
- System (JASC): [2797 · Flight Control System Wiring](https://openairdocs.org/jasc/2797)
- Part: Connector
- Condition: Contaminated
- Location: Flap Transmitter
- Stage of operation: CL
- How discovered: O
- Nature of condition: F, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2012121000541

## Discrepancy

ON DEPATURE EICAS MESSAGE "FLAPS DRIVE" APPEARED AND THE OTBD T/E FLAPS WOULD NOT RETRACT PAST 1 DEGREE OR EXTEND BEYOND 1 DEGREE.  RETURNED TO DEPARTURE.  MX FOUND THE LT OTBD FLAP POSITION TRANSMITTER ELECTRIC CONNECTOR WAS CONTAMINATED WITH DEICING FLUID.  THE CONNECTOR WAS CLEANED AND SYS OPERATED NORMALLY IAW THE AMM 27-51-00.  POSITION INDICATION OPERATED NORMALLY IAW AMM 27-58-00.  ACFT WAS RETURNED TO SERVICE WITH NO FURTHER FLAP ISSUES.

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