# SDR SWAA051928

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 2, 2005
- Submitted: July 7, 2005
- Operation: Air carrier
- Aircraft: [N428WN](https://openairdocs.org/aircraft/N428WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 29844
- Aircraft time: 10,026 hours, 5,612 cycles
- System (JASC): [3417 · Air Data Computer](https://openairdocs.org/jasc/3417)
- Part: Adc
- Part number: C17001BA01
- Part serial: 3140
- Condition: Faulty
- Location: E/E Bay
- Stage of operation: CR
- How discovered: O
- Nature of condition: G
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA051928

## Discrepancy

AIR TURNBACK.  DUAL EEC LIGHTS ILLUMINATED FOLLOWED BY LOSS OF F/O MAP MODE, BOTH FMC'S, BOTH FLIGHT DIRECTORS & BOTH AUTO PILOTS.  REMOVED AND REPLACED LT PITOT AIR DATA MODULE PER MM.

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