# SDR TRBA2005057

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 4, 2005
- Submitted: October 3, 2005
- Operation: Air carrier
- Aircraft: N420AT
- Make and model: Aerosp ATR 72-212
- Registry model: [Aerosp ATR 72-212](https://openairdocs.org/model/aerospatiale-atr-72-212) (OpenAirDocs)
- Aircraft serial: 420
- Aircraft time: 20,984 hours, 22,358 cycles
- System (JASC): [6100 · Propeller System](https://openairdocs.org/jasc/6100)
- Part: Switch
- Part number: 11S76180650008
- Part serial: 0107
- Condition: Defective
- Location: Power Control
- Stage of operation: TO
- How discovered: O
- Nature of condition: O
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/TRBA2005057

## Discrepancy

AUTOMATIC TAKE-OFF POWER CONTROL SYSTEM (ATPCS) DID NOT ARM DURING TAKE-OFF POWER.  REPLACED DEFECTIVE SWITCH. (K)

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