# 5.3 Before Start

### PM Flow

- Beacon → ON
- Doors → CLOSED
- Fuel Pumps → ON
- APU BLEED → ON

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</div>### 🔹 PF Flow

- Confirm pushback clearance
- Brief start sequence

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</div>### ✅ Before Start Checklist

- Doors → CLOSED
- Beacon → ON
- APU BLEED → ON
- Fuel Pumps → ON