> ## Documentation Index
> Fetch the complete documentation index at: https://www.narev.ai/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Climb and cruise

> Monitor climb events, check altimeter references and prepare the arrival before descent.

## Climb and cruise

Monitor the 10,000-ft, transition-altitude and pre-top-of-descent conditions separately. Use the assigned event schedule while retaining checklist item identity and document order. Do not defer an earlier transition-altitude event until the later 10,000-ft event.

Verify STANDARD mode, its pressure setting and the required independent altimeter agreement. Before top of descent, make the required arrival-route modification and verify the required navigation performance (RNP) for the arrival.

Maintain the assigned continuous flight, navigation and fuel monitoring throughout climb and cruise.

**1. At or above 10,000 ft: Landing lights — OFF**

**Condition:** At or above 10,000 ft.

When the stated condition is satisfied, select the applicable landing lights OFF. Verify the installed lights required by this item.

**2. At or above 10,000 ft: Passenger sign — As needed**

**Condition:** At or above 10,000 ft.

Resolve the required seat-belt and no-smoking/chime selections from mission context and installed configuration.

**3. At transition altitude: Altimeter — Set STANDARD**

**Condition:** At transition altitude.

At transition altitude, set STANDARD. Verify the pressure-reference mode and indicated setting.

**4. At transition altitude: Altimeter crosscheck — Verify**

**Condition:** At transition altitude.

Perform an independent altimeter comparison with assigned tolerances.

**5. Before top of descent: MOD route for arrival — As needed**

**Condition:** Before top of descent.

Prepare any required arrival-route modification from the approved arrival plan, review it on the control display unit (CDU) and execute only the intended change.

**6. Before top of descent: RNP for arrival — Verify**

**Condition:** Before top of descent.

Verify the approach/arrival RNP requirement using mission data and displayed navigation-performance information.

Continue with [Descent](https://www.narev.ai/docs/irl-gym/aircraft/descent.md) when its conditions apply.

## Detailed procedures

The following pages preserve each checklist item’s conditions, verification requirements and source identity.

* [Climb and cruise: conditions and verification](https://www.narev.ai/docs/irl-gym/aircraft/procedures/climb-and-cruise.md)


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