> ## 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.

# ILS landing — part 1

> ILS landing — part 1: conditions, actions and checks for the Boeing 737-800.

Use this procedure after [approach preparation](https://www.narev.ai/docs/irl-gym/aircraft/procedures/approach.md), with the ILS approach selected and its tuning and minimums verified. Confirm each required aircraft state before acknowledging the corresponding checklist item.

## General

Use this procedure for the selected ILS approach. Verify the runway, receiver tuning and identification, approach course, applicable minimums and aircraft configuration.

APP armed, localizer captured, glide slope alive and glide slope captured are separate conditions. Verify the appropriate active/armed flight modes and approach indications. APP-light illumination does not establish capture.

The configuration must support the required sequence. A GS-before-LOC option does not change the checklist order. Autoland configuration alone is not authority to perform a dual-channel landing.

This page covers approach arming, localizer capture and the configuration changes at glide slope alive. Continue to [part 2](https://www.narev.ai/docs/irl-gym/aircraft/procedures/ils-landing-2.md) for the steps at glide-slope capture, then [ILS autoland and rollout](https://www.narev.ai/docs/irl-gym/aircraft/autoflight/ils-autoland-and-rollout.md) for landing and stopping.

### 1. APP roll mode — **Arm**

Arm APP for the selected approach. Verify the applicable armed and active flight-mode indications.

> **Checks and evidence**
>
> **Expected response:** Arm
>
> **Verification:** Verify arming separately from later lateral/vertical capture.

### 2. Localizer capture — **Verify**

Verify the source’s lateral-capture requirement using active mode and signal/approach evidence, without treating APP arming as capture.

> **Checks and evidence**
>
> **Expected response:** Verify
>
> **Verification:** Require the valid active capture state for the approved approach interpretation.

### 3. At glide slope alive: Landing gear lever — **Down**

**Condition:** At glide slope alive.

When the stated condition is satisfied, select the landing gear lever DOWN. Verify the required lever position and gear indications.

> **Checks and evidence**
>
> **When:** At glide slope alive.
>
> **Expected response:** Down
>
> **Verification:** For DOWN, verify the required safe indications; for UP/OFF, require actual lever and gear-state evidence appropriate to that command.

### 4. At glide slope alive: Landing gear indicator — **3 green**

**Condition:** At glide slope alive.

Observe three independent green/safe gear indications.

> **Checks and evidence**
>
> **When:** At glide slope alive.
>
> **Expected response:** 3 green
>
> **Verification:** Require valid safe indications for nose, left and right gear using the applicable lamp decoding.

### 5. At glide slope alive: Flap lever — **15**

**Condition:** At glide slope alive.

When the stated condition is satisfied, select 15. Verify the required lever detent and actual flap/slat configuration.

> **Checks and evidence**
>
> **When:** At glide slope alive.
>
> **Expected response:** 15
>
> **Verification:** Verify the chosen lever detent and the required actual flap/slat configuration.

### 6. At glide slope alive: Engine start switches — **CONT**

**Condition:** At glide slope alive.

Select both engine start switches CONT. Verify both rotary-switch positions. These switches are separate from the fuel/start levers.

> **Checks and evidence**
>
> **When:** At glide slope alive.
>
> **Expected response:** CONT
>
> **Verification:** Require both applicable rotary-switch states.

### 7. At glide slope alive: Speedbrake lever — **Arm**

**Condition:** At glide slope alive.

Set the speedbrake lever to ARM. Use the applicable lever-detent conversion and verify the required position.

> **Checks and evidence**
>
> **When:** At glide slope alive.
>
> **Expected response:** Arm
>
> **Verification:** Confirm the required lever detent and, for ARM, the separate SPEEDBRAKE ARMED indication.

### 8. At glide slope alive: SPEEDBRAKE ARMED indicator — **Illuminate**

**Condition:** At glide slope alive.

Verify the distinct SPEEDBRAKE ARMED annunciator is illuminated after the arming step.

> **Checks and evidence**
>
> **When:** At glide slope alive.
>
> **Expected response:** Illuminate
>
> **Verification:** Require the actual ARMED lamp, not merely a lever/control ratio.

## Continue at glide-slope capture

Continue to [ILS landing — part 2](https://www.narev.ai/docs/irl-gym/aircraft/procedures/ils-landing-2.md). The source checklist links these parts without an additional transition condition; each step in part 2 still requires glide-slope capture.


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