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Octol1ttle edited this page Dec 2, 2025 · 12 revisions

Introduction

During gameplay, FlightAssistant performs a variety of safety and consistency checks. If a check fails, an alert is triggered.

When an alert is triggered, it will appear either on the Alert Display or below the crosshair, accompanied by a sound.

Alerts, their visibility, and their sound volume are fully configurable. Most alerts can be disabled or set to display visually only if they feel intrusive.

Alerts can be temporarily hidden or shown via keybinds
(default: Numpad 0 to hide, Numpad . to show).

List of alerts

Below is a list of alerts in alphabetical order (with some grouped exceptions), sorted by category. Each entry includes an explanation and, where applicable, recommended actions.

ALERT

SYS FAULT (SOME ALERTS LOST)

Full text: ALERT SYS FAULT (SOME ALERTS LOST)

Appears when a fault occurs inside the alert system itself. Details are available in the log.
This issue may sometimes be resolved by resetting the Alert Computer.

AUTO FLT (Autoflight)

AP OFF

There are two variations of this alert:

  1. AUTO FLT AP OFF

Appears when the autopilot is intentionally disconnected by the player. This alert is purely informational and disappears after 3 seconds.

  1. AUTO FLT AP OFF
     -AP DISC KEY: PUSH TO SILENCE
    

Triggered when the autopilot disconnects due to:

  • Significant manual control inputs
  • Loss of flight protections (see F/CTL PROTECT LOST)
  • Entering an unloaded chunk
  • An Auto Flight Computer fault (see AUTO FLT SYS FAULT)

The alert remains active and audible until:

  • The Autopilot Disconnect keybind is pressed
  • The Global Automation Override keybind is held
  • The autopilot is re-enabled

A/THR OFF

Full text: AUTO FLT A/THR OFF

Appears when autothrust disconnects due to:

  • Loss of flight protections (F/CTL PROTECT LOST)
  • Entering an unloaded chunk
  • Auto Flight Computer fault (AUTO FLT SYS FAULT)

The alert remains until autothrust is re-enabled or the player makes a manual thrust input.

HDG CTL FAULT

Full text: AUTO FLT HDG CTL FAULT

Appears when the Heading Computer encounters a fault and can no longer control heading.
The horizontal flight director becomes stuck and should not be followed.

The alert clears when the Heading Computer is reset, but may recur.

PITCH CTL FAULT

Full text: AUTO FLT PITCH CTL FAULT

Appears when the Pitch Computer encounters a fault and can no longer control pitch.
The vertical flight director becomes stuck; no automations are available while the fault persists.

The alert clears when the Pitch Computer is reset, but may recur.

ROLL CTL FAULT

Full text: AUTO FLT ROLL CTL FAULT

Appears when the Roll Computer encounters a fault and can no longer control camera roll.
If a roll mod affects flight physics, autopilot performance may degrade.

The alert clears when the Roll Computer is reset, but may recur.

SYS FAULT

Full text: AUTO FLT SYS FAULT

Appears when the Auto Flight Computer encounters a fault.
Autopilot and autothrust are disconnected, but flight protections remain available.

Clears after resetting the Auto Flight Computer (may reappear).

ELYTRA

CRIT DURABILITY

Full text: ELYTRA CRIT DURABILITY

Appears when estimated remaining flying time is < 30 seconds.

LOW DURABILITY

Full text: ELYTRA LOW DURABILITY

Appears when estimated remaining flying time is < 90 seconds (1:30).

STATUS FAULT

Full text: ELYTRA STATUS FAULT

Appears when the Elytra Status Computer encounters a fault.

While active:

  • Elytra durability is not shown
  • Durability alerts are unavailable
  • Automatic Elytra deployment is unavailable

Clears after resetting the Elytra Status Computer (may reappear).

FRWK (Firework)

MAIN HAND EXPLOSIVE

Full text: FRWK MAIN HAND EXPLOSIVE

Appears when the firework(s) held in the main hand are explosive.

OFF HAND EXPLOSIVE

Full text: FRWK OFF HAND EXPLOSIVE

Appears when the firework(s) held in the offhand are explosive.

NO RESPONSE

Full text: FRWK NO RESPONSE

Appears when a firework is used (manually or via automation) but fails to provide a boost within 1.5 seconds.

Clears once a firework successfully boosts the player.

SLOW RESPONSE

Full text: FRWK SLOW RESPONSE

Appears when the average firework response time exceeds 0.5 seconds.

FRWK SYS FAULT

Full text: FRWK SYS FAULT

Appears when the Firework Computer encounters a fault.
Firework protections are unavailable, and fireworks cannot be used as a thrust source for automation.

Clears after reset (may reappear).

F/CTL (Flight controls)

PITCH LIMIT FAULT

Full text:

F/CTL PITCH LIMIT FAULT
 -AUTOMATION OVERRIDE: USE

Appears when the Pitch Computer can no longer compute or enforce pitch limits.

In some cases, pitch limits may stop updating but remain enforced, severely restricting maneuverability.
Use the Global Automation Override keybind until the issue is resolved.

Clears after resetting the Pitch Computer (may reappear).

PROTECT LOST

Full text:

F/CTL PROTECT LOST
 -AIR DATA: OFF THEN ON
 -PITCH SYS: OFF THEN ON
 -PROT SYS: OFF THEN ON
 MAX PITCH: 45* UP
 MIN PITCH: 35* DOWN
 MANEUVER WITH CARE

Appears when any of the following systems are disabled or faulted:

  • Air Data Computer
  • Pitch Computer
  • Flight Protections Computer

Pitch protections are fully unavailable.

Recommended limits:

  • Max positive pitch: 45° (avoids stalls)
  • Max negative pitch: -35° (avoids hazardous descent rates)

Clears once all related computers are enabled and not faulted.

F/PLAN (Flight plan)

ARRIVAL ELEV DISAGREE

Full text:

F/PLAN ARRIVAL ELEV DISAGREE
 G/S UNRELIABLE
 -AUTOPILOT: DO NOT USE

Appears when the entered arrival elevation does not match the actual highest terrain elevation at the arrival coordinates.
The glide slope becomes unreliable, and the autopilot will follow the incorrect slope in G/S mode.

Only visual landings are considered safe.

Clears after entering the correct arrival elevation or when actual elevation cannot be determined.

DEPART ELEV DISAGREE

Full text: F/PLAN DEPART ELEV DISAGREE

Appears when the entered departure elevation does not match actual terrain elevation at departure coordinates.

Clears after entering the correct departure elevation or when elevation cannot be determined

DESCENT TOO STEEP

Full text: F/PLAN DESCENT TOO STEEP

Appears when the flight plan contains a descent steeper than 35 degrees.

OBSTACLES ON PATH

Full text: F/PLAN OBSTACLES ON PATH

Appears when obstacles are detected along the planned route.

SYS FAULT

Full text: F/PLAN SYS FAULT

Appears when the Flight Plan Computer encounters a fault.

While active:

  • Automatic waypoint progression is disabled
  • Automatic takeoff, landing, and go-around are unavailable
  • Time-to-waypoint is not calculated

Clears after reset (may reappear).

GPWS (Ground Proximity Warning System)

BELOW G/S

Two variations exist:

  1. Caution (slow blink, quieter "GLIDE SLOPE" voice)
    Appears when descending > 5 blocks below the glide slope.

  2. Warning (fast blink, loud "GLIDE SLOPE" voice)
    Appears when:

    • The player is closer to the ground than to the glide slope, or
    • Below minimums and > 2.5 blocks below the glide slope.

DON'T SINK

Appears when the player begins descending during takeoff or go-around.

FAULT

Full text: GPWS FAULT

Appears when the Ground Proximity Computer encounters a fault.
Ground proximity alerts and radar altitude calculation are unavailable.

MINIMUMS REACHED

Full text: GPWS MINIMUMS REACHED

Appears when descending below minimums during landing.

Clears once the flight plan is no longer in the landing phase.

PULL UP

Appears when imminent impact with terrain is detected and significant damage is likely.

SINK RATE

Appears when descending > 10 blocks/second near the ground and accumulating fall damage

TERRAIN AHEAD

Appears when moving toward terrain at a speed that would result in kinetic damage.

NAV (Navigation)

AIR DATA FAULT

Full text: NAV AIR DATA FAULT

Appears when the Air Data Computer encounters a fault.
Most systems become unavailable, though HUD data remains reliable.

Clears after reset (may reappear).

APPR.ING VOID DMG ALT

Full text: NAV APPR.ING VOID DMG ALT

Appears when the player is within 16 blocks of the void damage altitude.

REACHED VOID DMG ALT

Full text: NAV REACHED VOID DMG ALT

Appears when the player is < 1 block above void damage altitude.

CHUNK STATUS FAULT

Full text: NAV CHUNK STATUS FAULT

Appears when the Chunk Status Computer encounters a fault.
Chunk loading alerts are unavailable.

Clears after reset (may reappear).

NO CHUNKS LOADED

Full text: NAV NO CHUNKS LOADED

Appears when:

  • No chunks are loaded in a 3×3 area around the player and
  • At least one chunk is missing in a 7×7 area around the player.

SLOW CHUNK LOADING

Full text: NAV SLOW CHUNK LOADING

Appears when any chunk in the 7×7 area around the player is not loaded.

VOID PROX FAULT

Full text: NAV VOID PROX FAULT

Appears when the Void Proximity Computer encounters a fault.
Void proximity alerts and protections are unavailable.

Clears after reset (may reappear).

STALL

DETECT FAULT

Full text: STALL DETECT FAULT

Appears when the Stall Computer encounters a fault.
Stall alerts and protections are unavailable.

Clears after reset (may reappear).

STALL

Two variations:

  1. Caution (slow blink, stick shaker)
    Appears when angle of attack exceeds 90°.

  2. Warning (fast blink, "STALL" voice + cricket)
    Appears when angle of attack exceeds 90° and the player is descending >10 blocks/second.

THRUST

SYS FAULT

Full text: THRUST SYS FAULT

Appears when the Thrust Computer encounters a fault.
Automatic thrust management and thrust-related protections are unavailable.

LOCKED

Full text:

THRUST LOCKED
 -THR CTRL KEYS: USE

Appears when the Thrust Computer was controlling thrust but is no longer doing so.
Thrust remains locked at the last commanded value.

Use thrust control keybinds to adjust thrust manually.

NO SRC AVAIL

Full text: THRUST NO SRC AVAIL

Appears when thrust above or below idle is commanded, but no available thrust source can achieve the command.

REVERSE NOT SUPPORTED

Full text:

THRUST REVERSE NOT SUPPORTED
 -THR: SET FORWARD

Appears when reverse thrust is commanded but the active thrust source does not support it.
Set thrust to idle or forward thrust.

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