{
  "open_checklist_version": "1.0",
  "id": "diamond-da40-180-emergency",
  "title": "Diamond DA40 180 — Emergency Procedures",
  "description": "Emergency procedures for the Diamond DA40 with 180-hp Lycoming IO-360 engine and constant-speed propeller. Memory items are marked accordingly. Contains no numeric limitations; all airspeeds and power settings must come from the specific aircraft POH/AFM. The IO-360 is fuel-injected — there is no carburetor and no carburetor heat system; carburetor ice is not applicable. A note is included in the carb-ice section for reference. DA40-specific considerations: canopy-style door that must be unlatched before forced landing; T-tail pitch characteristics at slow speed; composite airframe.",
  "aircraft": {
    "make": "Diamond",
    "model": "DA40",
    "variant": "180",
    "icao_type": "DA40",
    "category": "standard_normal",
    "engine": [
      {
        "make": "Lycoming",
        "model": "IO-360",
        "type": "piston_4stroke",
        "count": 1
      }
    ],
    "propeller": "constant_speed",
    "gear": "fixed_tricycle"
  },
  "units": {
    "airspeed": "kt",
    "altitude": "ft",
    "fuel": "usgal",
    "weight": "lb",
    "pressure": "inhg",
    "temperature": "f"
  },
  "provenance": {
    "source": {
      "kind": "none",
      "notes": "No manufacturer document consulted. Written from general familiarity with the Diamond DA40, Lycoming IO-360 fuel-injected engine, and constant-speed propeller emergency procedures."
    },
    "transcription": {
      "method": "authored",
      "tool": "claude-sonnet-4-6",
      "date": "2026-08-11"
    },
    "contributors": [
      {
        "name": "Open Checklists project",
        "role": [
          "author"
        ]
      }
    ],
    "revision": {
      "file_revision": "0.1.0",
      "updated": "2026-08-11"
    }
  },
  "verification": {
    "source_fidelity": "not_applicable",
    "operational_review": "none",
    "completeness": "partial",
    "known_issues": [
      {
        "severity": "safety_defect",
        "description": "Contains no airspeeds, power settings, or other numeric limits — all such values must come from the specific aircraft POH/AFM.",
        "location": "whole file"
      },
      {
        "severity": "safety_defect",
        "description": "Emergency checklists must be practiced and the memory items memorized. This file is an aide-memoire only. Aviate first, then navigate, then communicate.",
        "location": "whole file"
      },
      {
        "severity": "content_gap",
        "description": "Avionics configuration (G1000 vs steam-gauge) affects the information available during emergencies. Verify all procedures against the specific aircraft POH and supplements.",
        "location": "whole file"
      }
    ]
  },
  "rights": {
    "status": "original_expression",
    "corpus_license": "CC-BY-4.0",
    "redistribution": "attribution_required",
    "notes": "Diamond Aircraft POH/AFM remains under copyright. This file is independently authored and does not reproduce the wording or item selection of any manufacturer document."
  },
  "sections": [
    {
      "id": "engine-failure-before-rotation",
      "phase": "engine_failure_before_rotation",
      "criticality": "emergency",
      "title": "Engine Failure on Takeoff (Before or at Liftoff)",
      "items": [
        {
          "id": "engine-failure-before-rotation-1",
          "type": "action",
          "text": "Throttle",
          "response": "CLOSE IMMEDIATELY",
          "tickable": true,
          "memory_item": true
        },
        {
          "id": "engine-failure-before-rotation-2",
          "type": "action",
          "text": "Brakes",
          "response": "APPLY FIRMLY — STOP ON REMAINING RUNWAY OR OVERRUN",
          "tickable": true,
          "memory_item": true
        },
        {
          "id": "engine-failure-before-rotation-3",
          "type": "action",
          "text": "Mixture",
          "response": "IDLE CUT-OFF",
          "tickable": true,
          "memory_item": true
        },
        {
          "id": "engine-failure-before-rotation-4",
          "type": "action",
          "text": "Ignition switch",
          "response": "OFF",
          "tickable": true,
          "memory_item": true
        },
        {
          "id": "engine-failure-before-rotation-5",
          "type": "action",
          "text": "Fuel selector",
          "response": "OFF",
          "tickable": true,
          "memory_item": true
        },
        {
          "id": "engine-failure-before-rotation-6",
          "type": "action",
          "text": "Master switches (battery and alternator)",
          "response": "OFF",
          "tickable": true,
          "memory_item": true
        },
        {
          "id": "engine-failure-before-rotation-7",
          "type": "action",
          "text": "Canopy latch — if aircraft stops; unlatch to facilitate evacuation; exit promptly if fire risk exists",
          "response": "UNLATCH, EVACUATE UPWIND",
          "tickable": true
        }
      ]
    },
    {
      "id": "engine-failure-in-flight",
      "phase": "engine_failure_in_flight",
      "criticality": "emergency",
      "title": "Engine Failure in Flight",
      "items": [
        {
          "id": "engine-failure-in-flight-1",
          "type": "action",
          "text": "Best glide speed — establish immediately on sidestick; DA40 glides well; do not let airspeed decay",
          "response": "BEST GLIDE SPEED PER POH",
          "tickable": true,
          "memory_item": true
        },
        {
          "id": "engine-failure-in-flight-2",
          "type": "action",
          "text": "Suitable landing area — identify and turn toward best available option",
          "response": "LANDING AREA SELECTED",
          "tickable": true,
          "memory_item": true
        },
        {
          "id": "engine-failure-in-flight-3",
          "type": "action",
          "text": "Fuel selector — cycle from current position to opposite tank or BOTH",
          "response": "ALTERNATE TANK OR BOTH",
          "tickable": true,
          "memory_item": true
        },
        {
          "id": "engine-failure-in-flight-4",
          "type": "action",
          "text": "Mixture",
          "response": "RICH",
          "tickable": true,
          "memory_item": true
        },
        {
          "id": "engine-failure-in-flight-5",
          "type": "action",
          "text": "Throttle",
          "response": "SMOOTHLY ADVANCE; CHECK FOR ENGINE RESPONSE",
          "tickable": true,
          "memory_item": true
        },
        {
          "id": "engine-failure-in-flight-6",
          "type": "action",
          "text": "Ignition switch — check on BOTH; cycle if suspect",
          "response": "BOTH",
          "tickable": true
        },
        {
          "id": "engine-failure-in-flight-7",
          "type": "action",
          "text": "Primer (if equipped) — verify locked and seated",
          "response": "LOCKED",
          "tickable": true
        },
        {
          "id": "engine-failure-in-flight-8",
          "type": "action",
          "text": "Engine instruments — check for loss of oil pressure, high oil temperature, or other indication of cause",
          "response": "NOTED AND ACTED ON",
          "tickable": true
        },
        {
          "id": "engine-failure-in-flight-9",
          "type": "action",
          "text": "Restart — if conditions and altitude permit; attempt start per POH; do not persist if no response",
          "response": "ATTEMPTED IF SAFE",
          "tickable": true
        },
        {
          "id": "engine-failure-in-flight-10",
          "type": "action",
          "text": "Squawk 7700 — declare emergency on current frequency or 121.5",
          "response": "DECLARED",
          "tickable": true
        },
        {
          "id": "engine-failure-in-flight-11",
          "type": "action",
          "text": "If no restart — proceed with forced landing checklist",
          "response": "FORCED LANDING INITIATED",
          "tickable": true
        }
      ]
    },
    {
      "id": "engine-fire-in-flight",
      "phase": "engine_fire_in_flight",
      "criticality": "emergency",
      "title": "Engine Fire in Flight",
      "items": [
        {
          "id": "engine-fire-in-flight-1",
          "type": "action",
          "text": "Mixture",
          "response": "IDLE CUT-OFF",
          "tickable": true,
          "memory_item": true
        },
        {
          "id": "engine-fire-in-flight-2",
          "type": "action",
          "text": "Fuel selector",
          "response": "OFF",
          "tickable": true,
          "memory_item": true
        },
        {
          "id": "engine-fire-in-flight-3",
          "type": "action",
          "text": "Throttle",
          "response": "FULL OPEN (exhaust residual fuel through induction)",
          "tickable": true,
          "memory_item": true
        },
        {
          "id": "engine-fire-in-flight-4",
          "type": "action",
          "text": "Master switches (battery and alternator)",
          "response": "OFF",
          "tickable": true,
          "memory_item": true
        },
        {
          "id": "engine-fire-in-flight-5",
          "type": "action",
          "text": "Airspeed — increase to maximum glide within structural limits to help extinguish fire through airflow",
          "response": "AIRSPEED INCREASED PER POH",
          "tickable": true,
          "memory_item": true
        },
        {
          "id": "engine-fire-in-flight-6",
          "type": "action",
          "text": "Emergency landing — initiate forced landing immediately; do not attempt restart",
          "response": "FORCED LANDING INITIATED",
          "tickable": true
        },
        {
          "id": "engine-fire-in-flight-7",
          "type": "action",
          "text": "Declare emergency — squawk 7700; transmit position and intentions on 121.5 if able",
          "response": "DECLARED IF ABLE",
          "tickable": true
        },
        {
          "id": "engine-fire-in-flight-8",
          "type": "action",
          "text": "Canopy — do not open in flight (fire and smoke inhalation hazard); delay until landing and evacuation",
          "response": "REMAIN CLOSED UNTIL ON GROUND",
          "tickable": true
        }
      ]
    },
    {
      "id": "engine-fire-ground",
      "phase": "engine_fire_ground",
      "criticality": "emergency",
      "title": "Engine Fire on the Ground",
      "items": [
        {
          "id": "engine-fire-ground-1",
          "type": "action",
          "text": "Mixture",
          "response": "IDLE CUT-OFF",
          "tickable": true,
          "memory_item": true
        },
        {
          "id": "engine-fire-ground-2",
          "type": "action",
          "text": "Fuel selector",
          "response": "OFF",
          "tickable": true,
          "memory_item": true
        },
        {
          "id": "engine-fire-ground-3",
          "type": "action",
          "text": "Throttle — advance fully open to draw fire back into engine compartment",
          "response": "FULL OPEN",
          "tickable": true,
          "memory_item": true
        },
        {
          "id": "engine-fire-ground-4",
          "type": "action",
          "text": "Ignition switch",
          "response": "OFF",
          "tickable": true,
          "memory_item": true
        },
        {
          "id": "engine-fire-ground-5",
          "type": "action",
          "text": "Master switches",
          "response": "OFF",
          "tickable": true,
          "memory_item": true
        },
        {
          "id": "engine-fire-ground-6",
          "type": "action",
          "text": "Canopy — unlatch and open; evacuate aircraft immediately",
          "response": "OPEN; EVACUATE UPWIND",
          "tickable": true,
          "memory_item": true
        },
        {
          "id": "engine-fire-ground-7",
          "type": "action",
          "text": "Fire extinguisher — direct at base of fire if safe to do so; do not linger near aircraft",
          "response": "EXTINGUISHER APPLIED IF SAFE",
          "tickable": true
        },
        {
          "id": "engine-fire-ground-8",
          "type": "action",
          "text": "Emergency services — call 911 or airport authority; do not attempt to fly the aircraft",
          "response": "CALLED",
          "tickable": true
        }
      ]
    },
    {
      "id": "electrical-fire",
      "phase": "electrical_fire",
      "criticality": "emergency",
      "title": "Electrical Fire / Smoke in Cockpit",
      "items": [
        {
          "id": "electrical-fire-1",
          "type": "action",
          "text": "Master switches (battery and alternator)",
          "response": "OFF",
          "tickable": true,
          "memory_item": true
        },
        {
          "id": "electrical-fire-2",
          "type": "action",
          "text": "All electrical switches — avionics, lights, pitot heat, fans",
          "response": "OFF",
          "tickable": true,
          "memory_item": true
        },
        {
          "id": "electrical-fire-3",
          "type": "action",
          "text": "Vents / fresh air — increase airflow to dilute smoke; do not open canopy in flight unless specifically directed by POH",
          "response": "VENTS OPEN",
          "tickable": true,
          "memory_item": true
        },
        {
          "id": "electrical-fire-4",
          "type": "action",
          "text": "Land as soon as possible — declare emergency; smoke and fumes impair pilot performance rapidly",
          "response": "NEAREST SUITABLE FIELD",
          "tickable": true,
          "memory_item": true
        },
        {
          "id": "electrical-fire-5",
          "type": "action",
          "text": "Circuit breakers — if source is identifiable, pull relevant breaker; do not reset a tripped breaker if fire is suspected",
          "response": "OFFENDING CIRCUIT ISOLATED IF KNOWN",
          "tickable": true
        },
        {
          "id": "electrical-fire-6",
          "type": "action",
          "text": "Battery master — may be restored selectively if radio contact is needed for approach; re-evaluate whether smoke resumes",
          "response": "RESTORE ONLY IF NECESSARY AND SAFE",
          "tickable": true
        },
        {
          "id": "electrical-fire-7",
          "type": "action",
          "text": "Squawk 7700 — declare emergency on 121.5 if other comms are lost",
          "response": "DECLARED",
          "tickable": true
        }
      ]
    },
    {
      "id": "oil-pressure-loss",
      "phase": "oil_system_malfunction",
      "criticality": "emergency",
      "title": "Loss of Oil Pressure",
      "items": [
        {
          "id": "oil-pressure-loss-1",
          "type": "action",
          "text": "Oil pressure — confirm indication is abnormally low or zero; cross-check oil temperature for confirming trend",
          "response": "CONFIRMED LOW",
          "tickable": true,
          "memory_item": true
        },
        {
          "id": "oil-pressure-loss-2",
          "type": "action",
          "text": "Throttle — reduce to minimum power needed to maintain controlled flight; minimize engine load",
          "response": "REDUCE POWER",
          "tickable": true,
          "memory_item": true
        },
        {
          "id": "oil-pressure-loss-3",
          "type": "action",
          "text": "Land immediately — engine failure is imminent if pressure is at or near zero; select best available field now",
          "response": "LAND AS SOON AS POSSIBLE",
          "tickable": true,
          "memory_item": true
        },
        {
          "id": "oil-pressure-loss-4",
          "type": "action",
          "text": "Mixture — enrich if not already; do not lean a potentially overheating engine",
          "response": "RICH",
          "tickable": true
        },
        {
          "id": "oil-pressure-loss-5",
          "type": "action",
          "text": "Declare emergency — squawk 7700; advise ATC of situation and intention",
          "response": "DECLARED",
          "tickable": true
        },
        {
          "id": "oil-pressure-loss-6",
          "type": "action",
          "text": "Engine instruments — monitor CHT and oil temperature for continued degradation; be prepared for sudden seizure",
          "response": "MONITORING",
          "tickable": true
        },
        {
          "id": "oil-pressure-loss-7",
          "type": "action",
          "text": "If oil temperature also rising rapidly — treat as imminent engine failure; do not delay forced landing",
          "response": "FORCED LANDING INITIATED",
          "tickable": true
        }
      ]
    },
    {
      "id": "carburetor-ice",
      "phase": "carburetor_icing",
      "criticality": "emergency",
      "title": "Carburetor Ice — Not Applicable",
      "items": [
        {
          "id": "carburetor-ice-1",
          "type": "note",
          "text": "The Lycoming IO-360 installed in the DA40 180 is fuel-injected. It has no carburetor and no carburetor heat system. Carburetor icing cannot occur. If unexplained power loss occurs, refer to the Engine Failure in Flight checklist.",
          "tickable": false
        }
      ]
    },
    {
      "id": "forced-landing",
      "phase": "forced_landing",
      "criticality": "emergency",
      "title": "Forced Landing (Power-Off)",
      "items": [
        {
          "id": "forced-landing-1",
          "type": "action",
          "text": "Best glide speed — establish and maintain throughout; the DA40's composite airframe glides efficiently",
          "response": "BEST GLIDE SPEED PER POH",
          "tickable": true,
          "memory_item": true
        },
        {
          "id": "forced-landing-2",
          "type": "action",
          "text": "Landing site — select the best available field considering length, surface, slope, obstacles, and wind direction",
          "response": "FIELD SELECTED",
          "tickable": true,
          "memory_item": true
        },
        {
          "id": "forced-landing-3",
          "type": "action",
          "text": "Squawk 7700 — declare emergency on current frequency or 121.5",
          "response": "DECLARED",
          "tickable": true,
          "memory_item": true
        },
        {
          "id": "forced-landing-4",
          "type": "action",
          "text": "Fuel selector",
          "response": "OFF",
          "tickable": true
        },
        {
          "id": "forced-landing-5",
          "type": "action",
          "text": "Mixture",
          "response": "IDLE CUT-OFF",
          "tickable": true
        },
        {
          "id": "forced-landing-6",
          "type": "action",
          "text": "Propeller — if engine windmilling, consider setting prop full coarse (low RPM) per POH to reduce drag if time permits",
          "response": "PER POH GUIDANCE",
          "tickable": true
        },
        {
          "id": "forced-landing-7",
          "type": "action",
          "text": "Ignition switch — off when landing is assured",
          "response": "OFF",
          "tickable": true
        },
        {
          "id": "forced-landing-8",
          "type": "action",
          "text": "Master switches — off before impact to reduce electrical fire risk; leave on until confident landing is achievable",
          "response": "OFF BEFORE TOUCHDOWN",
          "tickable": true
        },
        {
          "id": "forced-landing-9",
          "type": "action",
          "text": "Canopy latch — UNLATCH prior to touchdown to ensure exit is available after impact; do not open in flight",
          "response": "UNLATCHED (NOT OPENED)",
          "tickable": true,
          "memory_item": true
        },
        {
          "id": "forced-landing-10",
          "type": "action",
          "text": "Seat belts and shoulder harnesses — as tight as possible on all occupants",
          "response": "TIGHTENED",
          "tickable": true
        },
        {
          "id": "forced-landing-11",
          "type": "action",
          "text": "Flaps — extend per POH recommendation for terrain type; full flaps for short fields, partial for rough terrain",
          "response": "PER POH / TERRAIN",
          "tickable": true
        },
        {
          "id": "forced-landing-12",
          "type": "action",
          "text": "Touchdown — aim for far edge of field; fly to the ground; do not stall high; T-tail — maintain positive control through flare; be alert for pitch sensitivity near stall",
          "response": "CONTROLLED TOUCHDOWN",
          "tickable": true
        },
        {
          "id": "forced-landing-13",
          "type": "action",
          "text": "After stopping — canopy open; evacuate aircraft promptly and move upwind away from fuel",
          "response": "EVACUATED UPWIND",
          "tickable": true
        }
      ]
    }
  ]
}