{
  "open_checklist_version": "1.0",
  "id": "beechcraft-baron-58-emergency",
  "title": "Beechcraft Baron 58 — Emergency Procedures",
  "description": "Emergency procedures for the Beechcraft Baron 58 with twin Continental IO-550 fuel-injected engines, constant-speed propellers, and retractable tricycle gear. Memory items are marked. The Baron has counter-rotating propellers which reduce P-factor at cruise power, but VMC considerations and single-engine climb performance are critical — review per POH before each flight. All airspeeds, power settings, and numerical limits must come from the specific aircraft POH. The IO-550 is fuel-injected; carburetor icing is not applicable. This file does not substitute for recurrent emergency training, simulator practice, or a Baron type-specific checkout with a qualified instructor.",
  "aircraft": {
    "make": "Beechcraft",
    "model": "Baron",
    "variant": "58",
    "icao_type": "BE58",
    "category": "standard_normal",
    "engine": [
      {
        "make": "Continental",
        "model": "IO-550",
        "type": "piston_4stroke",
        "count": 2
      }
    ],
    "propeller": "constant_speed",
    "gear": "retractable"
  },
  "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 type."
    },
    "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, fuel quantities, or other numerical limitations — all must come from the specific aircraft POH.",
        "location": "whole file"
      },
      {
        "severity": "content_gap",
        "description": "Equipment variations exist across Baron 58 airframes. Verify every item against the specific aircraft and its POH before use.",
        "location": "whole file"
      }
    ]
  },
  "rights": {
    "status": "original_expression",
    "corpus_license": "CC-BY-4.0",
    "redistribution": "attribution_required",
    "notes": "Manufacturer POH remains under copyright. This file does not reproduce its wording or selection of items."
  },
  "sections": [
    {
      "id": "engine-failure-before-rotation",
      "phase": "engine_failure_before_rotation",
      "title": "Engine Failure on Takeoff — Before or At Liftoff",
      "criticality": "emergency",
      "items": [
        {
          "type": "action",
          "id": "efbr-throttles",
          "text": "Throttles — both",
          "response": "CLOSE IMMEDIATELY",
          "tickable": true,
          "memory_item": true
        },
        {
          "type": "action",
          "id": "efbr-brakes",
          "text": "Brakes — apply firmly to stop within remaining runway",
          "response": "BRAKES APPLIED",
          "tickable": true,
          "memory_item": true
        },
        {
          "type": "action",
          "id": "efbr-mixtures",
          "text": "Mixtures — both",
          "response": "IDLE CUTOFF",
          "tickable": true,
          "memory_item": true
        },
        {
          "type": "action",
          "id": "efbr-ignition",
          "text": "Ignition switches — both",
          "response": "OFF",
          "tickable": true,
          "memory_item": true
        },
        {
          "type": "action",
          "id": "efbr-fuel-sel",
          "text": "Fuel selectors — both",
          "response": "OFF",
          "tickable": true,
          "memory_item": true
        },
        {
          "type": "action",
          "id": "efbr-master",
          "text": "Master switch",
          "response": "OFF",
          "tickable": true,
          "memory_item": true
        },
        {
          "type": "caution",
          "text": "In a light twin, a turnback to the runway after an engine failure at low speed and altitude is rarely survivable. If airborne with insufficient runway remaining, land straight ahead or within a narrow arc on the best available surface.",
          "tickable": false
        },
        {
          "type": "action",
          "text": "Occupants — advise to brace for impact if a ground roll stop is not possible",
          "response": "BRACE",
          "tickable": true
        }
      ]
    },
    {
      "id": "engine-failure-multi-engine",
      "phase": "engine_failure_in_flight",
      "title": "Engine Failure in Flight — Identify / Verify / Feather / Secure",
      "criticality": "emergency",
      "items": [
        {
          "type": "caution",
          "text": "The identify-verify-feather-secure sequence is fundamental to twin-engine operations. Dead foot = dead engine: the failed engine is on the same side as the foot that is not pressing the rudder. Confirm before feathering.",
          "tickable": false
        },
        {
          "type": "action",
          "id": "ivfs-airspeed",
          "text": "Airspeed — immediately establish and maintain at or above Vmc; target Vyse (blue line) to optimise climb or minimise sink",
          "response": "AT OR ABOVE VMC; TARGETING VYSE PER POH",
          "tickable": true,
          "memory_item": true
        },
        {
          "type": "action",
          "id": "ivfs-identify",
          "text": "Identify failed engine — note which foot is applying rudder to maintain directional control; failed engine is on the same side as the idle rudder foot",
          "response": "FAILED ENGINE IDENTIFIED",
          "tickable": true,
          "memory_item": true
        },
        {
          "type": "action",
          "id": "ivfs-verify",
          "text": "Verify failed engine — retard the suspect throttle slightly; confirm no change in power or yaw tendency",
          "response": "FAILURE CONFIRMED ON IDENTIFIED ENGINE",
          "tickable": true,
          "memory_item": true
        },
        {
          "type": "action",
          "id": "ivfs-feather",
          "text": "Failed engine propeller — feather by pulling the failed engine's propeller control to the FEATHER detent",
          "response": "FEATHERED; WINDMILLING STOPS",
          "tickable": true,
          "memory_item": true
        },
        {
          "type": "action",
          "id": "ivfs-bank",
          "text": "Bank toward operating engine — establish a shallow bank per POH toward the good engine to assist rudder in maintaining directional control",
          "response": "SLIGHT BANK TOWARD GOOD ENGINE",
          "tickable": true,
          "memory_item": true
        },
        {
          "type": "action",
          "text": "Failed engine fuel selector",
          "response": "OFF",
          "tickable": true
        },
        {
          "type": "action",
          "text": "Failed engine mixture",
          "response": "IDLE CUTOFF",
          "tickable": true
        },
        {
          "type": "action",
          "text": "Failed engine ignition switch",
          "response": "OFF",
          "tickable": true
        },
        {
          "type": "action",
          "text": "Failed engine boost pump",
          "response": "OFF",
          "tickable": true
        },
        {
          "type": "action",
          "text": "Operating engine — verify full power; fuel selector, mixture, boost pump, and magnetos on",
          "response": "FULL POWER; ALL SYSTEMS CONFIRMED ON",
          "tickable": true
        },
        {
          "type": "action",
          "text": "Drag — landing gear up, flaps up, failed engine cowl flap closed",
          "response": "DRAG MINIMISED",
          "tickable": true
        },
        {
          "type": "action",
          "text": "Altitude and terrain — assess single-engine climb or descent capability versus terrain and obstacle clearance",
          "response": "TERRAIN CLEARANCE CONFIRMED OR LANDING AREA SELECTED",
          "tickable": true
        },
        {
          "type": "action",
          "text": "Squawk and declare — transponder 7700; advise ATC of engine failure and intentions",
          "response": "7700 SET; ATC NOTIFIED",
          "tickable": true
        }
      ]
    },
    {
      "id": "engine-failure-after-takeoff",
      "phase": "engine_failure_after_takeoff",
      "title": "Engine Failure After Takeoff — Airborne",
      "criticality": "emergency",
      "items": [
        {
          "type": "action",
          "id": "efat-airspeed",
          "text": "Airspeed — pitch immediately to maintain Vmc or above; Vyse (blue line) is the target climb speed",
          "response": "AT OR ABOVE VMC; VYSE PER POH",
          "tickable": true,
          "memory_item": true
        },
        {
          "type": "action",
          "id": "efat-identify",
          "text": "Identify failed engine — dead foot / dead engine",
          "response": "IDENTIFIED",
          "tickable": true,
          "memory_item": true
        },
        {
          "type": "action",
          "id": "efat-sequence",
          "text": "Failed engine — complete the identify / verify / feather / secure sequence",
          "response": "SEQUENCE COMPLETE",
          "tickable": true,
          "memory_item": true
        },
        {
          "type": "action",
          "text": "Landing gear — retract if not already up",
          "response": "GEAR UP",
          "tickable": true
        },
        {
          "type": "action",
          "text": "Flaps — retract if extended",
          "response": "FLAPS UP",
          "tickable": true
        },
        {
          "type": "action",
          "text": "Single-engine climb — if terrain and performance permit, continue to a safe altitude for return and landing; otherwise land ahead",
          "response": "CLIMBING OR LANDING AREA SELECTED",
          "tickable": true
        },
        {
          "type": "action",
          "text": "ATC — advise of emergency; request priority handling",
          "response": "NOTIFIED",
          "tickable": true
        }
      ]
    },
    {
      "id": "engine-fire-in-flight",
      "phase": "engine_fire_in_flight",
      "title": "Engine Fire in Flight",
      "criticality": "emergency",
      "items": [
        {
          "type": "action",
          "id": "efif-throttle",
          "text": "Affected engine throttle",
          "response": "CLOSE",
          "tickable": true,
          "memory_item": true
        },
        {
          "type": "action",
          "id": "efif-mixture",
          "text": "Affected engine mixture",
          "response": "IDLE CUTOFF",
          "tickable": true,
          "memory_item": true
        },
        {
          "type": "action",
          "id": "efif-fuel",
          "text": "Affected engine fuel selector",
          "response": "OFF",
          "tickable": true,
          "memory_item": true
        },
        {
          "type": "action",
          "id": "efif-prop",
          "text": "Affected engine propeller",
          "response": "FEATHER",
          "tickable": true,
          "memory_item": true
        },
        {
          "type": "action",
          "id": "efif-ignition",
          "text": "Affected engine ignition switch",
          "response": "OFF",
          "tickable": true,
          "memory_item": true
        },
        {
          "type": "action",
          "id": "efif-boost",
          "text": "Affected engine boost pump",
          "response": "OFF",
          "tickable": true,
          "memory_item": true
        },
        {
          "type": "action",
          "text": "Airspeed — increase if fire persists; airflow may help extinguish or carry flame away from airframe",
          "response": "AIRSPEED INCREASED PER POH IF FIRE CONTINUES",
          "tickable": true
        },
        {
          "type": "action",
          "text": "If fire extinguishes — secure engine; proceed to nearest suitable airport; advise ATC",
          "response": "ENGINE SECURED; ATC NOTIFIED",
          "tickable": true
        },
        {
          "type": "action",
          "text": "If fire does not extinguish — prepare for emergency landing; squawk 7700; brief occupants to brace",
          "response": "FORCED LANDING INITIATED",
          "tickable": true
        }
      ]
    },
    {
      "id": "engine-fire-on-ground",
      "phase": "engine_fire_ground",
      "title": "Engine Fire on Ground",
      "criticality": "emergency",
      "items": [
        {
          "type": "action",
          "id": "efog-throttle",
          "text": "Throttle — affected engine",
          "response": "CLOSE",
          "tickable": true,
          "memory_item": true
        },
        {
          "type": "action",
          "id": "efog-mixture",
          "text": "Mixture — affected engine",
          "response": "IDLE CUTOFF",
          "tickable": true,
          "memory_item": true
        },
        {
          "type": "action",
          "id": "efog-fuel",
          "text": "Fuel selector — affected engine",
          "response": "OFF",
          "tickable": true,
          "memory_item": true
        },
        {
          "type": "action",
          "id": "efog-ignition",
          "text": "Ignition switch — affected engine",
          "response": "OFF",
          "tickable": true,
          "memory_item": true
        },
        {
          "type": "action",
          "id": "efog-master",
          "text": "Master switch",
          "response": "OFF",
          "tickable": true,
          "memory_item": true
        },
        {
          "type": "action",
          "text": "Fuel selectors — all remaining",
          "response": "OFF",
          "tickable": true
        },
        {
          "type": "action",
          "text": "Occupants — evacuate via pilot door and cabin entry door; move upwind of aircraft",
          "response": "ALL OCCUPANTS EVACUATED AND CLEAR",
          "tickable": true
        },
        {
          "type": "action",
          "text": "Fire extinguisher — if available and fire is small, discharge through cowling openings from upwind",
          "response": "EXTINGUISHER USED OR NOT AVAILABLE",
          "tickable": true
        },
        {
          "type": "action",
          "text": "Emergency services — call for assistance; do not re-enter the aircraft",
          "response": "SERVICES NOTIFIED",
          "tickable": true
        }
      ]
    },
    {
      "id": "electrical-fire",
      "phase": "electrical_fire",
      "title": "Electrical Fire / Smoke in Cockpit",
      "criticality": "emergency",
      "items": [
        {
          "type": "action",
          "id": "elec-master",
          "text": "Master switch",
          "response": "OFF",
          "tickable": true,
          "memory_item": true
        },
        {
          "type": "action",
          "id": "elec-avionics",
          "text": "Avionics master switch",
          "response": "OFF",
          "tickable": true,
          "memory_item": true
        },
        {
          "type": "action",
          "text": "All electrical switches — switch off individually to isolate the source",
          "response": "SWITCHED OFF ONE BY ONE",
          "tickable": true
        },
        {
          "type": "action",
          "text": "Vents and fresh air — open pilot air vents to clear smoke from cockpit",
          "response": "VENTS OPEN; SMOKE CLEARING",
          "tickable": true
        },
        {
          "type": "action",
          "text": "If fire is out and source is isolated — leave offending circuit off; restore minimum essential electrical power",
          "response": "MINIMUM ESSENTIAL POWER RESTORED",
          "tickable": true
        },
        {
          "type": "action",
          "text": "Land as soon as practicable — declare emergency; advise ATC",
          "response": "DIVERTING; ATC NOTIFIED",
          "tickable": true
        }
      ]
    },
    {
      "id": "loss-of-oil-pressure",
      "phase": "oil_system_malfunction",
      "title": "Loss of Oil Pressure",
      "criticality": "emergency",
      "items": [
        {
          "type": "action",
          "id": "oil-verify",
          "text": "Oil pressure gauge — verify low reading and cross-check oil temperature for a corroborating rise",
          "response": "LOW PRESSURE CONFIRMED; OIL TEMP TREND NOTED",
          "tickable": true,
          "memory_item": true
        },
        {
          "type": "action",
          "id": "oil-power",
          "text": "Affected engine power — reduce to minimum required to maintain level flight or a controlled descent",
          "response": "POWER REDUCED",
          "tickable": true,
          "memory_item": true
        },
        {
          "type": "action",
          "id": "oil-land",
          "text": "Land as soon as possible — a confirmed zero oil-pressure reading means engine failure is imminent; do not delay",
          "response": "DIVERTING TO NEAREST SUITABLE AIRPORT",
          "tickable": true,
          "memory_item": true
        },
        {
          "type": "action",
          "text": "If engine seizes or fails — execute identify / verify / feather / secure sequence",
          "response": "MULTI-ENGINE FAILURE CHECKLIST INITIATED",
          "tickable": true
        },
        {
          "type": "action",
          "text": "ATC — advise of emergency and intentions; request priority handling",
          "response": "ATC NOTIFIED",
          "tickable": true
        }
      ]
    },
    {
      "id": "forced-landing",
      "phase": "forced_landing",
      "title": "Forced Landing — Power-Off",
      "criticality": "emergency",
      "items": [
        {
          "type": "action",
          "id": "fl-airspeed",
          "text": "Airspeed — establish best glide speed per POH to maximise glide range",
          "response": "BEST GLIDE PER POH",
          "tickable": true,
          "memory_item": true
        },
        {
          "type": "action",
          "id": "fl-field",
          "text": "Landing area — choose the best available field, road, or surface within gliding distance; commit early",
          "response": "FIELD SELECTED",
          "tickable": true,
          "memory_item": true
        },
        {
          "type": "action",
          "id": "fl-mayday",
          "text": "Mayday — squawk 7700; transmit position and situation on 121.5 MHz or last assigned frequency",
          "response": "MAYDAY BROADCAST; 7700 SET",
          "tickable": true,
          "memory_item": true
        },
        {
          "type": "action",
          "text": "Restart attempt — if altitude permits, attempt restart per engine-failure-in-flight checklist",
          "response": "ATTEMPTED OR NOT PRACTICAL",
          "tickable": true
        },
        {
          "type": "action",
          "text": "Fuel selectors — both",
          "response": "OFF ON FINAL APPROACH",
          "tickable": true
        },
        {
          "type": "action",
          "text": "Mixtures — both",
          "response": "IDLE CUTOFF ON FINAL APPROACH",
          "tickable": true
        },
        {
          "type": "action",
          "text": "Ignition switches — both",
          "response": "OFF ON FINAL APPROACH",
          "tickable": true
        },
        {
          "type": "action",
          "text": "Master switch — leave on until flaps are set and gear decision is made, then off",
          "response": "OFF BEFORE TOUCHDOWN",
          "tickable": true
        },
        {
          "type": "action",
          "text": "Landing gear — extend if a prepared surface is assured; consider gear-up for soft field or obstacle clearance",
          "response": "DOWN (HARD SURFACE) OR UP (SOFT OR OBSTACLE) PER CONDITIONS",
          "tickable": true
        },
        {
          "type": "action",
          "text": "Seat belts and shoulder harnesses — all occupants",
          "response": "TIGHTENED; OCCUPANTS BRACED",
          "tickable": true
        },
        {
          "type": "action",
          "text": "Doors — crack open to prevent jamming on impact",
          "response": "UNLATCHED BUT HELD CLOSED",
          "tickable": true
        }
      ]
    },
    {
      "id": "gear-unsafe",
      "phase": "landing_gear_malfunction",
      "title": "Gear Unsafe / Abnormal Gear Indication",
      "criticality": "emergency",
      "items": [
        {
          "type": "action",
          "text": "Airspeed — reduce to gear extension speed range; avoid overstressing gear doors",
          "response": "BELOW GEAR EXTENSION SPEED PER POH",
          "tickable": true
        },
        {
          "type": "action",
          "text": "Landing gear handle — cycle up then down; allow full travel and listen for gear actuation",
          "response": "CYCLED; RESULTS NOTED",
          "tickable": true
        },
        {
          "type": "action",
          "text": "Gear circuit breaker — check that gear system breaker is not tripped; reset once if tripped",
          "response": "BREAKER CHECKED; RESET IF TRIPPED",
          "tickable": true
        },
        {
          "type": "action",
          "text": "If normal extension fails — proceed to emergency gear extension checklist",
          "response": "EMERGENCY EXTENSION INITIATED",
          "tickable": true
        },
        {
          "type": "action",
          "text": "ATC — advise of gear problem; request low pass for tower gear verification if available",
          "response": "ATC NOTIFIED; TOWER VERIFICATION REQUESTED",
          "tickable": true
        }
      ]
    },
    {
      "id": "emergency-gear-extension",
      "phase": "landing_gear_malfunction",
      "title": "Emergency Gear Extension",
      "criticality": "emergency",
      "items": [
        {
          "type": "action",
          "id": "ege-airspeed",
          "text": "Airspeed — reduce to gear extension speed or below per POH before activating emergency system",
          "response": "BELOW GEAR EXTENSION SPEED PER POH",
          "tickable": true,
          "memory_item": true
        },
        {
          "type": "action",
          "id": "ege-handle-down",
          "text": "Gear handle",
          "response": "DOWN",
          "tickable": true,
          "memory_item": true
        },
        {
          "type": "action",
          "id": "ege-emergency-handle",
          "text": "Emergency gear extension handle or CO2 lever — locate and activate per POH procedure",
          "response": "ACTIVATED PER POH",
          "tickable": true,
          "memory_item": true
        },
        {
          "type": "action",
          "text": "Gear-down indication — verify three green lights illuminate after extension",
          "response": "THREE GREEN CONFIRMED",
          "tickable": true
        },
        {
          "type": "action",
          "text": "If only partial indication — assume unsafe; advise ATC; consider belly landing or gear-up landing",
          "response": "PARTIAL INDICATION; ATC NOTIFIED",
          "tickable": true
        },
        {
          "type": "note",
          "text": "After an emergency gear extension, retraction is generally not possible. Plan for landing at the nearest suitable airport.",
          "tickable": false
        }
      ]
    },
    {
      "id": "single-engine-approach",
      "phase": "engine_out_landing",
      "title": "Single-Engine Approach and Landing",
      "criticality": "emergency",
      "items": [
        {
          "type": "action",
          "text": "Failed engine — confirm feathered and secured before initiating approach",
          "response": "FEATHERED AND SECURED",
          "tickable": true
        },
        {
          "type": "action",
          "text": "Operating engine — full power available; mixture rich, fuel selector on best tank, boost pump on, magnetos on BOTH",
          "response": "OPERATING ENGINE CONFIRMED FULLY SERVICEABLE",
          "tickable": true
        },
        {
          "type": "action",
          "id": "sea-airspeed",
          "text": "Airspeed — fly approach at single-engine approach speed per POH; higher than normal approach speed accounts for reduced go-around margin",
          "response": "SINGLE-ENGINE APPROACH SPEED PER POH",
          "tickable": true,
          "memory_item": true
        },
        {
          "type": "action",
          "id": "sea-flaps",
          "text": "Flap extension — use minimum flap consistent with field length; excess flap dramatically degrades single-engine go-around performance",
          "response": "MINIMUM NECESSARY FLAP PER CONDITIONS AND POH",
          "tickable": true,
          "memory_item": true
        },
        {
          "type": "action",
          "text": "Landing gear — extend when landing is assured; delay as long as practical to preserve single-engine go-around option",
          "response": "GEAR DOWN; THREE GREEN CONFIRMED",
          "tickable": true
        },
        {
          "type": "action",
          "text": "Stabilise early — single-engine approaches require a long, stable final; do not attempt a steep or rushed approach",
          "response": "STABILISED ON FINAL",
          "tickable": true
        },
        {
          "type": "action",
          "text": "ATC — advise of single-engine approach; request emergency services standing by",
          "response": "ATC NOTIFIED; SERVICES REQUESTED",
          "tickable": true
        },
        {
          "type": "action",
          "text": "Plan to land long if uncertain — it is better to roll off the far end than to attempt a go-around from too low or too slow",
          "response": "TOUCHDOWN POINT SELECTED",
          "tickable": true
        }
      ]
    },
    {
      "id": "engine-out-go-around",
      "phase": "go_around",
      "title": "Engine-Out Go-Around",
      "criticality": "emergency",
      "items": [
        {
          "type": "caution",
          "text": "An engine-out go-around is extremely hazardous at low altitude. Commit to landing whenever possible. Initiate only if a safe landing cannot be made and climb performance is assured.",
          "tickable": false
        },
        {
          "type": "action",
          "id": "eoga-power",
          "text": "Operating engine — full power immediately; smooth application to avoid loss of directional control",
          "response": "FULL POWER; DIRECTIONAL CONTROL MAINTAINED",
          "tickable": true,
          "memory_item": true
        },
        {
          "type": "action",
          "id": "eoga-pitch",
          "text": "Pitch — immediately establish climb attitude; maintain Vyse (blue line) per POH; remain above Vmc",
          "response": "VYSE ATTITUDE; AIRSPEED AT OR ABOVE VMC",
          "tickable": true,
          "memory_item": true
        },
        {
          "type": "action",
          "id": "eoga-rudder",
          "text": "Rudder — full rudder toward operating engine; use all available rudder to counter yaw",
          "response": "RUDDER APPLIED TOWARD GOOD ENGINE",
          "tickable": true,
          "memory_item": true
        },
        {
          "type": "action",
          "id": "eoga-flaps",
          "text": "Flaps — retract to takeoff position immediately on first increment",
          "response": "FLAPS TO TAKEOFF SETTING",
          "tickable": true,
          "memory_item": true
        },
        {
          "type": "action",
          "text": "Landing gear — retract after positive climb is established",
          "response": "GEAR UP",
          "tickable": true
        },
        {
          "type": "action",
          "text": "Flaps — retract fully after obstacle clearance and positive climb confirmed",
          "response": "FLAPS UP",
          "tickable": true
        },
        {
          "type": "action",
          "text": "ATC — advise of engine-out go-around; declare emergency if not already declared",
          "response": "ATC NOTIFIED; EMERGENCY DECLARED",
          "tickable": true
        }
      ]
    }
  ]
}