{
  "open_checklist_version": "1.0",
  "id": "yakovlev-yak-52-yak52-yak52shortch",
  "title": "Yakovlev Yak 52 — yak52_yak52shortch",
  "aircraft": {
    "make": "Yakovlev",
    "model": "Yak 52",
    "category": "standard_normal"
  },
  "provenance": {
    "source": {
      "kind": "third_party_checklist",
      "title": "Yakovlev/Yak 52/yak52_yak52shortch.txt"
    },
    "transcription": {
      "method": "format_conversion",
      "date": "2026-08-14",
      "converted_from": "doc"
    },
    "contributors": [
      {
        "name": "Open Checklists project",
        "role": [
          "transcriber"
        ]
      }
    ],
    "revision": {
      "file_revision": "0.1.0",
      "updated": "2026-08-14"
    }
  },
  "verification": {
    "source_fidelity": "unreviewed",
    "operational_review": "none",
    "completeness": "full",
    "known_issues": [],
    "reviews": [
      {
        "type": "source_comparison",
        "reviewer": "ai-dual-pass-review",
        "date": "2026-08-14",
        "notes": "Automated AI review: two independent transcription passes + numeric/item-count disagreement resolution. Not human-verified; baseline for community correction."
      }
    ]
  },
  "rights": {
    "status": "licensed",
    "upstream_holder": "freechecklists.net",
    "upstream_license": "content-reuse permission granted by the site author for this replacement project",
    "notes": "Transcribed from the freechecklists.net archive under the author's reuse grant. Individual checklist wording may be substantially the source's; per-file contributor authorship is unknown."
  },
  "units": {
    "airspeed": "km/h"
  },
  "sections": [
    {
      "phase": "preflight_inspection",
      "title": "EXTERNAL",
      "items": [
        {
          "type": "challenge",
          "text": "Fuel quantity",
          "tickable": true,
          "source_confidence": 0.98
        },
        {
          "type": "challenge",
          "text": "Oil Quantity, min 8 lts",
          "tickable": true,
          "source_confidence": 0.95
        },
        {
          "type": "challenge",
          "text": "Prop alignment marks \"0\"",
          "tickable": true,
          "source_confidence": 0.96
        },
        {
          "type": "challenge",
          "text": "Prop Area clear",
          "tickable": true,
          "source_confidence": 0.98
        },
        {
          "type": "challenge",
          "text": "Cowl Shutters",
          "tickable": true,
          "source_confidence": 0.98
        },
        {
          "type": "challenge",
          "text": "Fuselage FOD",
          "tickable": true,
          "source_confidence": 0.98
        },
        {
          "type": "challenge",
          "text": "Oil Leaks",
          "tickable": true,
          "source_confidence": 0.98
        },
        {
          "type": "challenge",
          "text": "Gear Struts",
          "tickable": true,
          "source_confidence": 0.98
        },
        {
          "type": "challenge",
          "text": "Cowl Latches",
          "tickable": true,
          "source_confidence": 0.98
        },
        {
          "type": "action",
          "text": "Pitot cover",
          "response": "OFF",
          "tickable": true,
          "source_confidence": 0.98
        },
        {
          "type": "challenge",
          "text": "Static Ports",
          "tickable": true,
          "source_confidence": 0.98
        },
        {
          "type": "challenge",
          "text": "Flaps",
          "tickable": true,
          "source_confidence": 0.98
        },
        {
          "type": "challenge",
          "text": "Drain Fuel",
          "tickable": true,
          "source_confidence": 0.98
        },
        {
          "type": "challenge",
          "text": "Control Surfaces",
          "tickable": true,
          "source_confidence": 0.98
        },
        {
          "type": "challenge",
          "text": "Ail Bearings",
          "tickable": true,
          "source_confidence": 0.95
        },
        {
          "type": "challenge",
          "text": "Oil Cooler Cover",
          "tickable": true,
          "source_confidence": 0.98
        },
        {
          "type": "action",
          "text": "Manifold drain tap",
          "response": "shut",
          "tickable": true,
          "source_confidence": 0.96
        },
        {
          "type": "challenge",
          "text": "Configure cockpits",
          "tickable": true,
          "source_confidence": 0.97
        }
      ],
      "criticality": "normal"
    },
    {
      "phase": "preflight_inspection",
      "title": "REAR",
      "items": [
        {
          "type": "challenge",
          "text": "Mag Control UP (1st cabin)",
          "tickable": true,
          "source_confidence": 0.95
        },
        {
          "type": "action",
          "text": "Gear",
          "response": "NEUTRAL",
          "tickable": true,
          "source_confidence": 0.98
        },
        {
          "type": "action",
          "text": "Flaps",
          "response": "NEUTRAL",
          "tickable": true,
          "source_confidence": 0.98
        },
        {
          "type": "action",
          "text": "Intsr. Switches",
          "response": "DOWN",
          "tickable": true,
          "source_confidence": 0.94
        },
        {
          "type": "action",
          "text": "Mags",
          "response": "OFF",
          "tickable": true,
          "source_confidence": 0.98
        },
        {
          "type": "action",
          "text": "Brake Override",
          "response": "OFF",
          "tickable": true,
          "source_confidence": 0.98
        },
        {
          "type": "challenge",
          "text": "Parachute Secured",
          "tickable": true,
          "source_confidence": 0.98
        },
        {
          "type": "challenge",
          "text": "Straps Tied and Secure",
          "tickable": true,
          "source_confidence": 0.98
        }
      ],
      "criticality": "normal"
    },
    {
      "phase": "preflight_inspection",
      "title": "FRONT",
      "items": [
        {
          "type": "action",
          "text": "Mags",
          "response": "OFF (0)",
          "tickable": true,
          "source_confidence": 0.98
        },
        {
          "type": "action",
          "text": "All Switches",
          "response": "OFF",
          "tickable": true,
          "source_confidence": 0.98
        },
        {
          "type": "action",
          "text": "Gear",
          "response": "DOWN & Latched",
          "tickable": true,
          "source_confidence": 0.97
        },
        {
          "type": "action",
          "text": "Brakes",
          "response": "ON",
          "tickable": true,
          "source_confidence": 0.98
        },
        {
          "type": "action",
          "text": "Main air supply",
          "response": "ON",
          "tickable": true,
          "source_confidence": 0.97
        },
        {
          "type": "challenge",
          "text": "Prime as required (cyls)",
          "tickable": true,
          "source_confidence": 0.95
        },
        {
          "type": "challenge",
          "text": "Pull through blades as req.",
          "tickable": true,
          "source_confidence": 0.95
        },
        {
          "type": "warning",
          "text": "Do not touch the propeller if the engine is hot!",
          "tickable": false,
          "source_confidence": 0.97
        },
        {
          "type": "warning",
          "text": "TREAT PROP AS LIVE!",
          "tickable": false,
          "source_confidence": 0.97
        },
        {
          "type": "action",
          "text": "Rear Mags",
          "response": "1+2",
          "tickable": true,
          "source_confidence": 0.96
        },
        {
          "type": "action",
          "text": "Rear canopy",
          "response": "CLOSED",
          "tickable": true,
          "source_confidence": 0.98
        }
      ],
      "criticality": "normal"
    },
    {
      "phase": "engine_start",
      "title": "STARTING",
      "items": [
        {
          "type": "challenge",
          "text": "Air supply Re-check",
          "tickable": true,
          "source_confidence": 0.96
        },
        {
          "type": "action",
          "text": "Air supply",
          "response": "ON",
          "tickable": true,
          "source_confidence": 0.98
        },
        {
          "type": "challenge",
          "text": "Brakes re-check",
          "tickable": true,
          "source_confidence": 0.96
        },
        {
          "type": "action",
          "text": "Brakes",
          "response": "ON",
          "tickable": true,
          "source_confidence": 0.98
        },
        {
          "type": "action",
          "text": "Master switch",
          "response": "ON Generator ON",
          "tickable": true,
          "source_confidence": 0.94
        },
        {
          "type": "action",
          "text": "Ignition",
          "response": "ON Engine Instruments ON",
          "tickable": true,
          "source_confidence": 0.93
        },
        {
          "type": "action",
          "text": "U/C switch",
          "response": "ON",
          "tickable": true,
          "source_confidence": 0.98
        },
        {
          "type": "action",
          "text": "Throttle",
          "response": "SET",
          "tickable": true,
          "source_confidence": 0.98
        },
        {
          "type": "action",
          "text": "Prop",
          "response": "FINE",
          "tickable": true,
          "source_confidence": 0.98
        },
        {
          "type": "action",
          "text": "Fire valve",
          "response": "ON",
          "tickable": true,
          "source_confidence": 0.98
        },
        {
          "type": "action",
          "text": "Enunciator lights",
          "response": "TEST",
          "tickable": true,
          "source_confidence": 0.98
        },
        {
          "type": "action",
          "text": "Carb heat",
          "response": "OFF",
          "tickable": true,
          "source_confidence": 0.98
        },
        {
          "type": "action",
          "text": "Shutters",
          "response": "OPEN",
          "tickable": true,
          "source_confidence": 0.98
        },
        {
          "type": "challenge",
          "text": "Prime LEFT Fuel pressure",
          "tickable": true,
          "source_confidence": 0.9
        },
        {
          "type": "challenge",
          "text": "Prime right as req'd",
          "tickable": true,
          "source_confidence": 0.94
        },
        {
          "type": "challenge",
          "text": "Check behind \"Clear prop\"",
          "tickable": true,
          "source_confidence": 0.95
        },
        {
          "type": "challenge",
          "text": "Press starter",
          "tickable": true,
          "source_confidence": 0.96
        },
        {
          "type": "challenge",
          "text": "Mags to BOTH (1+2)",
          "tickable": true,
          "source_confidence": 0.92
        },
        {
          "type": "challenge",
          "text": "Prime as req'd then lock",
          "tickable": true,
          "source_confidence": 0.94
        },
        {
          "type": "warning",
          "text": "OIL PRESSURE!!!",
          "tickable": false,
          "source_confidence": 0.97
        },
        {
          "type": "action",
          "text": "Warm up at",
          "response": "40-45%",
          "tickable": true,
          "source_confidence": 0.95
        },
        {
          "type": "action",
          "text": "Cooling gills",
          "response": "CLOSED Electrical systems ON",
          "tickable": true,
          "source_confidence": 0.88
        }
      ],
      "criticality": "normal"
    },
    {
      "phase": "after_start",
      "title": "WARM UP",
      "items": [
        {
          "type": "challenge",
          "text": "Monitor temps and Pressures",
          "tickable": true,
          "source_confidence": 0.98
        },
        {
          "type": "challenge",
          "text": "Set cooling controls as required",
          "tickable": true,
          "source_confidence": 0.98
        },
        {
          "type": "challenge",
          "text": "Switch on and test avionics",
          "tickable": true,
          "source_confidence": 0.98
        }
      ],
      "criticality": "normal"
    },
    {
      "phase": "before_takeoff",
      "title": "POWER CHECKS",
      "items": [
        {
          "type": "action",
          "text": "Brakes",
          "response": "ON",
          "tickable": true,
          "source_confidence": 0.98
        },
        {
          "type": "challenge",
          "text": "Clear behind, T's & P's",
          "tickable": true,
          "source_confidence": 0.96
        },
        {
          "type": "challenge",
          "text": "Shutters As required",
          "tickable": true,
          "source_confidence": 0.96
        },
        {
          "type": "action",
          "text": "Power",
          "response": "70%",
          "tickable": true,
          "source_confidence": 0.96
        },
        {
          "type": "challenge",
          "text": "Brakes holding",
          "tickable": true,
          "source_confidence": 0.97
        },
        {
          "type": "action",
          "text": "Exercise Prop",
          "response": "(54%)",
          "tickable": true,
          "source_confidence": 0.94
        },
        {
          "type": "action",
          "text": "Mags",
          "response": "(3% max drop)",
          "tickable": true,
          "source_confidence": 0.92
        },
        {
          "type": "action",
          "text": "T's & P's",
          "response": "CHECK",
          "tickable": true,
          "source_confidence": 0.96
        },
        {
          "type": "challenge",
          "text": "*Ammeter Charging & 28v",
          "tickable": true,
          "source_confidence": 0.92
        },
        {
          "type": "challenge",
          "text": "*Carb heat 1% RPM, + carb temp inc.",
          "tickable": true,
          "source_confidence": 0.91
        },
        {
          "type": "action",
          "text": "Idle",
          "response": "28%",
          "tickable": true,
          "source_confidence": 0.96
        },
        {
          "type": "action",
          "text": "Set",
          "response": "35%",
          "tickable": true,
          "source_confidence": 0.96
        },
        {
          "type": "note",
          "text": "* (can do at 60%)",
          "tickable": false,
          "source_confidence": 0.94
        }
      ],
      "criticality": "normal"
    },
    {
      "phase": "before_takeoff",
      "title": "VITAL ACTIONS — WORK LEFT TO RIGHT",
      "items": [
        {
          "type": "action",
          "text": "Air",
          "response": "ON",
          "tickable": true,
          "source_confidence": 0.98
        },
        {
          "type": "action",
          "text": "Electric's",
          "response": "ON",
          "tickable": true,
          "source_confidence": 0.98
        },
        {
          "type": "action",
          "text": "Trimmer",
          "response": "SET",
          "tickable": true,
          "source_confidence": 0.98
        },
        {
          "type": "action",
          "text": "Flaps",
          "response": "UP",
          "tickable": true,
          "source_confidence": 0.98
        },
        {
          "type": "action",
          "text": "Prop",
          "response": "FINE",
          "tickable": true,
          "source_confidence": 0.98
        },
        {
          "type": "action",
          "text": "Fuel",
          "response": "ON",
          "tickable": true,
          "source_confidence": 0.98
        },
        {
          "type": "action",
          "text": "Lights",
          "response": "PTT",
          "tickable": true,
          "source_confidence": 0.94
        },
        {
          "type": "action",
          "text": "Mags",
          "response": "1+2",
          "tickable": true,
          "source_confidence": 0.98
        },
        {
          "type": "action",
          "text": "Instruments",
          "response": "Check",
          "tickable": true,
          "source_confidence": 0.98
        },
        {
          "type": "challenge",
          "text": "Fuel Contents",
          "tickable": true,
          "source_confidence": 0.98
        },
        {
          "type": "action",
          "text": "Primer",
          "response": "Neutral",
          "tickable": true,
          "source_confidence": 0.98
        },
        {
          "type": "action",
          "text": "Shutters",
          "response": "Open & locked",
          "tickable": true,
          "source_confidence": 0.96
        },
        {
          "type": "action",
          "text": "Carb heat",
          "response": "Cold",
          "tickable": true,
          "source_confidence": 0.98
        },
        {
          "type": "action",
          "text": "Controls",
          "response": "Full Free",
          "tickable": true,
          "source_confidence": 0.98
        },
        {
          "type": "action",
          "text": "Harnesses",
          "response": "Secure",
          "tickable": true,
          "source_confidence": 0.98
        },
        {
          "type": "challenge",
          "text": "Canopy As req.",
          "tickable": true,
          "source_confidence": 0.96
        },
        {
          "type": "action",
          "text": "Strobes",
          "response": "ON",
          "tickable": true,
          "source_confidence": 0.98
        },
        {
          "type": "action",
          "text": "Transponder",
          "response": "ON",
          "tickable": true,
          "source_confidence": 0.98
        }
      ],
      "criticality": "normal"
    },
    {
      "phase": "takeoff",
      "title": "TAKEOFF",
      "items": [
        {
          "type": "action",
          "text": "VR",
          "response": "100kph",
          "tickable": true,
          "source_confidence": 0.95
        },
        {
          "type": "action",
          "text": "Climb",
          "response": "170 kph",
          "tickable": true,
          "source_confidence": 0.96
        },
        {
          "type": "action",
          "text": "Gear",
          "response": "UP",
          "tickable": true,
          "source_confidence": 0.98
        },
        {
          "type": "challenge",
          "text": "Power to 82%, 80 cms or as req.",
          "tickable": true,
          "source_confidence": 0.92
        },
        {
          "type": "action",
          "text": "T's & P's",
          "response": "Check",
          "tickable": true,
          "source_confidence": 0.98
        }
      ],
      "criticality": "normal"
    },
    {
      "phase": "before_landing",
      "title": "BEFORE LANDING",
      "items": [
        {
          "type": "challenge",
          "text": "Power to 70% & 40 cms",
          "tickable": true,
          "source_confidence": 0.93
        },
        {
          "type": "challenge",
          "text": "Abeam touchdown area",
          "tickable": true,
          "source_confidence": 0.95
        },
        {
          "type": "action",
          "text": "200 kph GEAR",
          "response": "DOWN, check lights and poles.",
          "tickable": true,
          "source_confidence": 0.91
        },
        {
          "type": "challenge",
          "text": "170 kph Flaps",
          "tickable": true,
          "source_confidence": 0.92
        },
        {
          "type": "action",
          "text": "Approach",
          "response": "150kph",
          "tickable": true,
          "source_confidence": 0.95
        },
        {
          "type": "challenge",
          "text": "PUFA CHECK on finals",
          "tickable": true,
          "source_confidence": 0.96
        }
      ],
      "criticality": "normal"
    },
    {
      "phase": "after_landing",
      "title": "AFTER LANDING",
      "items": [
        {
          "type": "challenge",
          "text": "Taxi clear of r'way & STOP.",
          "tickable": true,
          "source_confidence": 0.96
        },
        {
          "type": "action",
          "text": "Strobes & TX",
          "response": "OFF",
          "tickable": true,
          "source_confidence": 0.98
        },
        {
          "type": "challenge",
          "text": "FLAPS Identify and raise",
          "tickable": true,
          "source_confidence": 0.96
        },
        {
          "type": "action",
          "text": "Shutters",
          "response": "Open",
          "tickable": true,
          "source_confidence": 0.98
        },
        {
          "type": "action",
          "text": "Converters",
          "response": "OFF",
          "tickable": true,
          "source_confidence": 0.98
        }
      ],
      "criticality": "normal"
    },
    {
      "phase": "shutdown",
      "title": "SHUT DOWN",
      "items": [
        {
          "type": "challenge",
          "text": "Cool engine to 150 CHT",
          "tickable": true,
          "source_confidence": 0.93
        },
        {
          "type": "action",
          "text": "Electric's",
          "response": "OFF",
          "tickable": true,
          "source_confidence": 0.98
        },
        {
          "type": "action",
          "text": "Mags",
          "response": "OFF",
          "tickable": true,
          "source_confidence": 0.98
        },
        {
          "type": "challenge",
          "text": "Air tap & shutters Close",
          "tickable": true,
          "source_confidence": 0.95
        },
        {
          "type": "challenge",
          "text": "Water drain. Bleed",
          "tickable": true,
          "source_confidence": 0.92
        },
        {
          "type": "challenge",
          "text": "Control locks. As req.",
          "tickable": true,
          "source_confidence": 0.94
        },
        {
          "type": "action",
          "text": "Manifold drain",
          "response": "OPEN",
          "tickable": true,
          "source_confidence": 0.97
        }
      ],
      "criticality": "normal"
    },
    {
      "phase": "other",
      "phase_label": "USE ONLY AS A GUIDELINE",
      "title": "USE ONLY AS A GUIDELINE",
      "items": [
        {
          "type": "note",
          "text": "THIS IS NOT AN APPROVED CHECKLIST.",
          "tickable": false,
          "source_confidence": 0.98
        }
      ],
      "criticality": "normal"
    }
  ]
}