<?xml version="1.0" encoding="UTF-8"?>
<openChecklist version="1.0">
  <title>Piper PA-28-181 Archer III — Emergency Procedures</title>
  <contentHash>93016fd46fb28dd9014bf960a54a4fe5f618c0e97c137dcd93b452fe3157ea57</contentHash>
  <aircraft make="Piper" model="PA-28-181" variant="Archer III" category="standard_normal"/>
  <verification sourceFidelity="not_applicable" operationalReview="none" completeness="partial"/>
  <rights status="original_expression" license="CC-BY-4.0"/>
  <knownIssue severity="safety_defect">Contains no airspeeds, power settings, or other numeric limits — must come from aircraft POH.</knownIssue>
  <knownIssue severity="safety_defect">Emergency procedures must be studied, briefed, and practiced. This file is an aide-memoire. Aviate first, then navigate and communicate.</knownIssue>
  <knownIssue severity="content_gap">Equipment variations across this production run may affect available systems during emergencies. Verify all procedures against the specific aircraft POH before flight.</knownIssue>
  <sections>
    <section id="engine-failure-before-rotation" phase="engine_failure_before_rotation" criticality="emergency">
      <title>Engine Failure on Takeoff Roll (Before Lift-Off)</title>
      <item type="action" index="0" tickable="true" memoryItem="true" indent="0" id="engine-failure-before-rotation-1">
        <text>Throttle</text>
        <response>CLOSE IMMEDIATELY</response>
      </item>
      <item type="action" index="1" tickable="true" memoryItem="true" indent="0" id="engine-failure-before-rotation-2">
        <text>Brakes</text>
        <response>APPLY FIRMLY — STOP ON REMAINING RUNWAY</response>
      </item>
      <item type="action" index="2" tickable="true" memoryItem="true" indent="0" id="engine-failure-before-rotation-3">
        <text>Mixture</text>
        <response>IDLE CUT-OFF</response>
      </item>
      <item type="action" index="3" tickable="true" memoryItem="true" indent="0" id="engine-failure-before-rotation-4">
        <text>Ignition</text>
        <response>OFF</response>
      </item>
      <item type="action" index="4" tickable="true" memoryItem="true" indent="0" id="engine-failure-before-rotation-5">
        <text>Fuel selector</text>
        <response>OFF</response>
      </item>
      <item type="action" index="5" tickable="true" memoryItem="true" indent="0" id="engine-failure-before-rotation-6">
        <text>Master switch</text>
        <response>OFF</response>
      </item>
      <item type="action" index="6" tickable="true" memoryItem="false" indent="0" id="engine-failure-before-rotation-7">
        <text>Evacuate aircraft if fire or fuel spill present</text>
        <response>AS REQUIRED</response>
      </item>
    </section>
    <section id="engine-failure-after-takeoff" phase="engine_failure_after_takeoff" criticality="emergency">
      <title>Engine Failure After Lift-Off</title>
      <item type="action" index="0" tickable="true" memoryItem="true" indent="0" id="engine-failure-after-takeoff-1">
        <text>Best glide airspeed — pitch immediately to conserve altitude and extend glide range</text>
        <response>ESTABLISH PER POH</response>
      </item>
      <item type="action" index="1" tickable="true" memoryItem="true" indent="0" id="engine-failure-after-takeoff-2">
        <text>Landing area — select best available surface straight ahead or with the smallest practical turn; avoid low turns to return to runway</text>
        <response>SELECTED</response>
      </item>
      <item type="action" index="2" tickable="true" memoryItem="true" indent="0" id="engine-failure-after-takeoff-3">
        <text>Throttle</text>
        <response>CLOSE</response>
      </item>
      <item type="action" index="3" tickable="true" memoryItem="true" indent="0" id="engine-failure-after-takeoff-4">
        <text>Flaps — adjust for selected landing surface; partial flap may allow steeper descent to a short field</text>
        <response>AS REQUIRED FOR TERRAIN</response>
      </item>
      <item type="action" index="4" tickable="true" memoryItem="true" indent="0" id="engine-failure-after-takeoff-5">
        <text>Mixture</text>
        <response>IDLE CUT-OFF BEFORE TOUCHDOWN</response>
      </item>
      <item type="action" index="5" tickable="true" memoryItem="true" indent="0" id="engine-failure-after-takeoff-6">
        <text>Ignition</text>
        <response>OFF BEFORE TOUCHDOWN</response>
      </item>
      <item type="action" index="6" tickable="true" memoryItem="true" indent="0" id="engine-failure-after-takeoff-7">
        <text>Master switch</text>
        <response>OFF BEFORE TOUCHDOWN</response>
      </item>
    </section>
    <section id="engine-failure-in-flight" phase="engine_failure_in_flight" criticality="emergency">
      <title>Engine Failure in Flight</title>
      <item type="action" index="0" tickable="true" memoryItem="true" indent="0" id="engine-failure-in-flight-1">
        <text>Best glide airspeed — establish immediately to maximize range and time available</text>
        <response>ESTABLISH PER POH</response>
      </item>
      <item type="action" index="1" tickable="true" memoryItem="true" indent="0" id="engine-failure-in-flight-2">
        <text>Landing area — identify best available field or surface within glide range</text>
        <response>SELECTED</response>
      </item>
      <item type="action" index="2" tickable="true" memoryItem="true" indent="0" id="engine-failure-in-flight-3">
        <text>Carburetor heat</text>
        <response>ON — apply immediately; carb ice may have caused the failure</response>
      </item>
      <item type="action" index="3" tickable="true" memoryItem="true" indent="0" id="engine-failure-in-flight-4">
        <text>Fuel selector — switch to the tank with more fuel; verify selector is on a tank</text>
        <response>FULLEST TANK</response>
      </item>
      <item type="action" index="4" tickable="true" memoryItem="true" indent="0" id="engine-failure-in-flight-5">
        <text>Mixture</text>
        <response>RICH</response>
      </item>
      <item type="action" index="5" tickable="true" memoryItem="true" indent="0" id="engine-failure-in-flight-6">
        <text>Throttle</text>
        <response>ADVANCE — check if partial power is available</response>
      </item>
      <item type="action" index="6" tickable="true" memoryItem="false" indent="0" id="engine-failure-in-flight-7">
        <text>Primer — ensure closed and locked; an unlocked primer can lean the mixture</text>
        <response>IN AND LOCKED</response>
      </item>
      <item type="action" index="7" tickable="true" memoryItem="false" indent="0" id="engine-failure-in-flight-8">
        <text>Ignition — cycle through LEFT and RIGHT to identify a failed magneto or broken lead</text>
        <response>CHECK BOTH</response>
      </item>
      <item type="action" index="8" tickable="true" memoryItem="false" indent="0" id="engine-failure-in-flight-9">
        <text>Restart attempt — if engine fails to start and forced landing is committed, execute forced landing checklist</text>
        <response>ATTEMPT OR COMMIT TO FORCED LANDING</response>
      </item>
      <item type="action" index="9" tickable="true" memoryItem="false" indent="0" id="engine-failure-in-flight-10">
        <text>Mayday call — declare emergency with position, altitude, and intentions</text>
        <response>121.5 MHZ OR LAST ATC FREQUENCY</response>
      </item>
    </section>
    <section id="engine-fire-in-flight" phase="engine_fire_in_flight" criticality="emergency">
      <title>Engine Fire in Flight</title>
      <item type="action" index="0" tickable="true" memoryItem="true" indent="0" id="engine-fire-in-flight-1">
        <text>Mixture</text>
        <response>IDLE CUT-OFF — starve the engine of fuel immediately</response>
      </item>
      <item type="action" index="1" tickable="true" memoryItem="true" indent="0" id="engine-fire-in-flight-2">
        <text>Fuel selector</text>
        <response>OFF</response>
      </item>
      <item type="action" index="2" tickable="true" memoryItem="true" indent="0" id="engine-fire-in-flight-3">
        <text>Throttle</text>
        <response>FULL OPEN — draw fuel remaining in the induction system away from the fire</response>
      </item>
      <item type="action" index="3" tickable="true" memoryItem="true" indent="0" id="engine-fire-in-flight-4">
        <text>Ignition</text>
        <response>OFF</response>
      </item>
      <item type="action" index="4" tickable="true" memoryItem="true" indent="0" id="engine-fire-in-flight-5">
        <text>Master switch</text>
        <response>OFF</response>
      </item>
      <item type="action" index="5" tickable="true" memoryItem="true" indent="0" id="engine-fire-in-flight-6">
        <text>Heater and vents — close all fresh-air vents and cabin heat to reduce airflow feeding the fire</text>
        <response>CLOSED</response>
      </item>
      <item type="action" index="6" tickable="true" memoryItem="true" indent="0" id="engine-fire-in-flight-7">
        <text>Airspeed — increase to a speed that may help extinguish the fire by slipstream; do not exceed Vne</text>
        <response>INCREASE WITHIN LIMITS</response>
      </item>
      <item type="action" index="7" tickable="true" memoryItem="true" indent="0" id="engine-fire-in-flight-8">
        <text>Forced landing — execute forced landing procedure immediately; do not delay for a restart</text>
        <response>INITIATE FORCED LANDING</response>
      </item>
    </section>
    <section id="engine-fire-ground" phase="engine_fire_ground" criticality="emergency">
      <title>Engine Fire on Ground (During or After Start)</title>
      <item type="action" index="0" tickable="true" memoryItem="true" indent="0" id="engine-fire-ground-1">
        <text>Starter — continue cranking if fire is in the induction system; cranking may draw fire back through the intake</text>
        <response>CONTINUE CRANKING (induction fire)</response>
      </item>
      <item type="action" index="1" tickable="true" memoryItem="true" indent="0" id="engine-fire-ground-2">
        <text>Throttle — advance to assist drawing fuel and fire into the engine if induction fire</text>
        <response>ADVANCE (induction fire only)</response>
      </item>
      <item type="action" index="2" tickable="true" memoryItem="true" indent="0" id="engine-fire-ground-3">
        <text>Mixture</text>
        <response>IDLE CUT-OFF</response>
      </item>
      <item type="action" index="3" tickable="true" memoryItem="true" indent="0" id="engine-fire-ground-4">
        <text>Fuel selector</text>
        <response>OFF</response>
      </item>
      <item type="action" index="4" tickable="true" memoryItem="true" indent="0" id="engine-fire-ground-5">
        <text>Ignition</text>
        <response>OFF</response>
      </item>
      <item type="action" index="5" tickable="true" memoryItem="true" indent="0" id="engine-fire-ground-6">
        <text>Master switch</text>
        <response>OFF</response>
      </item>
      <item type="action" index="6" tickable="true" memoryItem="true" indent="0" id="engine-fire-ground-7">
        <text>Evacuate — exit all occupants immediately; move upwind away from the aircraft</text>
        <response>EVACUATE IMMEDIATELY</response>
      </item>
      <item type="action" index="7" tickable="true" memoryItem="false" indent="0" id="engine-fire-ground-8">
        <text>Fire extinguisher — use only if fire is small, accessible, and escape route is clear</text>
        <response>AS ABLE; CALL FIRE SERVICES</response>
      </item>
    </section>
    <section id="electrical-fire" phase="electrical_fire" criticality="emergency">
      <title>Electrical Fire / Smoke in Cockpit</title>
      <item type="action" index="0" tickable="true" memoryItem="true" indent="0" id="electrical-fire-1">
        <text>Master switch</text>
        <response>OFF — remove all electrical power</response>
      </item>
      <item type="action" index="1" tickable="true" memoryItem="true" indent="0" id="electrical-fire-2">
        <text>Avionics master switch</text>
        <response>OFF</response>
      </item>
      <item type="action" index="2" tickable="true" memoryItem="true" indent="0" id="electrical-fire-3">
        <text>All electrical switches — lights, fan, pitot heat</text>
        <response>OFF</response>
      </item>
      <item type="action" index="3" tickable="true" memoryItem="true" indent="0" id="electrical-fire-4">
        <text>Vents — open to vent smoke from cockpit; fresh air assists in clearing fumes</text>
        <response>OPEN VENTS, CLOSE HEAT</response>
      </item>
      <item type="action" index="4" tickable="true" memoryItem="false" indent="0" id="electrical-fire-5">
        <text>Fire extinguisher — discharge toward source of smoke if identified and accessible</text>
        <response>AS REQUIRED</response>
      </item>
      <item type="action" index="5" tickable="true" memoryItem="true" indent="0" id="electrical-fire-6">
        <text>Land as soon as practicable — smoke or fumes indicate a potential for rapid fire spread; do not delay</text>
        <response>DIVERT AND LAND</response>
      </item>
      <item type="action" index="6" tickable="true" memoryItem="false" indent="0" id="electrical-fire-7">
        <text>Electrical switches — after smoke clears, restore individual switches one at a time to identify the faulty circuit before landing</text>
        <response>RESTORE SELECTIVELY AS NEEDED</response>
      </item>
      <item type="action" index="7" tickable="true" memoryItem="false" indent="0" id="electrical-fire-8">
        <text>Circuit breakers — do not reset a tripped breaker in flight unless essential for safety; a tripped breaker indicates a fault</text>
        <response>DO NOT RESET UNLESS ESSENTIAL</response>
      </item>
    </section>
    <section id="oil-system-malfunction" phase="oil_system_malfunction" criticality="emergency">
      <title>Loss of Oil Pressure</title>
      <item type="action" index="0" tickable="true" memoryItem="true" indent="0" id="oil-system-malfunction-1">
        <text>Oil pressure gauge — verify indication; cross-check oil temperature for confirming trend</text>
        <response>VERIFY; CROSS-CHECK OIL TEMP</response>
      </item>
      <item type="action" index="1" tickable="true" memoryItem="true" indent="0" id="oil-system-malfunction-2">
        <text>Throttle — reduce power to minimum needed to maintain flight; lower power reduces engine stress</text>
        <response>REDUCE TO MINIMUM REQUIRED</response>
      </item>
      <item type="action" index="2" tickable="true" memoryItem="true" indent="0" id="oil-system-malfunction-3">
        <text>Landing area — identify a suitable field or airport within close range; engine seizure may be imminent</text>
        <response>IDENTIFY NEAREST SUITABLE AREA</response>
      </item>
      <item type="action" index="3" tickable="true" memoryItem="false" indent="0" id="oil-system-malfunction-4">
        <text>Mayday call — declare emergency with position, nature of malfunction, and intentions</text>
        <response>DECLARE EMERGENCY</response>
      </item>
      <item type="action" index="4" tickable="true" memoryItem="true" indent="0" id="oil-system-malfunction-5">
        <text>Land as soon as possible — if pressure is zero or temperature is rising abnormally, do not delay; engine seizure can occur without warning</text>
        <response>LAND IMMEDIATELY</response>
      </item>
      <item type="action" index="5" tickable="true" memoryItem="false" indent="0" id="oil-system-malfunction-6">
        <text>After landing — do not run the engine; inspect for oil loss before any further operation</text>
        <response>SHUT DOWN AND INSPECT</response>
      </item>
    </section>
    <section id="carburetor-icing" phase="carburetor_icing" criticality="abnormal">
      <title>Carburetor Ice</title>
      <item type="action" index="0" tickable="true" memoryItem="true" indent="0" id="carburetor-icing-1">
        <text>Carburetor heat — apply FULL ON at first sign of unexplained RPM loss or engine roughness in cruise or descent</text>
        <response>FULL ON</response>
      </item>
      <item type="action" index="1" tickable="true" memoryItem="false" indent="0" id="carburetor-icing-2">
        <text>RPM — monitor for initial further drop as ice melts and passes through the induction system, followed by recovery</text>
        <response>EXPECT BRIEF DROP THEN RECOVERY</response>
      </item>
      <item type="action" index="2" tickable="true" memoryItem="false" indent="0" id="carburetor-icing-3">
        <text>Throttle — avoid large changes while carburetor heat is applied; heat reduces available power</text>
        <response>STABLE THROTTLE</response>
      </item>
      <item type="action" index="3" tickable="true" memoryItem="false" indent="0" id="carburetor-icing-4">
        <text>Carburetor heat — leave ON until RPM recovers and stabilizes above original indication; then return to COLD</text>
        <response>LEAVE ON UNTIL RECOVERED; THEN COLD</response>
      </item>
      <item type="action" index="4" tickable="true" memoryItem="true" indent="0" id="carburetor-icing-5">
        <text>If RPM does not recover — land as soon as practicable; severe ice accumulation may not fully clear with heat alone</text>
        <response>DIVERT IF NO RECOVERY</response>
      </item>
      <item type="action" index="5" tickable="true" memoryItem="false" indent="0" id="carburetor-icing-6">
        <text>Icing conditions — if conditions are conducive to carburetor ice (temperature between approximately 20 and 70 F with visible moisture or high humidity), apply carburetor heat periodically as a preventive measure</text>
        <response>APPLY PERIODICALLY IN ICING CONDITIONS</response>
      </item>
    </section>
    <section id="forced-landing" phase="forced_landing" criticality="emergency">
      <title>Forced Landing (Power-Off)</title>
      <item type="action" index="0" tickable="true" memoryItem="true" indent="0" id="forced-landing-1">
        <text>Best glide airspeed — establish and maintain throughout the approach; do not let speed decay or build excessively</text>
        <response>ESTABLISH AND MAINTAIN PER POH</response>
      </item>
      <item type="action" index="1" tickable="true" memoryItem="true" indent="0" id="forced-landing-2">
        <text>Landing area — select field considering length, surface, slope, obstacles, and wind direction; commit early</text>
        <response>SELECTED AND COMMITTED</response>
      </item>
      <item type="action" index="2" tickable="true" memoryItem="false" indent="0" id="forced-landing-3">
        <text>Mayday call — transmit position, altitude, nature of emergency, and intended landing area</text>
        <response>121.5 MHZ OR LAST ATC FREQUENCY</response>
      </item>
      <item type="action" index="3" tickable="true" memoryItem="false" indent="0" id="forced-landing-4">
        <text>Transponder</text>
        <response>7700</response>
      </item>
      <item type="action" index="4" tickable="true" memoryItem="true" indent="0" id="forced-landing-5">
        <text>Fuel selector</text>
        <response>OFF</response>
      </item>
      <item type="action" index="5" tickable="true" memoryItem="true" indent="0" id="forced-landing-6">
        <text>Mixture</text>
        <response>IDLE CUT-OFF</response>
      </item>
      <item type="action" index="6" tickable="true" memoryItem="true" indent="0" id="forced-landing-7">
        <text>Ignition</text>
        <response>OFF at short final, prior to flare</response>
      </item>
      <item type="action" index="7" tickable="true" memoryItem="true" indent="0" id="forced-landing-8">
        <text>Master switch</text>
        <response>OFF at short final, prior to flare</response>
      </item>
      <item type="action" index="8" tickable="true" memoryItem="true" indent="0" id="forced-landing-9">
        <text>Seat belts and shoulder harnesses</text>
        <response>CONFIRM TIGHT ON ALL OCCUPANTS</response>
      </item>
      <item type="action" index="9" tickable="true" memoryItem="true" indent="0" id="forced-landing-10">
        <text>Doors — unlatch before touchdown to prevent jamming in impact; hold door slightly ajar</text>
        <response>UNLATCHED BEFORE TOUCHDOWN</response>
      </item>
      <item type="action" index="10" tickable="true" memoryItem="false" indent="0" id="forced-landing-11">
        <text>Flaps — extend on final as needed to control descent angle and landing speed per POH</text>
        <response>AS REQUIRED FOR FIELD AND CONDITIONS</response>
      </item>
      <item type="action" index="11" tickable="true" memoryItem="false" indent="0" id="forced-landing-12">
        <text>After landing — evacuate aircraft promptly and move upwind to prevent injury from possible fire</text>
        <response>EVACUATE AND MOVE CLEAR</response>
      </item>
    </section>
  </sections>
</openChecklist>
