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PIPER NAVAJO CHIEFTAIN PA-31-350

Piper PA-31 Navajo Chieftain · Checklist

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Overview

This document serves as a checklist for the Piper PA-31 Navajo Chieftain, specifically the PA-31-350 model. It outlines operational limitations, emergency procedures, and critical performance data necessary for safe flight operations. The checklist is intended for pilots operating this aircraft, providing essential information on speeds, engine performance, fuel specifications, and emergency protocols. It emphasizes the importance of adhering to specified limits and procedures to ensure safety during flight operations.

  • Maximum Takeoff Weight: 7,000 lbs
  • Maximum Continuous Engine Power: 350 HP
  • Vne: 236 KIAS, Vno: 185 KIAS, Vs: 77 KIAS
  • Fuel Capacity: 192 U.S. gallons (usable: 182 gallons)
  • Maximum Crosswind Component: 25 KIAS

Document

Source

Originally published by www.dgac.gob.cl. Sprinkle hosts a reference copy with an added summary, specifications and searchable full text.

View original at www.dgac.gob.cl

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Document details

Type
Checklist
Pages
4
File size
19 KB
Publisher
www.dgac.gob.cl
Documentation completeness
4/7

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In this document

Operational Limitations

This section details the operational limitations for the Piper PA-31 Navajo Chieftain, including critical speeds such as Vne (236 KIAS), Vno (185 KIAS), and Vso (74 KIAS). It also specifies engine performance limits, including maximum continuous power of 350 HP and RPM limits ranging from 600 to 2,575 RPM. Fuel specifications are provided, indicating a total capacity of 192 U.S. gallons with 182 gallons usable.

Emergency Procedures

The emergency procedures section outlines steps to take in various failure scenarios, including engine failure during takeoff and in-flight. For engine failure during takeoff at or below 85 KIAS, pilots are instructed to close the throttle and apply brakes as necessary. If above 85 KIAS, maintain directional control and feather the propeller of the inoperative engine, with specific airspeed targets for safe maneuvering.

Weight Limitations

This section provides weight limitations for the aircraft, stating a maximum takeoff weight of 7,000 lbs, with forward and aft baggage limits of 200 lbs each. Adhering to these weight limits is crucial for safe flight operations.

Safety notes

  • Ensure to follow specified engine RPM limits: Max 2,575 RPM, Min 600/650 RPM
  • Maintain airspeed above Vs during critical phases of flight to avoid stall
  • In case of engine failure, prioritize maintaining directional control and airspeed

Full document text

1 DEPARTAMENTO “SEGURIDAD OPERACIONAL” SUBDEPARTAMENTO “LICENCIAS” SECCIÓN EVALUACIONES “PIPER NAVAJO CHIEFTAIN PA-31-350” “MUTUAL DE SEGURIDAD” A.- Limitaciones de Operación 1.- Limitaciones (Velocidades) KIAS Va 162 Vne 236 Vno 185 Vfe 15° 162 Vle 153 Vmca 76 Vs 77 Vso 74 Vx 84 Vy 101 Vsse 92 Vxse 104 Vyse 106 Vr 85 Vapp Flap DN 95 Max Cross Wind 25 4.- Motor (Potencia Máxima Continua) Limitaciones Operativas de Motor Razón HP o BHP 350 Máximas RPM 2.575 RPM estáticas Máximas 2.575 Mínimas 600/650 Exh. Gas Temp. (°F) 1.650 Cyl. Heat Temp. (°F) 500 Temperatura de aceite (°F) Máxima 245 Mínima 50 Presión de aceite (PSI) Máxima 100 Mínima 25 2.- Combustible (U.S. GAL) Tipo a Utilizar 100/130 Capacidad Total 192 Combustible Usable 182 Presión de Combustible (PSI) Mínima 34 Máxima 55 5.- Limites de maniobras (Cat. Normal) MANIOBRA KIAS Spin (Flaps UP) PROHIBIT Escarpados PROHIBIT 3.- Pesos (LBS) Máximo TAKE-OFF 7.000 Máximo Baggaje FWD 200 Máximo Baggaje AFT 200 2 B.- Emergencies Procedures 1.- ENGINE FAILURE DURING NORMAL TAKEOFF (85 KIAS or below) a.- If Sufficient runway remains for a safe stop: Throttle IMMEDIATELY CLOSE Brakes AS REQUIRED Stop Straight Ahead b.- If Insufficient runway remains for a safe stop: Throttle IMMEDIATELY CLOSE Mixture IDLE CUT-OFF Master Switch OFF Fuel Selector OFF Magnetos Switches OFF Maintain directional control and maneuver to avoid obstacles. 2.- ENGINE FAILURE DURING NORMAL TAKEOFF (above 85 KIAS) Directional Control MAINTAIN Power (Oper. Engine) MAXIMUM CONTINUOUS Propeller Control (Inop. E.) FEATHER Landing Gear RETRACT Bank 5° into operative engine Airspeed 95 KIAS to 50 ft then accelerate to 104 KIAS Cowl Flaps (Inop. Eng.) CLOSE Airspeed 106 KIAS after all obstacles have been cleared Engine Securing Procedures COMPLETE Land as soon as practical at the nearest suitable. 3 3.- ENGINE FAILURE DURING FLIGHT (ABOVE 76 KIAS) Inoperative engine IDENTIFY Operative engine ADJUSTED AS REQUIRED Airspeed Attain and Maintain at least 106 KIAS Before securing inoperative engine: Fuel Flow CHECK (if deficient – emergency fuel pump ON) Fuel Quantity CHECK Fuel Selector (inop. Eng.) Switch to other tank containing fuel Oil pressure and temperature CHECK Magneto switches CHECK Air Start ATTEMPT If engine does not start, complete Engine Securing Procedure Power (Oper. Eng.) AS REQUIRED Mixture (Oper. Eng.) ADJUST FOR POWER Fuel Quantity (Oper. Eng. Tank) SUFFICIENT Emergency Fuel Pump (Oper. Eng.) AS REQUIRED Cowl Flap (Oper. Eng.) AS REQUIRED Trim ADJUSTED (5° bank into operative engine) Electrical Load Decrease to minimum required Land as soon as practical at nearest suitable airport 4 4.- ENGINE FIRE ON GROUND Firewall Fuel Shutoff OFF Emergency Fuel Pump OFF Boost Pump CB PULLED Brakes AS REQUIRED Throttle (affect engine) OPEN Radio Call for assistance Mixture (if fire persists) IDLE CUT-OFF External fire extinguisher USE If fire continues, shutdown both engines and evacuate. If fire is on the ground, it may be possible to taxi away. 5.- ENGINE FIRE IN FLIGHT Firewall Fuel Shutoff OFF Throttle IDLE Propeller Control FEATHER Mix IDLE CUT OFF Inoperative Engine SECURE If fire persists: Airspeed Increase in attempt to blow out fire Land as soon as possible at the nearest suitable airport

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