PA-34-220T Seneca IV & V Airplane Maintenance Manual PDF (2002 Revision)

Description

Piper PA-34-220T Seneca IV & V Airplane Maintenance Manual – Factory-Level Technical Data

This is the complete Piper Aircraft PA-34-220T Seneca IV / V Maintenance Manual, issued by The New Piper Aircraft, Inc. It is the definitive factory-authorized publication for maintaining, inspecting, and repairing these twin-engine, turbocharged aircraft. This document is the primary source of Instructions for Continued Airworthiness as required by FAR Part 23, Appendix G.

Document Details

• Manual Type: Factory Airplane Maintenance Manual (Instructions for Continued Airworthiness)
• Part Number: 761-888
• Applicability: Piper PA-34-220T Seneca IV (Serial Numbers 3447001 through 3447029) and Seneca V (Serial Numbers 3449001 and up).
• Language: English
• Page Count: 1,342 pages (over five Aerofiche cards)
• File Format: Digitally scanned PDF replicating the original Aerofiche manual
• Revision Status: This version includes revisions up to May 31, 2002 (3R0502) and November 15, 1998 (2R1198), ensuring it contains the most up-to-date procedures for the listed serial numbers.

This manual is organized according to GAMA Specification No. 2 and uses a system-based chapter numbering format (e.g., 28-40-00 for the Fuel System). It includes detailed text, illustrations, charts, and wiring diagrams to guide you through every maintenance task.

Chapters Covered

The manual covers every major system of the Seneca IV and V with chapter-specific procedures. The following is a representative list of the main sections and their contents:

• Chapter 4 – Airworthiness Limitations: Mandatory replacement times and structural inspection intervals required for type certification, including the 500-hour replacement requirement for the nose gear upper drag link bolt assembly (P/N 400-274).
• Chapter 5 – Time Limits/Maintenance Checks: Defines the 50, 100, 500, and 1000-hour scheduled inspection programs (Annual/100 Hour, Progressive, and Special Inspections). Includes detailed procedures for propeller, engine, cabin, fuselage, wings, landing gear, and operational inspections. Also covers unscheduled checks for lightning strike, severe turbulence, and hard landings.
• Chapters 6-12 – General & Servicing: Dimensions, jacking, leveling, weighing, towing, parking, placards, and complete servicing instructions for fuel, oil, oleo struts, brakes, tires, and airframe lubrication (includes detailed lubrication charts).
• Chapter 20 – Standard Practices – Airframe: Cherrylock rivet removal, identification of fluid lines, flareless tube assemblies, self-lubricating bearings, torque wrench formulas, and maximum allowable resistance values for electrical bonding.
• Chapter 21 – Environmental Systems: Complete overhaul and troubleshooting of the combustion heater (including spark plug, ignition unit, and fuel regulator service) and the air conditioning system (R12 for Seneca IV, R134a for Seneca V). Covers leak detection, evacuation, and charging procedures.
• Chapter 22 – Autoflight: General information for the automated flight control systems (Bendix/King and S-TEC).
• Chapter 23 – Communications: Emergency Locator Transmitter (ELT) battery replacement and testing for Narco 910 and Artex 110-4 units.
• Chapter 24 – Electrical Power: DC generation, alternator system (60 amp on Seneca IV, 85 amp on Seneca V), battery servicing, alternator control unit (Lamar B-00382-1) bench testing, and electrical load distribution charts.
• Chapter 25 – Equipment/Furnishings: Seat and console removal/installation, lumbar seat bladder repair, and shoulder harness inertia reel adjustment.
• Chapter 26 – Fire Protection: Servicing of the portable halon fire extinguisher.
• Chapter 27 – Flight Controls: Comprehensive rigging, adjustment, and repair of aileron, rudder, stabilator, and electrically operated flap systems. Includes control cable inspection techniques, pulley wear patterns, and stall warning system setup.
• Chapter 28 – Fuel: Fuel system operation (128-gallon capacity), storage (metal tanks and bladder cells), distribution (selector valve, electric and engine-driven pumps), and indicating (fuel quantity sender calibration for both Seneca IV and V). Includes detailed repair procedures for the Goodyear Vithane fuel cells.
• Chapter 29 – Hydraulic Power: Oildyne hydraulic pump servicing, landing gear free-fall valve, and gear actuating cylinder overhaul.
• Chapter 30 – Ice and Rain Protection: Pneumatic deice system (boots, valves, timer), electrical prop deice (slip rings, brush assemblies), heated windshield, and pitot/stall warning heat.
• Chapter 32 – Landing Gear: Disassembly, inspection, and reassembly of main and nose gear oleo struts. Also covers wheel and brake systems (Cleveland 30-83), parking brake valve, toe brake cylinders, limit switch adjustments, and squat switch rigging.
• Chapters 33-37 – Lights, Navigation, Oxygen, Vacuum: Annunciator panel troubleshooting, strobe and navigation lights, pitot-static system, radar altimeter, and the fixed oxygen system (including hydrostatic test requirements).
• Chapters 51-57 – Structures & Doors: Fiberglass/thermoplastic repair procedures, wing removal and installation, control surface balancing (aileron, rudder, stabilator), and door snubber installation.
• Chapter 61 – Propellers: Maintenance, removal, installation, and rigging of Hartzell two-blade and McCauley three-blade propellers. Covers the propeller governor, synchrophaser (magnetic pickup), and unfeathering accumulator.
• Chapters 71-81 – Power Plant & Engine Systems: Engine cowling removal, engine mount replacement, engine removal/installation, fuel injection system (Continental and RSA-5), ignition system (magneto timing and harness inspection), engine control rigging, starting motor, turbocharger system (Rayjay and Garrett), and oil system service.
• Chapter 91 – Charts & Wiring Diagrams: Comprehensive torque tables, conversion charts, consumable materials list, and complete wiring diagram index covering all aircraft systems.
• Chapter 95 – Special Equipment: Dimensions and fabrication instructions for essential shop tools including the control surface balancing tool, tire balancer, and various rigging tools.

This manual provides the official, step-by-step maintenance procedures for the entire Seneca IV and V aircraft. It is an essential resource for any owner, operator, or A&P mechanic performing scheduled inspections, troubleshooting malfunctions, or conducting repairs. The detailed instructions include critical torque values, clearances, and safety checks that are not available in generic publications.

Save Time, Avoid Mistakes, and Ensure Airworthiness

Having the correct technical documentation is not a luxury—it is a necessity. Using this factory-issued manual ensures that you are working with the exact procedures that Piper Aircraft uses to certify the airworthiness of the Seneca. It contains the approved data necessary for performing 100-hour, annual, and progressive inspections, as well as complex tasks like engine replacement, landing gear rigging, and flight control surface balancing.

With instant PDF delivery, you can have this comprehensive 1,342-page manual on your computer, tablet, or phone within minutes of purchase. Search for any term, navigate directly to the chapter you need, and print only the pages required for the job. No more waiting for shipping or trying to decipher poor-quality photocopies.

This is the complete, unaltered factory manual that will help you maintain your Seneca IV or V to the highest standard of safety and performance.