Piper Aztec PA-23-250 & Apache PA-23-235 Illustrated Parts Catalog

Description

Complete Factory Illustrated Parts Breakdown for Piper PA-23 Aircraft

The Piper Aztec PA-23-250 & Apache PA-23-235 Illustrated Parts Catalog provides airframe and powerplant mechanics, restoration specialists, and aircraft owners with an exhaustive visual reference and part-number identification source for Piper PA-23 series twin-engine aircraft. Published under Piper Aircraft Corporation publication number 753 522 and revised through July 1984, this catalog delivers complete exploded-view diagrams, part nomenclatures, sub-assembly indention structures, quantities required per assembly, and exact serial-number applicability across the production run of both the PA-23-235 Apache and all six-place PA-23-250 Aztec variants.

File Details

• Manual Type: Illustrated Parts Catalog
• Brand: Piper Aircraft Corporation
• Applicable Models:
  • PA-23-235 Apache
  • PA-23-250 Aztec
  • PA-23-250 (Six Place) Aztec (Models B, C, D, E, and F)
• Publication Part Number: 753 522 (PR840712)
• Original Issue Date: August 15, 1972
• Revision Date: Revised July 1984
• Language: English
• Page Count: 684 pages
• File Format: Portable Document Format (PDF)

Serial Number & Model Applicability

This Piper Aztec PA-23-250 & Apache PA-23-235 Illustrated Parts Catalog contains precise serial-effectivity listings essential for locating the correct original equipment parts, interchangeable revisions, and optional equipment installations across the following production series:

• 1960 Aztec PA-23-250: Serial numbers 27-1 through 27-366 inclusive
• 1961 Aztec PA-23-250: Serial numbers 27-367 through 27-504 inclusive
• Apache PA-23-235: Serial numbers 27-505 through 27-622 inclusive
• Aztec PA-23-250 (Six Place) Model B: Serial numbers 27-2000 through 27-2504 inclusive
• Aztec PA-23-250 (Six Place) Model C: Serial numbers 27-2505 through 27-3836 inclusive, and 27-3838 through 27-3943 inclusive
• Aztec PA-23-250 (Six Place) Model D: Serial numbers 27-3837, 27-3944 through 27-4425 inclusive, and 27-4427 through 27-4573 inclusive
• Aztec PA-23-250 (Six Place) Model E: Serial numbers 27-4426, 27-4574 through 27-7554168 inclusive
• Aztec PA-23-250 (Six Place) Model F: Serial numbers 27-7654001 and up

Parts Catalog Organization & Code Structure

Every group in the Piper Aztec PA-23-250 & Apache PA-23-235 Illustrated Parts Catalog is structured to ensure positive, error-free identification of replacement components. Listings are organized across six functional columns:

• Figure and Index Number: Cross-references each listed item directly to its corresponding detailed engineering illustration.
• Part Number: Shows the exact Piper part number required for requisitions and ordering.
• Code: Identifies specialized notes, optional equipment conditions, voltage configurations (14-volt or 28-volt), and specific airframe modifications.
• Nomenclature: Displays the approved part title, with indentation levels using asterisks to illustrate parent-assembly and sub-component relationships.
• No. Req.: Indicates the total quantity utilized per installation or within that specific sub-assembly.
• Serial Numbers Affected: Pinpoints the exact airframe serial boundaries for part changes, service kit installations, and factory improvements.
• Attaching Parts: Standard AN and MS commercial hardware specifications (bolts, washers, nuts, and clevis pins) are itemized directly following the main assemblies they secure.

Chapters Covered

• Section I — Wing Group
  • Wing Installation
  • Flap Assembly and Aileron Assembly
  • Wing and Wing Tip Construction
  • Wing and Wing Tip Skin
• Section II — Fuselage Group
  • Complete Fuselage
  • Fuselage Forward Section (PA-23-235 and PA-23-250)
  • Fuselage Forward Section (PA-23-250 Six Place)
  • Fuselage Center Section
  • Fuselage Bottom Fairing
  • Fuselage Aft Section
  • Fuselage Frame Assembly
  • Instrument Panel Installation (Serial Nos. 27-1 to 27-3836, 27-3838 to 27-3943)
  • Instrument Panel Installation (Serial Nos. 27-3837, 27-3944 to 27-7305234)
  • Instrument Panel Installation (Serial Nos. 27-7305222, 27-7405235 to 27-7405476)
  • Instrument Panel Installation (Serial Nos. 27-7554001 and up)
  • Dual Instrument Panel Installation (Serial Nos. 27-7405235 to 27-7405476)
  • Dual Instrument Panel Installation (Serial Nos. 27-7554001 and up)
  • Dual Instrument Lines and Right Pitot Static System Installation
  • Control Pedestal Installation
  • Floorboard and Cockpit Finishing Installation
  • Window Curtains Installation
  • Fuselage Enclosure Installation
  • Baggage Door Assembly and Cabin Door Assembly
  • Oxygen System Installation
  • Seats Installation
  • Vacuum Pump Installation
  • Airspeed, Static, Oil Pressure and Manifold Pressure Lines
  • Ventilating System Installation
  • Heater Installation & Stewart Warner / Janitrol Heater Assemblies
• Section III — Chassis Group
  • Gear Strut Assemblies
  • Nose Gear Installation & Nose Wheel Assembly
  • Main Gear Installation & Main Wheel Assembly
  • Brake Installation, Dual Brake Installation & Brake Assembly
• Section IV — Tail Surfaces Group
  • Tail Installation
  • Stabilator Assembly
  • Rudder Assembly & Fin Assembly
• Section V — Power Plant Group
  • Power Plant Installation
  • Turbocharger Installation (Airesearch and Lycoming)
  • Propeller & Governor Linkages
  • Propeller Synchronizer & Synchrophaser Systems
  • Engine Baffles, Exhaust Collectors & Nacelle Installations
• Section VI — Fuel System Group
  • Fuel System & Fuel Injection System Installations
  • Fuel Cell Installation & Wing Tip Fuel Tank Installation
  • Fuel System Control Box
• Section VII — Electrical System Group
  • Fuselage and Wing Electrical Wiring Installations
  • Battery Box Installations (14-Volt and 28-Volt)
  • Pedestal and Instrument Panel Electrical Harnesses
  • Lighting Systems (Taxi, Strobe, Post, and Glar-Ban)
  • External Power Supply & Deicer Systems (Propeller and Pneumatic)
• Section VIII — Hydraulic System Group
  • Hydraulic Powerpak Components & System Installations
  • Wing and Fuselage Hydraulic Plumbing
  • Landing Gear Anti-Retraction Valve & Emergency Gear Extender
• Section IX — Control System Group
  • Engine Controls, Pedestal Levers, and Push-Pulls
  • Stabilator, Aileron, and Rudder Cable Control Systems
  • Tail Trim Mechanism & Trim Tab Interconnect System
• Section X — Electronics Group
  • Avionics Installations (Collins, ARC, King, Narco, and Bendix)
  • Radio Junction Boxes (14V and 28V) & Antennas
  • Emergency Locator Transmitter (ELT) Installations
  • Autopilot Systems (AutoControl I, II, III, IIIB; AltiMatic I, II, III, IIIB-1, IIIC, V, V F/D, X)
  • Flight Director, Weather Radar, and Encoding Altimeter Installations
• Section XI — Miscellaneous Group
  • Optional Equipment Kits, Repair Kits, Special Service Tools, and Airframe Decals
  • Complete Numerical Part Number Index

For aircraft technicians, airframe and powerplant mechanics, and restoration shops, having the complete Piper Aztec PA-23-250 & Apache PA-23-235 Illustrated Parts Catalog provides the definitive factory record of every individual casting, bracket, structural rib, plumbing line, and piece of hardware across the airframe. By detailing exact part numbers alongside clear exploded structural views, this catalog eliminates guesswork when sourcing replacement components, verifying airframe serial effectivity, confirming hardware specifications, and disassembling or reassembling complex mechanical linkages.

Essential Parts Reference for Maintenance and Maintenance Compliance

Working on multi-engine aircraft demands absolute adherence to certified parts standards. This Piper Aztec PA-23-250 & Apache PA-23-235 Illustrated Parts Catalog enables technicians and owners to verify component authenticity, trace part supersessions, cross-reference AN and MS attachment hardware, and accurately execute airframe repairs, annual inspections, and structural rebuilds. Delivered as an instant high-quality digital PDF download, this manual is immediately accessible on desktop computers, workshop laptops, and tablets in the hangar, and allows individual pages or entire sections to be printed on demand for hands-on reference at the aircraft.