Airworthiness Directives for the Piper PA-42 Cheyenne 400
Piper PA-42 Cheyenne 400 · Airworthiness Directives
Overview
This document outlines the airworthiness directives for the Piper PA-42 Cheyenne 400, specifically focusing on the new propeller specifications and enhancements. It provides detailed information on the advantages of the new propeller system, including improvements in performance metrics such as take-off distance, climb rate, and cruising speeds. The document also lists the contents of the STC kit, including installation instructions and operational manuals, which are essential for maintaining compliance and safety. This information is crucial for pilots and maintenance personnel to ensure the aircraft operates efficiently and safely under the new specifications.
- Take-off distance over a 50 ft obstacle reduced by approx. 5%.
- Enhanced climb performance by approx. 3% under standard conditions.
- Cruising speeds increased by approx. 5 knots at FL250 and 11,500 lbs GW.
- Total weight of new propellers is approx. 52 lbs less than original.
- Propeller maximum diameter is 98.4 inches.
Document
Source
Originally published by www.mcfarlaneaviation.com. Sprinkle hosts a reference copy with an added summary, specifications and searchable full text.
Document details
- Type
- Airworthiness Directives
- Pages
- 1
- File size
- 299 KB
- Publisher
- www.mcfarlaneaviation.com
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In this document
Advantages of New Propeller System
The new propeller system offers significant benefits, including improved vibration damping for smoother operations, reduced take-off distance over a 50 ft obstacle by approximately 5%, and enhanced climb performance by about 3%. Additionally, cruising speeds can increase by approximately 5 knots at altitude, and the total weight of the propellers is reduced by about 52 lbs compared to the original design.
STC Kit Contents
The STC kit includes two 5-blade reversing and full feathering constant speed propellers, two full composite spinners, and several important documents such as the AFM Supplement and Installation Instructions. These components are essential for the installation and continued airworthiness of the propellers.
Propeller Specifications
The propellers are designated MTV-27-1-E-C-F-R(G)/CFR250-103 for the left and right wings, respectively. They feature a milled single-piece aluminum hub and a scimitar blade design made from lightweight natural composite materials. The maximum and minimum diameter of the propellers is 98.4 inches, and the total installed weight is 329 lbs.
Safety notes
- Ensure compliance with the latest SB for TBO requirements.
- Follow installation instructions carefully to maintain airworthiness.
Full document text
Advantages: • Best vibration damping characteristics for almost vibration free propeller operations • Bonded on nickel alloy leading edge for best erosion protection of the blades • Take-off distance over 50 ft obstacle reduced by approx. 5% (SL, ISA, MTOW) • Enhanced climb by approx.3% (SL, ISA conditions, MTOW) increasing by altitude • Enhanced cruising speeds by approx. 5 kts + (ISA, FL250, 11500 lbs GW) • Approx. 52 lbs less total weight than the original propellers • Unlimited blade life • Significant inside and outside noise reductions, jet aircraft feeling • FOD repairable blades STC Kit Contents: FAA STC: SA03487AT • Two 5-Blade Reversing And Full Feathering Constant Speed Propeller MTV-27-1-E-C-F-R(G)/CFR(L)250-103 • Two Full Composite Spinner (AFRP) P-1006 • One AFM Supplement Doc. No. E-1410 (EASA), E-1473 (FAA) • One Installation Instruction Doc. No. E-1411 (EASA), E-1474 (FAA) • One Instruction For Continued Airworthiness Doc. No. E-1412 (EASA), E-1475 (FAA) • One Operation and Installation Manual ATA 61-06-10 (E-610) Propeller Specifications: • Full Propeller Designation (right) MTV-27-1-E-C-F-R(G)/CFRL250-103 • Full Propeller Designation (left) MTV-27-1-E-C-F-R(G)/CFR250-103 • Propeller Hub MTV-27-1-E-C-F-R(G) Milled single-piece aluminum hub • Blade (right wing, ccw rotation) CFRL250-103 • Blade (left wing, cw rotation) CFR250-103 • Blade Design Scimitar, light-weight natural composite • Installed Propellers & Spinner Total Weight 329 lbs • Maximum Diameter 98.4 in. • Minimum Diameter 98.4 in. • TBO According to SB 1 ( ) latest issue Options: Full Composite Spinner (AFRP) painted in silver Replaces: 4-Blade Dowty Rotol R341/4-123-F/9, R339/4-123-F/8 Piper PA-42-1000 PA-42-1000 (Cheyenne 400LS) Engine: Honeywell TPE331-14A/B A Division of World’s Largest MT-Propeller Distributor To learn more about this prop 866-717-1117 www.Flight-Resource.com For other products 800-544-8594 www.McFarlaneAviation.com
What's in the Piper PA-42 Cheyenne 400 TCDS
A Type Certificate Data Sheet (TCDS) is the FAA's record of what an aircraft type was approved as. It is the source of truth for weights, seating, fuel and the rules the design was certified against. Expand any line to see what it means.