AIRCRAFT ENGINEERINGDATA PACKAGES

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AIRCRAFT ENGINEERING/DATA PACKAGES
Presentation 8

• Bill Schinstock
• Wichita Aircraft Certification Office

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Part 91 Appendix GOperations in RVSM Airspace

• Section 1 Definitions
• RVSM Group Aircraft
• RVSM Non-group aircraft
• RVSM Full and Basic Flight Envelopes
• Section 2 Aircraft Approval
• (b) Aircraft Engineering Data Package Content
• (c) Required Aircraft Altitude-keeping
  Equipment
• (d) Altimetry System Error (ASE) Containment
  for pre-April 9, 1997 aircraft

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Appendix G Content

• (e) ASE Containment for post-April 9, 1997
  aircraft
• (f) ASE Containment for Non-group aircraft
• (g) TCAS II Compatibility with RVSM Operations
• (h) Administrator finding of compliance

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91-RVSM Guidance

• 91-RVSM Reference Paragraphs
• Appendix 7 Table of Contents
• Paragraph 6 Approval Process
• Paragraph 7 RVSM Performance Requirements
• Paragraph 8 Aircraft Systems
• Paragraph 9 Airworthiness Approval
• Appendix 1 Explanation of W/?
• Appendix 2 Altimetry System Error Components
• Appendix 3 Establishing and Monitoring Static
  Source Errors

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91-RVSM Guidance (cont.)

• Manufacturers and Approved Design Organizations
  use part 91 Appendix G and supporting 91-RVSM
  guidance to
• Gain Aircraft Certification Office approval of
  RVSM Data Package containing data and analysis
  justifying RVSM Airworthiness Approval for group
  and non-group aircraft
• Gain ACO approval, for in-service aircraft, of
  SB, SL or STC to be applied by operators to bring
  aircraft into RVSM compliance (i.e., required
  inspections and/or modifications)
• Gain ACO approval, for new-build aircraft, of
  statements of RVSM eligibility in Airplane Flight
  Manual and/or Type Certificate Data Sheet (TCDS)

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Aircraft Approval Requirements

• Aircraft may be approved to RVSM requirements as
  Group aircraft or Non-group aircraft
• Must meet Appendix G minimum aircraft equipage
  requirements
• Required aircraft avionics systems must meet
  Appendix G performance tolerances
• Continued airworthiness instructions must be
  provided, if found necessary

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Aircraft Approved for World-wide Operations

• RVSM compliant aircraft are eligible for RVSM
  operations world-wide
• FAA and JAA aircraft approval criteria
  established for world-wide approvals
• Assumptions such as high density traffic used in
  criteria development

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Approval Objective

• The objective of airworthiness approval for
  RVSM operations is to demonstrate that the design
  and manufacture of the aircraft, its systems, and
  their installation can meet the performance
  criteria necessary for RVSM operation, as defined
  in Part 91 Appendix G.

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Basis of RVSM Airworthiness Approval

• The altimetry system performance for any aircraft
  is governed by the appropriate certification
  requirements
• i.e., FAR/JAR 25.1325, "Static Pressure Systems.
• RVSM airworthiness approval is in addition to the
  requirements defined by the aircraft's
  certification basis.

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Airworthiness Approval

• Airworthiness authorities (e.g., ACOs) have
  approved RVSM data packages for most aircraft
  types.
• The data packages
• Identify the approved aircraft type or group
• Detail how the manufacturer has verified the
  altimetry system performance

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Minimum Equipment for RVSM Operations

• Two independent altitude measurement systems
• Each system should be composed of the following
  elements
• Cross-coupled static source system
• Static source error correction (SSEC), if needed
  to meet the ASE requirements
• An altitude alert system
• An automatic altitude control system
• Note Altitude reporting transponder equipage
  required by 91.215.

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Equipment Tolerances(Reference Appendix G)

• ASE Requirements Basic Envelope Full
  Envelope
• Group Aircraft Mean ASE of the group lt80 ft
  (25m) lt120 ft (37m)
• (pre April 1997) Mean ASE 3SD lt200 ft
  (60m) lt245 ft (75m)
• Group Aircraft N/A
  Mean ASE lt80 ft (25m)
• (post April 1997) N/A
  Mean ASE 3SD lt200 ft (60m)
• Non-group Aircraft Residual static source error
  lt200 ft (60m)
• worst case avionics lt160 ft (50m)
• ALTITUDE ALERT LIMIT 300 ft Altitude
  Deviations
• Aircraft applying for type certification after
  April 1997 200 ft
• AUTOMATIC ALTITUDE CONTROL SYSTEM 65 ft (20m)
  about acquired altitude Note For aircraft type
  certified prior to April 1997, FMS/PMS system
  with 130 ft variations allowed

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Definition of Flight Envelopes
FAA/JAA documents evaluate ASE requirements
against the basic flight envelope and the full
envelope
Full RVSM Envelope
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Definition of Flight Envelopes

• Basic RVSM Envelope
• Same as full envelope except upper Mach boundary
• Upper Mach boundary not less than long range
  cruise plus 0.04 Mach
• Note Basic envelope is not applicable to post
  April 1997 group aircraft

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TCAS II, Version 7.0

• Appendix G amended in December 2001
• "After March 31, 2002, unless otherwise
  authorized by the Administrator, if you operate
  an aircraft that is equipped with TCAS II in RVSM
  airspace, it must be a TCAS II that meets TSO
  C-119b (Version 7.0), or a later version.
• Applicable to US-registered aircraft, not FAA
  controlled oceanic airspace

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Operator Documents

• For operator action, aircraft RVSM compliance
  documents have taken the form of
• For In-service Aircraft
• Manufacturers Service Bulletins and Letters
• Supplemental Type Certificates
• Aircraft Service Change for Gulfstream aircraft
• For New-production aircraft manufactured in
  compliance with Appendix G
• Statement of Compliance in AFM and/or TCDS
• All documents approved by Aircraft Certification
  Offices

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Aircraft Engineering Package Availability

• Access FAA RVSM Website (http//www.faa.gov/ats/at
  o/rvsm1.htm)
• Access RVSM Documentation page
• Find Aircraft Engineering Packages under
• Small Commercial/General Aviation Aircraft Docs
• Large Transport Documentation
• Find Aircraft Manufacturer Contacts under
  Contacts

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Aircraft Certification Webpage

• Located on RVSM Documentation Webpage
• Lists ACO Contacts, Frequently Asked Questions,
  Regulations, Guidance and Policy Letters