RVSM APPROVALS DATABASE AND MONITORING

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RVSM APPROVALS DATABASE AND MONITORING
Presentation 13

• Separation Standards Group
  FAA Technical Center
• Atlantic City, New Jersey

V. 1.6
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Access to Information on RVSM Approvals Database

• Information on RVSM approvals databases is posted
  on the RVSM Documentation Webpage
• See Registration on RVSM Approvals Databases in
  the Table of Contents
• US aircraft and operators are registered on
• US Operator/Aircraft RVSM Approvals Database
  primarily through FAA inspector inputs to PTRS
• Normally no action required of operators

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CONTACT FOR U.S. OPERATORS

• For U.S. operators and AFS field offices, contact
  for RVSM Approvals Database or RVSM Monitoring
  questions is
• U.S. Operator/Aircraft RVSM Approvals DB and
  Monitoring Coordinator
• Wayne.Smoot_at_faa.gov
• Ph 609-485-5475
• Fax [phone]

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Contact For Non-U.S. Operators

• NAARMO Website is linked from FAA RVSM Homepage
• Also linked from RVSM Documentation Webpage
  Registration section
• http//www.tc.faa.gov/act-500/niaab/rvsm/naarmo_in
  tro.asp
• Contact Richard Soper, NAARMO Operations
  Coordinator, at NAARMO_at_faa.gov

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• Monitoring Requirements and Procedures

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Access to Information

• See Monitoring Requirements/Procedures section on
  RVSM Documentation Webpage
• Instructions for Using Minimum Monitoring Charts
  and Procedures from Different Regions
• Monitoring Procedures for US Operators
• North American RVSM Minimum Monitoring
  Requirements and requirements for other regions
• ICAO group working to harmonize requirements

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TWO ASPECTS OF MONITORING GOALS

• Need to ensure that individual operators and
  aircraft meet applicable safety goals
• Need to ensure that North American airspace
  system as a whole meets applicable safety goal -
  the Target Level of Safety (TLS)
• Monitoring of aircraft height-keeping performance
  assists in confirming that both aspects of safety
  goals are satisfied

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MONITORING HEIGHT-KEEPING PERFORMANCE
FL 350 Constant Pressure Altitude
FL 350 Geometric Height
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HEIGHT-KEEPING PERFORMANCE ERRORS
FL 350 Geometric Height
Total Vertical Error (TVE)
Altimetry System Error Assigned
Altitude Deviation ASE AAD
Aircraft geometric height
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GMS MONITORING AND THE STATE APPROVAL PROCESS

• GPS-based Monitoring System (GMS), improved with
  enhanced GPS Monitoring Unit, plays a prominent
  role in supporting operator/aircraft satisfaction
  of monitoring requirements associated with RVSM
  approval process---including those for DRVSM

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GPS Monitoring Unit (GMU)
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Enhanced GPS Monitoring Unit (EGMU)
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Typical GMU Installation
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GPS-Based Monitoring SystemData Flow
Airborne GPS-based Monitoring Unit (GMU)
Remote Reference Station
Differential Data
Flight Information Form (FIF)
Post-flight Processing Station
Data Transmitted Post-Flight
Via Internet/Direct
Flight Information Form (FIF)
FAA Technical Center Database
Database (Monitoring Results)
Vertical Error Processing FAA Technical Center
ASE Results
Mode C Data
Meteorological Data (Height of flight level)
Queries
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GMS Vertical Error Calculation Process
Determine Aircraft Geometric Height
GMU
TVE (Total Vertical Error)
GPS Reference Station
ASE (Altimetry System Error)
Determine Flight Level (FL) Height
Meteorological Data
Cleared FL (FIF)
AAD (Assigned Altitude Deviation)
Mode C Data
Compare Cleared FL to Actual Altitude
Cleared FL (FIF)
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Height Monitoring Unit (HMU)

• EUROCONTROL and North Atlantic Ground-based
  system capable of monitoring height-keeping
  performance of an aircraft within (roughly) 40-nm
  of ground stations and producing estimate of ASE
  in near real-time
• Advantage able to monitor large number of
  aircraft per day (conceptually, all which pass
  over ground stations)
• Disadvantage aircraft must fly over HMU site

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(No Transcript)
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DRVSM Monitoring System

• Aircraft Geometric Height Measurement Element
  (AGHME) Atlantic City prototype in final stages
  of testing
• Wichita AGHME shipped to site
• Cleveland and Roanoke, Va. AGHME constellations
  scheduled for deployment
• AGHME constellations to be located near Ottawa
  and Lethbridge in Canada.
• Aircraft should fly straight and level at or
  above FL290 over the AGHME monitoring area.

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AGHME Constellation
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Sites Under Investigation
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MONITORING GOALS ASSOCIATED WITH STATE RVSM
APPROVAL
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MINIMUM AIRCRAFT SYSTEM PERFORMANCE SPECIFICATION
(MASPS)

• Performance which aircraft group must be capable
  of achieving in service, regardless of airspace
  where RVSM is applied
• Mean altimetry system error (ASE) of the group lt
  80 ft in magnitude
• Sum of the absolute value of the mean plus 3
  standard deviations of ASE for group lt 245 ft
• Errors in altitude-keeping symmetric about a mean
  of 0 ft, have a standard deviation lt 43 ft
  and have error frequency which decreases at least
  exponentially with increasing error magnitude

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Monitoring Policies

• INITIAL MONITORING. In application to the
  appropriate State authority for RVSM approval,
  operators must show plan for meeting monitoring
  requirements necessary to receive RVSM approval.
• AIRCRAFT STATUS FOR MONITORING. Aircraft
  engineering work that is required to bring the
  aircraft into compliance with RVSM standards must
  be completed prior to the aircraft being
  monitored.
• Participation in an approved monitoring program
  is required in accordance with the chart,
  however, monitoring not required prior to the
  grant of RVSM operational approval

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Monitoring Policies (cont.)

• APPLICABILTY OF MONITORING FROM OTHER REGIONS.
  Operator monitoring results obtained from one
  region may be used to satisfy other regions
  requirements.
• TRAILING CONE DATA. If aircraft documented to be
  in approved RVSM configuration, trailing cone
  data can be used to fulfill monitoring
  requirements
• FOLLOW-ON MONITORING. Monitoring will continue
  after initial RVSM implementation. A
• follow-on program will be coordinated after
  reviewing results.

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BACKGROUND TO ESTABLISHMENT OF CURRENT MONITORING
GOALS

• FAA participated actively in the introduction of
  the North Atlantic (NAT) and Pacific RVSM
• NAT, Pacific and European monitoring has produced
  substantial number of height-keeping performance
  estimates for aircraft types typically observed
• Monitoring requirements reduced substantially
  from original 1997 set as monitoring results for
  individual aircraft types became available and
  compliance with requirements was established with
  high confidence

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MONITORING GOALS Category 1
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MONITORING GOALS Category 2
Note If 60 percent of the North American fleet
yields a fractional number, round up to the next
whole aircraft (e.g., for a fleet of 2 aircraft,
0.6 x 2 1.2 therefore, 2 aircraft must be
monitored).
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MONITORING GOALS Category 3
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Process to Perform Monitoring

• See RVSM Documentation Webpage
• See Monitoring Requirements and Procedures
  section