1. Why is RVSM Height Monitoring Required?
All operators are required to participate in the regional monitoring program as per ICAO Annex 6 part 1.
This participation usually means an operator will need to monitor individual aircraft of each type that
they operate based on the Minimum Monitoring Requirement time table (ICAO/RMA MMR table).
2. When should I get my airframe/s height monitored?
Every 24 months or 1000 flight hours
3. What is required to conduct an RVSM Monitoring flight?
Height monitoring flights may be conducted during scheduled, ferry or special monitor flights -
Data will be collected for at least 30 minutes during straight and level flight between flight
levels 290 & 410 - Data collected outside of RVSM levels CANNOT be used for RVSM certification
- Altimetry System Error Calculation will not use data where aircraft turns occur. RVSM data must
be straight and level flight, as much as possible. Data on circle‐track flights will be invalid for RVSM purposes.
- Altimetry System Error Calculation will not use data where GPS position quality is degraded, or GPS signal is
lost. Collecting a minimum of 30 minutes should provide enough data to eliminate inconsistencies. - Two windows
are required for placement of EGMU GPS Antenna(s). - The window(s) used should be free of metallic defrosting/heating
elements, if possible, as it may negatively affect satellite reception. - For this reason (and possible security issues)
, EGMU antennas installs on Flight Deck or Cockpit windows should be avoided unless there is no other install option.
- Cabin window installs should be the standard procedure and will be used when possible as such customers should be
prepared to keep one row free for use by RVSM specialist. - GPS reception may also be negatively hindered by Cabin
Wireless Networks (WIFI). Please disable aircraft WIFI systems during EGMU RVSM Monitoring Flights. - Air crew will
be required to furnish the RVSM specialist with the aircrafts transponder code prior to data recording commencing and
should provide notice along with the relevant time in case of any changes so as to allow for the ARD system to function
correctly. - It should be noted that the ARD system is a passive system which relies on outside interrogations e.g.
ATC or Traffic in order to read the transponder. - As such should you operate in a sparsely populated airspace the ARD
may not receive sufficient information should this be the case a manual altimetry recording will be required for the
duration of the monitor. - The RVSM specialist will provide flight crew with a manual altimeter log and instruct them
in its correct use to provide supplementary information for the height monitor system.
4. How long will it take to get the results of my RVSM Monitoring Flight?
ARMA completes the initial processing of the data collected during a monitoring flight and ASE result calculations within two (2) weeks. Upon completion of the final ASE results, ARMA will provide the results of the monitoring flight to the Operator and operator’s State Authority.
5. I need a progress update on my project, how can I get one?
How do I find the 3 letter ICAO Airline Code to complete the F2 and F3 Forms? ICAO Doc 8585 or follow the link: List_of_airline_codes_(S)
6. What is Height Monitoring?
Aircraft height-keeping performance monitoring is a quality check on the engineering work and approval process associated with the safety of RVSM operations
7. How do I schedule an E2GMU monitoring flight?
To schedule a RVSM monitoring flight contact ARMA at arma.africa or email armad@atns.co.za
8. How long does it take to conduct a RVSM monitoring flight?
The ARMA Team will temporarily set up the E2GMU in your aircraft (this takes approximately 15 to 20 minutes prior to taxi) and will need to collect approximately 30 to 45 minutes of data at level flight within RVSM airspace (FL290-410)