SUBJECT: REDUCED VERTICAL SEPARATION MINIMUM
QUALIFICATIONS
MODEL: 737-300 to -500
APPLICABILITY: All 737-300 to -500 Airplanes
REFERENCES: a) FAA Memorandum 91-RVSM, “Interim Guidance for Approval of
Aircraft for Reduced Vertical Separation Minimum (RVSM) Flight”,
latest revision
b) Boeing Service Bulletin 737-53-1180, “Fuselage - Section 41 Skin -
Qualification for Reduced Vertical Separation Minimum (RVSM),
latest revision
c) Boeing 737-300/-400/-500 Airplane Flight Manual, Section 3 Normal
Procedures, “Reduced Vertical Separation Minimum (RVSM)”
d) Boeing 737-300/-400/-500 Airplane Maintenance Manual, Section 51-
10-00 pages 601-609 “Reduced Vertical Separation Minimum
(RVSM) Inspection/Check”, latest revision
e) Boeing 737-300/-400/-500 Structural Repair Manual, Section 51-10-
01 “Aerodynamic Smoothness”, latest revision
f) Boeing 737-300/-400/-500 Maintenance Review Board Report
(MRBR); 737-MRB, latest revision
SUMMARY:
This service letter provides information concerning qualification of Model 737-300/-400/-500
airplanes to use Reduced Vertical Separation Minimum (RVSM) airspace.
BACKGROUND:
The Federal Aviation Administration (FAA) and the International Civil Aviation Organization
(ICAO) North Atlantic System Planning Group (NATSPG) have implemented Reduced Vertical
Separation Minimum (RVSM) operations. RVSM was implemented in the North Atlantic (1997),
in Europe (2002) and is also currently implemented in other parts of the world. The FAA plans to
737-SL-02-014-B
30 June 2004
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commence domestic RVSM operations on January 20, 2005. RVSM airspace will allow airplanes
to operate at more efficient altitudes, provide more routes to operators and increase enroute
airspace capacity. RVSM airspace is any airspace where airplanes are vertically separated by
1,000 feet (300 m) between Flight Level 290 and 410 inclusive.
The FAA has released reference a) Interim Guidance 91-RVSM which provides detailed guidance
for operators and aircraft manufacturers to follow when designing programs to meet the
requirements of Section 91.706 and Part 91 Appendix G. Joint Aviation Authorities (JAA)
Temporary Guidance Leaflet (TGL) No. 6; North Atlantic Region (NAT) NAT Doc 002; and
Asia/Pacific Approval Registry and Monitoring Organization (APRMO) “The Guidance Material
on the Implementation of a 300m (1000ft) Vertical Separation Minimum (VSM) for Application
in the Airspace of the Pacific Region” are all equivalent to reference a). Aircraft manufacturers
are required to obtain regulatory approval for each airplane type intending to use RVSM airspace.
Operators are required to obtain regulatory approval for each individual airplane intending to use
RVSM airspace. To obtain certification to operate in RVSM airspace it is the operator's
responsibility to gather and present the required data to their regulatory agency. The three main
primary components for RVSM certification are: 1) Proper aircraft configuration; 2) Crew
training and awareness; and 3) An approved maintenance program to ensure the aircraft continues
to be RVSM capable. Each operator is also required to obtain regulatory approval for
maintenance programs and operational procedures required for RVSM operations. In addition,
each operator must participate in the height keeping verification and monitoring program.
Detailed information concerning RVSM airworthiness, maintenance, and operational data is
provided in Attachments I) and II) to assist operators in qualifying their Model 737-300/-400/-
500 airplanes for operations in RVSM airspace. |