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March 2010
8-6 Information Manual
Section 8 Cirrus Design
Handling, Servicing, Maintenance SR20
Airworthiness Directives
The Federal Aviation Administration (FAA) publishes Airworthiness
Directives (AD’s) that apply to specific aircraft and aircraft appliances
or accessories. AD’s are mandatory changes and must be complied
with within a time limit set forth in the AD. Operators should
periodically check with Cirrus Service Centers or A&P mechanic to
verify receipt of the latest issued AD for their airplane.
Airplane Inspection Periods
• Note •
FAR 1.1 defines time in service, with respect to maintenance
time records, as “the time from the moment an aircraft leaves
the surface of the earth until it touches it at the next point of
landing.”
Serials 1633, 1639 and subsequent: The #2 Hour Meter,
located in the center console and labeled FLIGHT, begins
recording when the airplane reaches approximately 35 KIAS
and should be used to track maintenance time intervals as it
more accurately records time in service than the #1 Hour
Meter which begins recording when the BAT 1 switch is ON
and either the ALT 1 or ALT 2 switch is ON.
The inspection items specified in the Annual/100 Inspection
have been determined by the average aircraft use rate of the
typical owner. Non-commercially operated aircraft that are
flown significantly more than 100 hours per year should
consider additional inspections commensurate with the hours
flown. 100-Hour Inspection or enrollment in a Progressive
Inspection Program should be considered in addition to the
normally required Annual Inspection. The Annual Inspection
interval may also be shortened to accommodate high
utilization rate.
Annual Inspection
Unless enrolled in a Progressive Inspection Program, The U.S.
Federal Aviation Regulations require all civil aircraft must undergo a
thorough Annual Inspection each twelve calendar months. Annual
Inspections are due on the last day of the twelfth month following the
March 2010
Information Manual 8-7
Cirrus Design Section 8
SR20 Handling, Servicing, Maintenance
last Annual Inspection. For example: If an Annual Inspection were
performed on 19 November 1998, the next Annual Inspection will be
due 30 November 1999. Annual Inspections must be accomplished
regardless of the number of hours flown the previous year and can
only be performed by a licensed Airframe and Powerplant (A&P)
mechanic holding an Inspection Authorization (IA). All Cirrus
Authorized Service Centers can perform Annual Inspections. The
inspection is listed, in detail, in Chapter 5 of the Aircraft Maintenance
Manual.
100-Hour Inspection
If the airplane is used commercially, in addition to the Annual
Inspection requirement, the Federal Aviation Regulations requires that
the airplane undergo a 100-Hour Inspection each 100 hours of flight
operation. The scope of the 100-Hour Inspection is identical to the
Annual Inspection except that it can be accomplished by a licensed
A&P mechanic. The 100-hour interval may be exceeded by not more
than 10 flight hours in order to reach a place where the inspection can
be accomplished. Any flight hours used to reach an inspection station
must be deducted from the next 100-Hour Inspection interval. The
inspection is listed, in detail, in Chapter 5 of the Aircraft Maintenance
Manual.
Cirrus Design Progressive Inspection Program
In lieu of the above requirements, an airplane may be inspected using
a Progressive Inspection Program in accordance with the Federal
Aviation Regulation Part 91.409.
The Cirrus Design Progressive Inspection Program provides for the
complete inspection of the airplane utilizing a five-phase cyclic
inspection program. A total of eight inspections are accomplished over
the course of 400 flight hours, with an inspection occurring every 50
flight hours. The inspection items to be covered in the Progressive
Inspection are very similar to the Annual Inspection items. The
Progressive Inspection will accomplish a full Inspection of the airplane
at 400 flight hours or at 12 calendar months. The inspection is listed, in
detail, in Chapter 5 of the Aircraft Maintenance Manual.
March 2010
8-8 Information Manual
Section 8 Cirrus Design
Handling, Servicing, Maintenance SR20
Pilot Performed Preventative Maintenance
The holder of a Pilot Certificate issued under FAR Part 61 may
perform certain preventive maintenance described in FAR Part 43,
Appendix A. This maintenance may be performed only on an aircraft
that the pilot owns or operates and which is not used in air carrier
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