Cirrus SR20 Maintenance Manual

C I R R U S
A I R P L A N E M A I N T E N A N C E M A N U A L
1. DESCRIPTION
This chapter provides information necessary to properly level the airplane for any of the various mainte-
nance, overhaul, or major repairs which might become necessary.
For general longitudinal leveling, the cabin door sill edge is parallel within 0.10° relative waterline 100. The
door sill is used in conjunction with a spirit level to determine airplane ground attitude.
Serials 1005 thru 1422: For specific longitudinal leveling, two forward leveling points are located on either
side of the cowl at fuselage station 99.00. One aft point is located on the tailcone access flange under the
horizontal stabilizer on the right side, at fuselage station 299.00. The leveling points are used in conjunc-
tion with a transit to determine ground attitude.
Serials 1423 & subs: For specific longitudinal leveling, two forward leveling points are located on either side
of the cowl at fuselage station 98.4. One aft point is located below the RE1 empennage access panel aft of
the horizontal stabilizer, at fuselage station 316.8. Pegged ruler gauges suspended from the leveling points
are used in conjunction with a transit to determine ground attitude.
For general lateral leveling, a straight edge may be placed across both cabin door sills. The door sill is
used in conjunction with a spirit level to determine airplane ground pitch.
For specific lateral leveling, an alignment brace bar may be placed across the upper engine mount weld-
ment attach points. The attach points are used in conjunction with a digital level to determine airplane
ground pitch.
EFFECTIVITY:
All
LEVELING
M O D E L S R 2 0
08-10
Page 1
15 Jun 2010