Garmin G1000 Nxi System Maintenance Manual page 369

Note that Model B300/B300C aircraft with installation of the Sierra Nevada Corporation
(SNC) Aircraft Survivability System (ASE) include a large external doubler and cover
plate which are within the RVSM critical region as shown in
. These items are installed by SNC drawing number 01211012, B300 Aft ASE Provisions
Installation. For these aircraft, the RVSM critical region must meet the following additional
visual inspection criteria:
The fillet seal around the perimeter of the external doubler must be smooth and uniform.
The protruding head screws must be installed tightly against the cover plate.
The cover plate must fit smoothly against the external doubler.
G1000 NXi System Maintenance Manual
King Air 300 Series
190-00716-N1
AFT
EXTERNAL DOUBLER
COVER PLATE
STATIC PORTS
OXYGEN SERVICING DOOR
(RH SIDE ONLY)
AFT
Page 356
Revision 1