Instruction Manual

Page 7-46 G1000 / GFC 700 System Maintenance Manual - 300/B300 Series King Air
Revision 4 190-00716-01
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 Figure 7-10. 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.
AFT
STATIC PORTS
OXYGEN SERVICING DOOR
(RH SIDE ONLY)
AFT
COVER PLATE
EXTERNAL DOUBLER
Figure 7-10, RVSM Critical Region (modified)
7.25.3 RVSM Static Port Height Inspection
The Gauging Assembly p/n SPF-4 (A1M-BCH-GE) is available from Hawker Beechcraft. Any alternate
tool authorized in the Super King Air 300 or B300 Maintenance Manual for RVSM static port
measurements may be substituted for this tool. Initialize the tool as follows:
1. Make sure the dial indicator reads negative when the plunger is pressed and positive when the
plunger is free.
2. Place the gauging assembly on a flat surface (gauge block or equivalent.)
3. Ensure the smaller needle is at approximately (.1).
4. Rotate the dial indicator to set the large needle at (0) as shown in Figure 7-11.