190-01717-B1
G500/G600 TXi Part 23 AML STC Maintenance Manual
Rev. 1
Page 5-51
*
Test points and tolerances correspond with Socata maintenance manual, 34-11-00,Table 503.
5.15.3.2 Surface Checks
The TBM700 series aircraft with RVSM privileges require external checks per Socata Maintenance
Manual 05-10-01, ATA 53 for Standard and Progressive inspection intervals. Refer to Socata Maintenance
Manual 53-00-00 for fuselage surface check procedures.
5.15.3.3 RVSM In-Flight Altitude Hold Check
In addition to the autopilot performance checks specified in this manual, RVSM operation requires that the
autopilot system accurately maintain the acquired altitude during non-turbulent, non-gust cruise
conditions. The autopilot must be shown to meet the performance specification of the following in-flight
altitude hold test.
1. Verify the following conditions (normal RVSM cruise flight):
◦
Altitude FL290 to FL310
◦
Altimeter setting 29.92 in Hg (1013 HPA)
◦
Autopilot altitude hold engaged
◦
Non-turbulent, non-gust conditions
2. Record the data specified in Table 5-7 from the primary cockpit displays every 5 minutes for a
minimum flight segment of 30 minutes in length. The maximum altitude deviation shown on the
display throughout the test should not exceed ±65 feet.
If the aircraft fails to hold altitude to this tolerance, repeat the check ensuring that the airspeed remains
constant and the air remains stable during the entire test. If the test still fails, perform maintenance checks
on the G600 TXi system, then repeat the test. RVSM operations are prohibited until the autopilot is capable
29000
120
29077
29005 to 29149
29005 to 29149
29042 to 29112
150
29113*
29041 to 29185
29041 to 29185
29078 to 29148*
300
29447
29375 to 29519
29375 to 29519
29412 to 29482
33000
120
33090
33018 to 33162
33018 to 33162
33049 to 33131
150
33131*
33059 to 33203
33059 to 33203
33090 to 33172*
300
33519
33447 to 33591
33447 to 33591
33478 to 33560
Table 5-6 Air Data Test Points
Test Point
Nominal
Altitude
(ft)
Altitude Tolerance Range (ft)
Altitude
(ft)
Airspeed
(kts)
Air Data 1
Air Data 2
GSU 75B
GDC 74B
AM 250
