Garmin G1000 Nxi System Maintenance Manual page 314

Air Data Test Set (ADTS) with a combined accuracy/repeatability specification of less than ±20
feet for the test altitude range.
1. Perform pitot static system leak check of each system as described in the King Air 300
Series Maintenance Manual, 34-00-00, with the following changes:
a. For the pitot leak check, set the air data test unit to an indicated airspeed of 200
knots with the static system vented to ambient pressure conditions (ground). Pitot
leak rate is not to exceed 1 knot in 1 minute.
b. For the static leak check, set the air data test set to 30,000 feet and an indicated
airspeed of 120 knots. Static leak rate is not to exceed 300 feet in 1 minute.
2. Connect the pitot/static tester to the aircraft left and right pitot and static ports. Note that
the standby altimeter and airspeed indicator are connected to the copilot side pitot and
static lines.
3. Verify that the PFD1 altimeter baro setting is set to 29.92 in Hg (1013.25 mb).
4. Start PFD1 in configuration mode and navigate to the GRS page. The values for altitude
and airspeed are shown on the AHRS/AIR DATA INPUT table as B ALT and IAS for
both AIR DATA 1 and AIR DATA 2.
5. Simulate the altitudes and airspeeds for each condition shown in Table 7-8. Wait for
ADTS to report that target values have been achieved.
6. On Table 7-8, record the altitude (B ALT) displayed on PFD1 for AIR DATA 1 and
AIR DATA 2 for each condition.
7. On Table 7-8, record the airspeed (IAS) displayed on PFD1 for AIR DATA 1 and
AIR DATA 2 for each condition.
8. Verify that the indicated altitudes and airspeeds are within allowable tolerances.
9. File the results with the aircraft maintenance records.
If either the pilot or copilot air data system does not meet the tolerances specified, have
maintenance checks performed on the air data system or the pitot/static system.
G1000 NXi System Maintenance Manual
King Air 300 Series
190-00716-N1
Page 301
Revision 1