User's Manual

Preliminary
GTX 327 Installation Manual Page 15
190-00187-02 Rev 1
A.2 ENVIRONMENTAL QUALIFICATION FORM
NOMENCLATURE: GTX 327 Airborne ATC Transponder Equipment
TYPE/MODEL/PART NO.: 010-00188-( )
TSO/JTSO COMPLIANCE: TSO - C74c Class 1A
JTSO
MANUFACTURER’S SPECIFICATION AND/OR OTHER
APPLICABLE SPECIFICATION: 004-00070-00 minimum Performance Specification
MANUFACTURER: GARMIN INTERNATIONAL
ADDRESS: 1200 E 151st St, Olathe, Kansas 66062
Conditions Section Description of Conducted Tests
Temperature and Altitude 4.0 Equipment tested to Categories A1 & D1 except as noted
Low Temperature 4.5.1 -208 C
High Temperature 4.5.2. & 4.5.3 +558 C
In-Flight Loss of Cooling 4.5.4 Cooling air not required
Altitude 4.6.1 50,000 Feet
Decompression 4.6.2 8,000 to 50,000 Feet
Overpressure 4.6.3 -15,000 Feet
Temperature Variation 5.0 Equipment tested to Category C
Humidity 6.0 Equipment tested to Category A
Shock 7.0 Equipment tested according to DO-160C, Par. 7.2.1
Operational 7.2 6 g’s
Crash Safety 7.3 15 g’s
Vibration 8.0 Equipment tested without shock mounts to Categories B,
M and N (Table 8-1)
Explosion 9.0 Equipment identified as Category X, no test required
Waterproofness 10.0 Equipment identified as Category X, no test required
Fluids Susceptibility 11.0 Equipment identified as Category X, no test required