CS-E, all amendments
Deviates from RTCA DO-214A section 184.108.40.206 a. by using a 3 nF capacitor instead of 0.01 pF, inserted between channel input and output for stability tests.
Applicable to Gulfstream GVII-G500
Deviation Request ETSO-C139a#1 for an ETSO approval for CS-ETSO applicable to Audio Systems and Equipment (ETSO-C139a)
Deviates from RTCA DO-214A section 220.127.116.11 a. and b. by using a Sound Pressure Level of 104 dB SPL if the microphone is linear and if the frequency responses curves in standard conditions are identical at both 104dB SPL and 94dB SPL levels.
Proposed Special Condition on Shorter landing distances on eligible wet Grooved or Porous Friction Course runways - CS 25.125, 25.109, 25.1587 at Amdt 13