Deviates from RTCA DO-227 by permitting, for articles of LiFeS2 chemistry, a 5% change in Open Circuit Voltage during the temperature tests, if it remains less than 5% for the complete sequence and if it is shown to meet the 2% limit within 45 days
Deviates from ETSO-C142a by using RTCA DO-227A, corrected to permit the use of an appropriate limiting voltage for the Cell Discharge Current Test, instead of DO-227 modified by Appendix 1 of ETSO-C142a
Deviates from ETSO-C142a by using RTCA DO-227A with a corrected testing pattern for battery humidity test instead of DO-227 modified by Appendix 1 of ETSO-C142a
Deviates from RTCA DO-214A section 18.104.22.168 a. by using a 3 nF capacitor instead of 0.01 pF, inserted between channel input and output for stability tests.
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 22.214.171.124 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.
Deviates from ETSO-C142a by using revision A of RTCA DO-227
Deviates from RTCA DO-301 by permitting higher input noise temperatures for antennas specified in section 2.3 when a higher gain of the passive radiating element maintains compliance to the gain-to-noise ratio (G/T) specified in section 2.2.5.
Correction of RTCA DO-301 inconsistency on the Active Sub-assembly Input Noise Temperature.
Deviates from SAE AS8009A section 3.11 and from SAE AS8009B section 3.12 to not display ALTITUDE or ALT next to the tape indicating altitude nor the altitude range.