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Old 29th April 2019 | 12:08
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RVDT
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From: After all, what’s more important than proving to someone on the internet that they’re wrong? - Manson
More than likely a Metro mod as just about every 135 delivered in the US was completed by them rather than AHI.

Single Pilot IFR Avionics Installation Kit PN 135M-I50 and I35M-250 installed by Metro Aviation, Inc. in the ECI35 helicopter.


EQUIPMENT MAINTENANCE MANUAL

SINGLE PILOT IFR AVIONICS INSTALLATION

PART I SYSTEM DESCRIPTION

CHAPTER 23


As a requirement for IFR the GPS system requires forced air cooling for the GPS/NAV/COM System.
A supplemental avionics fan is installed to provide this as well as for the transponder for added reliability.
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