Manual Number 9018233 Revision C, February 21, 2022 9
2.2 LIMITATIONS
The conditions and tests for TSO approval of this article are minimum performance standards.
Those installing this article on or in a specific type or class of aircraft must determine that the
aircraft installation conditions are within the TSO standards, specification of the article, and
deviations listed below. TSO articles must have separate approval for installation in an aircraft. The
article may be installed only according to 14 CFR part 43 or the applicable airworthiness
requirements.
There are some portions of the approved TSOs which represent outdated requirements or do not
apply to the product. These items are highlighted below and have been submitted to and approved
by the FAA as deviations to the TSO certifications of the product. In the case of FAA TSO and
EASA ETSO-C3e, the MD302 has been approved as an ‘incomplete TSO’. The MD302 meets all
TSO requirements for applicable functions (slip) but does not meet requirements associated with
functionality that is not present in the unit (rate of turn). A note below describes further details
regarding the temperature requirements of FAA TSO-C113a, but does not represent a deviation.
FAA TSO-C2d: Airspeed Instruments
instrument is not labeled with “Airspeed” or “IAS”
FAA TSO-C3e: Turn and Slip Instrument
instrument does not provide rate-of-turn functionality
FAA TSO-C4c: Bank and Pitch Instruments
dielectric strength/insulation resistance does not apply due to electronic components between
chassis and connector pins
FAA TSO-C10b: Altimeter, Pressure Actuated, Sensitive Type
instrument is not labeled with “Altitude” or “ALT”
graduation increments are every 25 feet instead of 20 feet
FAA TSO-C113a: Airborne Multipurpose Electronic Displays
display is operable but marginally usable at -30°C. Display is fully functional at
temperatures higher than -30°C.
Heading Display Function
Does not provide independent heading data, the ARINC data is displayed without
reprocessing; if ARINC data is lost the display will read “---“.
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