Primus II RNZ: AD 2010-07-02

May 2010

Honeywell has issued Airworthiness Directive (AD) 2010-07-02 for Primus II RNZ units addressing erroneous localizer and glideslope indications that have occurred on certain aircraft equipped with the following Honeywell part numbers:

• 7510100 -811 thru -814
• -831 thru -834
• -901 thru -904
• -911 thru -914
• -921 thru -924
• -931 thru -934

The AD affects the following NV-850 navigation modules (part of the RNZ) without Mod T.

• 7510134-811, -831, -901, -931
• 7510134-611, -631, -701, -731

This AD ensures that the flightcrew has accurate localizer and glideslope deviation indications. An erroneous localizer or glideslope deviation indication could lead to the making of an approach off the localizer, which could result in impact with an obstacle or terrain.

Basically, AD 2010-07-02 requires the following part numbers to be converted:

NV-850 Part Numbers		Converted to (with Mod T installed)
7510134	-811	7510134	-611
	-831		-631
	-901		-701
	-931		-731

The AD is a simple process that requires a microwave pad for the NV-850 and installation of new Product, ID and Mod plates to the RNZ and NV-850 for future quick reference that the AD has been complied with.

Best of all, this AD is covered under Honeywell warranty. For more information about the Honeywell warranty, contact a Components Solutions Tech Rep.

Component Solutions Tech Reps

Cable, Jerry - Accessory Tech Rep - Lincoln, NE (LNK). Aviation professional since 1991. Airframes: Astra, Challenger, Citation, Embraer, Falcon, Gulfstream, Hawker, Learjet, King Air, Global, Westwind Hydraulic equipment and pumps, Pneumatic valves, Wheel and Brake, Emergency Power Supplies, Electric Motors, Mechanical Actuators, Landing Gear and Accessory Components and Systems Specialist. Direct: 402.479.8112 Mobile: 402.432.0154

Campbell, Curt - Avionics Tech Rep - Lincoln, NE (LNK). Aviation professional since 1975. Airframes: Challenger, Hawker, Learjet, King Air, Global Air Data Computer, Auto Pilot Systems, EFIS, Roll Modules, Mode Couplers and Selectors, Static Inverters, Servos, Spoiler System, Tool Calibration Lab, Flight Guidance Computer, Cabin Displays, and EFD Components and Systems Specialist. Direct: 402.479.4220 Mobile: 402.416.8832

Magnus, Dan - Avionics Tech Rep - Lincoln, NE (LNK). Aviation professional since 1976. Airframes: Citation, Embraer, Gulfstream, Hawker, King Air ADF, Comms, Control Heads, CVR, DME Gables Control Heads, Receivers, Nav-Comm/Receivers, Radar Systems, GPS, GNS, Transponders and UNS Components and Systems Specialist. Direct: 402.479.4217 Mobile: 402.416.1870

Schultz, Gerry - Avionics Tech Rep - Lincoln, NE (LNK). Aviation professional since 1965. Airframes: Hawker, King Air Instrumentation, Vertical and Directional Gyros, Airspeed Indicators, HSI, ADI, Encoders, Course Indicator, Rate Gyro, Directisyn, Vertisyn, RMI and Pitot Static Components and Systems Specialist. Direct: 402.479.4212 Mobile: 402.416.4742

Troyer, Larry - Avionics Tech Rep - Lincoln, NE (LNK). Aviation professional since 1982. Airframes: Astra, Falcon, Hawker, King Air, Westwind Air Data Computer, Auto Pilot Systems, EFIS, Roll Modules, Mode Couplers and Selectors, Static Inverters, Servos, Spoiler System, Cabin Displays, and EFD Components and Systems Specialist. Direct: 402.479.4219 Mobile: 402.416.8835

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