Aviation Alerts and Advisories

Service Alert 1456: VNAV Zero Foot Altitude Constraint

15 October 2014

PRODUCTS AFFECTED: All G900X, G950, G1000, Cirrus Perspective®, and Embraer Prodigy™ with GDU software versions 13.01 to 13.07, and 14.00 to 14.03, and all G2000/3000/5000 and Embraer Prodigy Touch™ with GDU software versions 2.10 to 3.50, and 4.00 to 4.10 are affected by this alert. ISSUE: The issue occurs with flight plans that contain an ILS approach with a hold leg at the final approach fix (FAF) waypoint. If the hold leg is removed from the flight pl… View complete alert.

Service Alert 1420: Standby Navigation Database

29 April 2014

PRODUCTS AFFECTED: G900X, G950, G1000, Cirrus Perspective, and Embraer Prodigy systems with GDU software versions 13.00 through 13.06, 14.00, and 14.01. G2000, G3000, G5000, and Embraer Prodigy Touch with GDU software versions 3.00 through 3.18 and 4.00 through 4.10. ISSUE: Using the standby navigation database feature may result in the absence of navigation information when the standby navigation database is transferred to the active database. Un… View complete alert.

Service Alert 1381 Rev A: GDL 88 Non-Diversity Transmitter Self Test

26 December 2013

AFFECTED PRODUCTS GDL 88 non-diversity units (single bottom mounted antenna) with Software Version 2.01 or 2.05. GDL 88D diversity units (top and bottom mounted antennas) are not affected. ISSUE GDL 88 non-diversity units with affected software will not send a failure message to the displays in the unlikely event the unit fails to transmit. This condition does not impact the overall reliability of the GDL 88, but can result in the lack of an indication… View complete alert.

Service Alert 1380 Rev A: GNC 255 installations that use the RS-232 NMEA output to display VOR information on external indicators or EFIS/PFD systems

16 December 2013

AFFECTED PRODUCTS GNC 255 series units with Display Software Version 2.01 that are connected to an external EFIS/PFD, excluding G500/G600 systems, are affected. ISSUE If the GNC 255 RS-232 Serial Port is configured to output ‘NMEA’ data, the CDI on an EFIS/PFD using this data will deflect in the wrong direction when the GNC is tuned to a VOR and the TO/FROM flag indicates FROM. This issue is most prevalent in experimental amateur built (EAB) and light … View complete alert.

Service Alert 1346 Rev A: Incorrect Hold Turn

2 December 2013

AFFECTED PRODUCTS All Cirrus Perspective®, Embraer Prodigy™, G1000, G900X, and G950 systems with GDU Software Version 13.XX and all G2000, G3000, and G5000 products with GDU/GTC software versions up to and including software version 3.15 are affected by this alert. DESCRIPTION In some instances when flying a hold pattern, the autopilot may turn the wrong direction at the third crossing (and any subsequent crossing thereafter) of the hold waypoint. This … View complete alert.

Service Alert 1307 Rev B: Potential loss of PFD displayed heading and/or attitude for G1000 systems installed in King Air and Cessna Mustang Aircraft

2 December 2013

AFFECTED PRODUCTS King Air and Cessna Mustang aircraft with Garmin G1000 installations equipped with GRS 77 AHRS (Attitude Heading Reference System) may be affected. DESCRIPTION Garmin has received a very limited number of reports of a temporary loss of heading and attitude (provided by the AHRS) displayed in the products noted above. There are two possible causes. Moving the aircraft on the ground (e.g., towing operations) during the first 10second… View complete alert.

Service Alert 1232 Rev A: Altitude oscillations, diverging pitch oscillations, or deviations from the commanded flight path may occur

27 November 2013

AFFECTED PRODUCTS All Lancair Evolution Aircraft with GFC 700 installations are affected. PURPOSE While flying in turbulent conditions with the autopilot engaged, affected aircraft may experience pitch oscillations that can cause deviations from the desired flight path. PILOT ACTION REQUIRED If the aircraft deviates from the intended path, the pilot should disengage the autopilot and manually fly the aircraft to the intended path, then re-engage the… View complete alert.

Service Alert 1228 Rev A: SIDs and STARs non-JETs Limitation

27 November 2013

AFFECTED PRODUCTS All Garmin Integrated Flight Deck Systems, G500/G600, GPS 400W/GNC 420W/GNS 430W/GPS 500W/GNS 530W, andGTN 625/GTN 635/GTN 650/GTN 725/GTN 750 navigation systems are affected. PURPOSE In some cases, published Standard Instrument Departures (SIDs) and StandardTerminal Arrivals (STARs) contain specific instructions within the Departure RouteDescription or arrival procedures that differ according to aircraft type, such as “JETS” or“ALL OT… View complete alert.

Service Alert 1205 Rev A: GPS 500W TAWS, GNS 530W TAWS, and GNS 530AW TAWS Units with External TAWS Annunciators

26 November 2013

PRODUCTS AFFECTED All GPS 500W TAWS, GNS 530W TAWS, and GNS 530AW TAWS Units’ meeting both of the followingconditions: Main Software Version 3.30 (or earlier) Installed in an aircraft with an external TAWS annuniciator DESCRIPTION When TAWS is inhibited on the GPS 500W TAWS, GNS 530W TAWS or GNS 530AW TAWS Unit, theGPWS visual alerts (Excessive Descent Rate and Negative Climb Rate) are inhibited on the externalannunciator. Visual alerts and aural… View complete alert.

Service Alert 1202 Rev A: GTN 650/GTN 750 Units and OBS Issue

26 November 2013

DESCRIPTION Under certain conditions, affected GTN 650/750 units may incorrectly interpret the course selected by thepilot on some panel-mounted OBS (Omni Bearing Selector) units. This condition may cause the CDI(Course Deviation Indicator) associated with the OBS to display incorrect course deviation information for the selected course to or from a VOR. This issue only affects VOR course deviation displayed in certain installation configurations. Thefo… View complete alert.

Service Alert 1027 Rev B: Aircraft with Maximum Airspeed Limitations that Vary with Altitude

22 November 2013

AFFECTED PRODUCTS G500 and G600 Systems with Software Version 3.02 or earlier, that have a maximum airspeed limitation that varies with altitude. A list of known affected aircraft on the G500/600 AML is listed in Table 1 of this alert. Rev B of this alert lists additional aircraft (added models are highlighted in grey). DESCRIPTION Certain airplane models (see page two of this alert) on the G500/600 AML, require a maximum airspeed indication (“barber … View complete alert.

Service Alert 1001 Rev A: Standby Navigation Database

22 November 2013

AFFECTED PRODUCTS All Garmin G1000, G900X, Perspective™, and Prodigy™ Integrated Flight Decks with the standby Navigation Database option enabled and with GDU software versions 10.00 through 11.01 are affected. IMMEDIATE ACTION REQUIRED Only load navigation databases as an active navigation database. Do not load anavigation database as a standby navigation database. Whenever the “NAV DB UPDATED – Active navigation database updated.”message is displ… View complete alert.

Service Alert 0824 Rev C: GDU 1040, GDU 1042, GDU 1043, GDU 1044, and GDU 1044B CRS/BARO Knob Interference

22 November 2013

AFFECTED PRODUCTS All G1000/G900X/G950 installations with 10-inch GDU 1040, GDU 1042, GDU 1043, GDU 1044, and GDU 1044Bdisplays are affected. Download 0824RevCfor a list of affected serial numbers. The following G1000-equipped aircraft may include one or more of the affected GDU 104X displays listed above. Cessna 172R/172S/182T/T182T/206H/T206H Cessna 350/400 Columbia 350/400 Diamond DA40/40F/40D/DA42 Mooney M20M/M20R/M20TN Piper PA 32 Saratoga Quest … View complete alert.

Service Alert 0936 Rev B: Navigation error condition concerning terminal procedures with Direct-to-Fix (DF) legs

21 November 2013

AFFECTED PRODUCTS All GNS 400W/500W series with Main Software version 3.20 and all G900X, G950, G1000, Cirrus Perspective®, and Embraer Prodigy™ Systems with GDU Software versions 9.10 through 9.14 are affected. ISSUE Garmin has discovered an issue whereby the navigation system may provide incorrect CDI guidance andactive leg indication on the navigation map while flying a publishedterminal procedure. This condition can occur when the flight plan auto… View complete alert.

Service Alert 0816 Rev B: Forward Looking Terrain Avoidance (FLTA) Alert Over the Open Ocean/Sea

20 November 2013

AFFECTED PRODUCTS All TAWS-equipped G1000, G950, G900X, GPS 500W, and GNS 530W units are affected. Non-WAAS equipped GNS 500 Series units are not affected. DESCRIPTION Garmin has identified an issue concerning the Terrain Database, whereby TAWS-B Forward Looking Terrain Avoidance (FLTA) alerts are not available when flying over the open ocean/sea (specifically any body of water at sea level). TAWS-B functions properly in all other locations. Do not … View complete alert.

Service Alert 0811 Rev A: G1000/G900X/GPS 400W/GNC 420W/GNS 430W/GPS 500W/GNS 530W Flight Plan Sequencing Issue

20 November 2013

AFFECTED PRODUCTS All G1000/G900X WAAS and non-WAAS equipped aircraft with GDU software versions 7.00 to 9.01 and all GNS 400W/500W series units with main software versions prior to 3.20 are affected. IMMEDIATE ACTION REQUIRED Do not manually activate a procedure turn leg in a flight plan (labeled “PROC. TURN” or “proc. turn” on the flight plan page). Typical operation of these systems does not require manually activating a procedure turn leg. DESCRI… View complete alert.

Service Alert 0801 Rev A: Supplemental Data Cards Should Not Be Used To Load Jeppesen NavData

20 November 2013

AFFECTED PRODUCTS All G1000 Integrated Flight Deck systems. DESCRIPTION Some G1000 Pilot’s Guides suggest that Jeppesen NavData can be loaded onto Garmin supplemental data cards. Due to issues encountered with loading Jeppesen NavData database information onto Garmin 010-00330-41 or 010-00330-42 supplemental data cards, Garmin no longer recommends this procedure. Loading Jeppesen Chartview data onto these supplemental data cards remains acceptable. R… View complete alert.

Service Alert 080128-00: G1000/G900X Integrated Avionics Systems Interfaced To Non-Garmin Analog Autopilots

20 November 2013

Garmin has identified an issue where a G1000/G900X interfaced to a non-Garmin analog autopilot can incorrectly NAV-couple and/or remain NAV-coupled to a VOR signal that is flagged. This condition is limited to VOR tracking. GPS and LOC operation is not affected. RESOLUTION Monitor the VOR validity on the HSI while the non-Garmin analog autopilot is in NAV mode and coupled to a VOR. If the VOR becomes flagged, manually cancel autopilot NAV mode coupling.… View complete alert.

Service Alert 071016-00: Sandel SN3308 When Coupled With A Garmin GPS 400W, GNC 420W, GNS 430W, GPS 500W, or GNS 530W

20 November 2013

AFFECTED PRODUCTS All GNS 400W/500W products installed with a Sandel SN3308 EHSI ISSUE The Sandel model SN3308 EHSI has a feature called AUTO SLEW. When this feature is enabled and GPS is the selected navigation source, the SN3308 will automatically rotate the course pointer to the desired course sent by the 400W/500W Series unit. When the SN3308 is given a new course from the GPS, it slews to the new commanded course. When NAV (VLOC) is the selected n… View complete alert.

Service Alert 070801-01 Rev C: Aviation Product Alert

19 November 2013

AFFECTED PRODUCTS AND AIRCRAFTGarmin G900X Systems installed on any aircraft and Garmin G1000 Systems installed on the following aircraft with GDU 1XXX software versions prior to V8.20: Cessna 350/400 Piper PA32 Quest Kodiak 100 Hawker Beechcraft G36 Bonanza IMMEDIATE ACTION REQUIREDThe pilot should select and use NAUTICAL (NM and KTS) Distance and Speed units instead of selecting and using METRIC Distance and Speed units (KM and KPH). DESCRIPTIO… View complete alert.

Service Alert 070424-00: Aviation Product Alert

19 November 2013

AFFECTED PRODUCTS All GWX 68 Weather Radar installations DESCRIPTION OF ISSUE Garmin has identified a condition whereby the GWX 68 weather radar provides underestimated storm intensity display data. IMMEDIATE ACTION REQUIRED For the GWX 68 to optimally display weather targets at ranges of less than 32 nm on MX20 and GMX 200, the gain must be manually increased to the maximum setting; on G1000, the gain must be manually increased by turning the small … View complete alert.

Service Alert 070227-00: Aerial Navigation Product Alert

19 November 2013

AFFECTED PRODUCTS All G1000 Series units with GDU software Version 2.02 through 7.01. All GNS 400W and 500W Series units with Main Software Version 2.00. DESCRIPTION OF ISSUE Garmin has identified a condition whereby failing to remove an active arrival or departure prior to loading a new arrival or departure can cause erroneous course deviation indications and a loss of some navigation cues on the map display. IMMEDIATE ACTION REQUIRED Garmin has dete… View complete alert.

Service Alert 050523-02: GPS 500/GNS 530 TAWS Navigation Alert

18 November 2013

STATEMENT OF REVISION FOR -02 Data required to completely define the affected ILS approaches has been incorporated into the Jeppesen Navigation Database. As such, this alert does not apply when using Jeppesen Data cycle 0506 or later. This alert supersedes all previous versions of Service Alert 050523. AFFECTED PRODUCTS Garmin 500 series TAWS units with Jeppesen Data cycle 0505 and prior IMMEDIATE ACTION REQUIRED The pilot should inhibit TAWS when fl… View complete alert.

Service Alert 050721-00 Rev A: Direct-To Waypoint Selection

18 November 2013

AFFECTED PRODUCTS GNS 430/GNC 420/GPS 400 Main S/W versions 2.08 through 5.00 All GNS 530/GPS 500 Main S/W versions through 6.00 All G1000 GDU S/W versions through 5.00 ISSUE In certain limited circumstances, conflicting navigation information can be providedwhen a selected ‘Direct-to’ waypoint is also a waypoint in a loaded terminal/approachprocedure. IMMEDIATE ACTION REQUIRED This issue concerns only ‘Direct-to’ navigation to a waypoint that i… View complete alert.

Service Alert 050606-00 Rev A: G1000 Series Navigation Alert

18 November 2013

AFFECTED PRODUCTS All G1000 Series units with Terrain Database Version 2.01 DESCRIPTION OF ISSUE Garmin has identified a condition in Version 2.01 of the G1000 Series TerrainDatabase that can result in incorrectly depicted topography in parts of Canada andMexico. This issue is a result of the terrain database representing terrain elevationshigher than the actual elevations in portions of the indicated regions. The affectedregions of Canada and Mexico ar… View complete alert.

Service Alert 050602-00 Rev A: 500 Series TAWS Navigation Alert

18 November 2013

AFFECTED PRODUCTS GPS 500 TAWS, GNS 530 TAWS, and GNS 530A TAWS units withTerrain Database Version 2.01 DESCRIPTION OF ISSUE Garmin has identified a condition in Version 2.01 of the Terrain Database that canresult in nuisance terrain alerts in parts of Canada and Mexico in the 500 SeriesTAWS products. The potential nuisance terrain alerts are associated with the TAWSFLTA (Forward Looking Terrain Avoidance) and PDA (Premature Decent Alert)alerting functi… View complete alert.

G1000 OBS Service Alert

18 November 2013

Owners and operators of aircraft equipped with G1000 systems should not use the OBS mode untilGDU 1040 software version 4.01 or higher software is installed. This Service Alert is based onpotential inconsistent operation of the G1000 OBS mode of operation. In limited circumstances the G1000 may not properly reset the course pointer in OBS mode usage.If this occurs, course deviation indicated is correct, although the “picture” on the HSI presented tothe pi… View complete alert.