Aquila AT01-100 User manual

POH / AFM
AQUILA AT01-100/200 POH-Supplement
AS-18
Document Nr.: Issue: supersedes Issue: Date: Page:
FM-AT01-1010-257 A.02A.01 (15.10.2013) 02.03.2020 AS-18-1
SECTION 9
Pilot's Operating Handbook Supplement AS-18
GARMIN GNC 255A / 255B (COM/NAV)
This supplement is applicable and must be inserted into Section 9 of the POH when the
Garmin GNC 255A or 255B COM/NAV is installed in the AQUILA AT01-100/200. The
information in this supplement adds to or replaces information in the basic POH.
Revision A.02 of AFM Supplement AS-18 ref. FM-AT01-1010-257 is approved under the authority
of DOA ref. EASA.21J.025.

POH / AFM
AQUILA AT01-100/200 POH-Supplement
AS-18
Document Nr.: Issue: supersedes Issue: Date: Page:
FM-AT01-1010-257 A.02 A.01 (15.10.2013) 02.03.2020 AS-18-2
0.1 RECORD OF REVISIONS
Issue Reason for Change Effected Pages Date of Issue
A.01 Initial Issue All 15.10.2013
A.02 also valid for AT01-200 All 02.03.2020
0.2 LIST OF CURRENT PAGES
Page Issue Date Page Issue Date
1 - 6 A.02 02.03.2020
0.3 TABLE OF CONTENTS
1. GENERAL...............................................................................................................3
2. OPERATING LIMITATIONS...................................................................................4
3. EMERGENCY PROCEDURES...............................................................................5
4. NORMAL PROCEDURES ......................................................................................5
5. PERFORMANCE....................................................................................................5
6. WEIGHT AND BALANCE.......................................................................................6
7. SYSTEM DESCRIPTION........................................................................................6
8. HANDLING, SERVICE AND MAINTENANCE .......................................................6

POH / AFM
AQUILA AT01-100/200 POH-Supplement
AS-18
Document Nr.: Issue: supersedes Issue: Date: Page:
FM-AT01-1010-257 A.01 - 15.10.2013 AS-18-3
1. GENERAL
The Garmin GNC 255A/255B combines a VHF communications transceiver with 200
channel VOR, Localizer and Glideslope receivers. Besides traditional Nav/Com
features, the GNC 255 also incorporates workload-reducing functions such as automatic
decoding of the Morse code station identifier for VOR/LOC, most-used frequency
storage in memory and more.
The GNC 255A/255B has the ability to monitor the standby COM frequencies. The GNC
255’s Com radio operates in the aviation voice band, from 118.000 to 136.975 MHz, in
25 kHz steps (default). For European operations, a Com radio configuration of 8.33 kHz
steps is also available. The GNC 255 VHF Nav receiver operates from 108 MHz to
117.95 MHz decoding both the VHF Omni Range and Localizer navigation signals. The
built-in Glideslope receiver will automatically tune the corresponding glideslope paired
frequencies (328 MHz to 335 MHz) when the localizer is tuned. The GNC 255A is
available with a 10 watt com transmitter. The GNC 255B is available with a 16 watt com
transmitter.
GNC 255A / 255B Front Panel:
Photo
Sensor
Frequency Transfer
(FLIP/FLOP) Key
USB
Port
LARGE and
SMALL Knobs
(Frequency
Adjust)
Power On/Off,
Com Volume,
Squelch On/Off
Nav (VLOC)
Volume, Nav ID
On/Off
Frequency
Monitor Key
Com or Nav
Frequency Selection
OBS
Selection
To/From
Selection
Function
Selection
Clear Data
Key
Enter Key

POH / AFM
AQUILA AT01-100/200 POH-Supplement
AS-18
Document Nr.: Issue: supersedes Issue: Date: Page:
FM-AT01-1010-257 A.01 - 15.10.2013 AS-18-4
2. LIMITATIONS
The information contained in this supplement must be used in conjunction with the basic
POH.
Pilot´s Guide
The Garmin GNC 255A / 255B Pilot´s Guide, p/n 190-01182-01, Rev. A (or later
revisions), must be immediately available to the flight crew.
WARNING
For safety reasons, GNC 255´s operational procedures must be learned on the ground.
NOTE
The Garmin GNC 255A / 255B must be switched off during engine start-up and shut-
down. Non-compliance could destroy the equipment. All warranty and guarantee claims
will become void!
NOTE
Do not use outdated database information. Databases used in the system must be
updated regularly in order to ensure that the information remains current. Pilots using an
outdated database do so entirely at their own risk.
NOTE
Transmit Duty Cycle: 10W: 100%
16W: Recommended 25% (5 seconds on/15 seconds off,
15 seconds on/45 seconds off, etc.)

POH / AFM
AQUILA AT01-100/200 POH-Supplement
AS-18
Document Nr.: Issue: supersedes Issue: Date: Page:
FM-AT01-1010-257 A.01 - 15.10.2013 AS-18-5
3. EMERGENCY PROCEDURES
LOSS OF COM RADIO TUNING FUNCTIONS
•If alternate COM is available:
Communications USE ALTERNATE COM
•If no alternate COM is available:
FLIP/FLOP key PRESS AND HOLD FOR 2 SECONDS
NOTE
This procedure will tune the COM radio to the
emergency frequency 121.5. Certain failures of the tuning system
will automatically tune 121.5, regardless of what frequency is
displayed on the GNC, without flight crew action.
NOTE
The GNC 255 helps protect you from a situation where the microphone may get stuck
in the ON or Transmit position. If the microphone is keyed for longer than 35 seconds,
the GNC 255 will return to the receive mode on the selected frequency.
A “Stuck Mic” message will display until the transmit key is released. Alerts will
display until the error clears or the user acknowledges it.
LOSS OF NAVIGATION FUNCTIONS
Use alternative Navigation
4. NORMAL PROCEDURES
Refer to the Pilot´s Guide defined in Section 2 of this document for normal operating
procedures and a complete list of system messages and associated flight crew actions.
5. PERFORMANCE
No change to the basic POH.

POH / AFM
AQUILA AT01-100/200 POH-Supplement
AS-18
Document Nr.: Issue: supersedes Issue: Date: Page:
FM-AT01-1010-257 A.01 - 15.10.2013 AS-18-6
6. WEIGHT AND BALANCE
Changes to Weight and Balance due to Installation/Removal of the GNC 255A/255B
must be considered in accordance with chapter 6 of the Basic POH.
7. SYSTEM DESCRIPTION
Pilot’s Guide
The Garmin GNC 255A / 255B Pilot´s Guide, defined in Section 2 of this document,
contains information regarding GNC system description, control and function. This
Pilot’s Guide must be immediately available to the flight crew.
Power
Power to the Garmin GNC 255A / 255B is provided through a circuit breaker labeled
COM 1 or COM 2. Power to the NAV Unit is provided through a circuit breaker labeled
NAV/GPS 1 or NAV/GPS 2.
Database
Instructions for updating the Frequency Database can be found in the Garmin GNC
255A / 255B Pilot´s Guide, defined in Section 2 of this document.
8. HANDLING, SERVICE AND MAINTENANCE
CAUTION
The Garmin GNC 255A/255B must be switched off during engine start-up and shut-
down. Otherwise it could be seriously damaged or destroyed. All warranty and
guarantee claims will become void!
CAUTION
The GNC 255´s display uses a lens coated with a special anti-reflective coating that is
very sensitive to skin oils, waxes, and abrasive cleaners. CLEANERS CONTAINING
AMMONIA WILL HARM THE ANTI-REFLECTIVE COATING. It is very important to
clean the lens using a clean, lint-free cloth and an eyeglass lens cleaner that is
specified as safe for anti-reflective coatings.
MALFUNCTION OF THE GNC 255A / 255B:
The Garmin GNC 255 does not contain any user-serviceable parts. Repairs should only
be made by an authorized Garmin service center. Unauthorized repairs or modifications
could void both the warranty and the pilot’s authority to operate this device under local
authority regulations.