Rotorcraft Flight Manual Supplement

RFMS, Eurocopter AS350B2, B3 G500H System 190-00792-13 Rev 1
FAA APPROVED Page 17 of 25
SECTION 3. EMERGENCY PROCEDURES
3.1 Loss of Electrical Power
In th e event of a total loss of electrical power, the G500H system will cease to
operate and the pilot must utilize the standby instruments and visual references
to fly the aircraft
3.2 Malfunction Indications and Procedures
These procedures supersede those presented as markings or placards, or
documented in the aircraft’s FAA approved Rotorcraft Flight Manual as a result
of the installation of the G500H system. All other emergency procedures remain
in effect.
Primary Flight Display
If primary flight information (Heading, Altitude or Airspeed) on the PFD is not
available or appears invalid, utilize the standby instruments installed as required.
AHRS Failure
A failure of the Attitude and Heading Reference System (AHRS) is indicated by
a removal of the sky/ground presentation, a red X over the attitude indicator, and
a yellow “AHRS FAILURE” shown on the PFD. A heading failure will also be
indicated.
1. Use visual references for aircraft control
2. Set course datum using CRS selection of the PFD knob
The Attitude, Heading and Reference System (AHRS) requires at least one GPS
or air data input to function properly. In the unlikely event that GPS data and air
data is not received by the AHRS, the system will not provide Attitude,
Heading, Altitude, or Airspeed information; however, if the PFD is receiving
valid GPS information, the reversionary data on the PFD provides GPS Track
and GPS Altitude data along with course information and deviations which are
still valid and may be used to navigate.
Heading Failure
A magnetometer failure is indicated by a HDG with a red X over it just to the
left of the heading display. If the GDU 620 is still receiving valid GPS ground
track from the GNS navigator, the heading will be replaced with GPS ground
track in magenta. The aircraft can be flown by reference to GPS ground track
instead of heading.