Cirrus SR22T Maintenance Manual

C I R R U S
A I R P L A N E M A I N T E N A N C E M A N U A L
1. DESCRIPTION
A. Emergency Locator Transmitter (ELT)
This airplane is equipped with a self-contained ELT. The ELT transmitter is installed immediately
behind the aft cabin bulkhead. The ELT is mounted slightly to the right of the airplane centerline. The
transmitter and antenna are accessible through an access panel at the base of the baggage compart-
ment bulkhead. ELT models available on the airplane include the ACK E-01 ELT, the Artex ME406 ELT,
and the Artex ELT 1000.
Serials 22-0002 thru 22-3827, Serials 22T-0001 thru 22T-0267 w/ ACK E-01 ELT: The transmitter unit
is mounted longitudinally in the airplane. If rapid deceleration is detected, the transmitter will repeat-
edly transmit VHF band audio sweeps at 121.5 Mhz and 243.0 Mhz approximately 0.5 seconds apart.
The transmitter can be removed from the airplane and used as a personal locating device if it is neces-
sary to leave the airplane after an accident.
The main transmitter control switch is labeled ON-OFF-ARMED. The transmitter is in the armed posi-
tion for normal operations. Eight dated "D" cell alkaline batteries contained within the transmitter unit
provide power to the transmitter. Replace all ELT batteries at the same time and with the same expira-
tion date stamp. The expiration date of the batteries must be indicated on the outside of the ELT bat-
tery case and recorded in the aircraft logs.
The ELT Remote Switch and Control Panel Indicator (RCPI) is located below the circuit breakers on
the circuit breaker panel. The RCPI provides test and monitoring functions for the transmitter. The
panel contains a button labeled ON, a button labeled RESET, and a red LED indicator light. The ON
button is used to test the unit in accordance with the manufacturer's approved Instructions For Contin-
ued Airworthiness. The RESET button can be used to cancel an inadvertent transmission. The red
light flashes when the ELT is transmitting. A Duracell PX28L or Kodak K28L 6-volt lithium battery
mounted in the panel powers the LED.
WARNING: The ACK E-01 ELT is designed to use only Duracell MN1300 or PC 1300 alkaline
batteries which are dated by the manufacturer. This ELT does not meet the
requirements of TSO-91a or 14 CFR 91.207 if used with any other type of battery.
ELT and RCPI batteries must be inspected in accordance with the requirements of
the replacement schedule in Chapter 5. The ELT and RCPI batteries must be
replaced upon reaching the date stamped on the batteries or whenever the batter-
ies have been in use for one cumulative hour.
For additional information on the ACK ELT, refer to the Model E-01 ELT Installation and Operation Man-
ual. (Refer to 05-10)
Serials w/ Artex ME406 ELT: The transmitter unit is mounted longitudinally in the airplane in order to
detect deceleration greater than 2.3 g. If rapid deceleration is detected, the transmitter will repeatedly
transmit VHF band audio sweeps at 121.5 Mhz until battery power is gone. In addition, for the first 24
hours of operation, a 406 MHz signal is transmitted at 50-second intervals. This transmission lasts 440
ms and contains identification data programmed into the beacon and is received by Cospas-Sarsat
satellites. The transmitted data is referenced in a database (maintained by the national authority
responsible for ELT registration) and used to identify the beacon and owner. The transmitter can be
removed from the airplane and used as a personal locating device if it is necessary to leave the air-
plane after an accident.
EFFECTIVITY:
All
EMERGENCY
M O D E L S S R 2 2 A N D S R 2 2 T
25-60
Page 1
15 Dec 2014