Piper ARCHER III Pilot Operating Handbook page 337

PA-28-181, ARCHER III
SECTION 7 - DESCRIPTION AND OPERATION (continued)
A. PFD Systems Description (continued)
Back-up Instruments
The Entegra PFD system installation includes redundant means of display of
certain aircraft flight and systems parameters. Back-up Altimeter, Airspeed
and Attitude instruments are provided to facilitate pilot cross-checking of
PFD display flight parameters. The aircraft wet compass serves as a back-up
heading source.
THIS SPACE INTENTIONALLY LEFT BLANK
ISSUED: JULY 12, 1995
REVISED: JANUARY 9, 2006
SECTION 9
SUPPLEMENT 20
REPORT: VB-1611
27 of 30, 9-135