Piper ARCHER III - Page 363

SECTION 9
PA-28-181, ARCHER III SUPPLEMENT 23
ISSUED: JULY 12, 1995 REPORT: VB-1611
REVISED: FEBRUARY 14, 2006 9 of 36, 9-161
SECTION 3 - EMERGENCY PROCEDURES (continued)
Loss of PFD Engine Data
Indication: Indicator needle removed from dial and digital readout
replaced with white dashes.
Engine Instruments................................................Refer to Engine page of MFD
Land as soon as practical.
Invalid Air Data
Indication: Airspeed, Altimeter, and Vertical Speed data replaced with
Red X’s.
Maintain aircraft airspeed and altitude by referring to the standby airspeed and
altimeter.
If time and conditions permit:
PFD Circuit Breaker................................................................PULL and RESET
If air data is still invalid:
Refer to standby airspeed indicator and altimeter.
Land as soon as practical.
Invalid Heading Data
Indication: Heading Bug and Heading Data removed and replaced with
Red X’s.
If time and conditions permit:
PFD Circuit Breaker ..............................................................PULL and RESET
Maintain heading control using magnetic compass and other directional indications
(such as MFD, MAP/NAV page).
CAUTION
High current loads in the vicinity of the magnetic compass
can influence its accuracy. Depending on the flight conditions,
the pilot must reduce these loads as much as possible to
insure accuracy. Tests have shown that air conditioner and
pitot heat contribute to significant heading errors of the
magnetic compass. These items should be turned OFF prior
to comparing magnetic compass headings.
Land as soon as practical.
SECTION 9
PA-28-181, ARCHER III SUPPLEMENT 23
ISSUED: JULY 12, 1995 REPORT: VB-1611
REVISED: FEBRUARY 14, 2006 9 of 36, 9-161
SECTION 3 - EMERGENCY PROCEDURES (continued)
Loss of PFD Engine Data
Indication: Indicator needle removed from dial and digital readout
replaced with white dashes.
Engine Instruments................................................Refer to Engine page of MFD
Land as soon as practical.
Invalid Air Data
Indication: Airspeed, Altimeter, and Vertical Speed data replaced with
Red X’s.
Maintain aircraft airspeed and altitude by referring to the standby airspeed and
altimeter.
If time and conditions permit:
PFD Circuit Breaker................................................................PULL and RESET
If air data is still invalid:
Refer to standby airspeed indicator and altimeter.
Land as soon as practical.
Invalid Heading Data
Indication: Heading Bug and Heading Data removed and replaced with
Red X’s.
If time and conditions permit:
PFD Circuit Breaker ..............................................................PULL and RESET
Maintain heading control using magnetic compass and other directional indications
(such as MFD, MAP/NAV page).
CAUTION
High current loads in the vicinity of the magnetic compass
can influence its accuracy. Depending on the flight conditions,
the pilot must reduce these loads as much as possible to
insure accuracy. Tests have shown that air conditioner and
pitot heat contribute to significant heading errors of the
magnetic compass. These items should be turned OFF prior
to comparing magnetic compass headings.
Land as soon as practical.