When tail de-ice is required, push and hold TAIL de-ice button in for 2. minutes.
* * * *
Sec. 3 Page 100 MD-80
Rev. 05/15/95 #23 Continental Flight Manual
TAIL DE-ICE ON LIGHT ON CONTINUOUSLY
WING & TAIL VALVES C/B (M-24).............................PULL OPEN
Note: Opening this circuit breaker will cause the wing anti-ice valve
to open and the tail anti-ice valve to close.
IF AIRFOIL ICE PROT PRESS ABNORMAL Light Comes On:
OR When tail de-ice is required, reset WING & TAIL VALVES C/B for 2.5 minutes. Observe AIRFOIL ICE PROT PRESS ABNORMAL light goes off. After 2.5 minutes, pull C/B. Repeat as required.
* * * *
IF AIRFOIL ICE PROT PRESS ABNORMAL Light Remains Off:
AIR FOIL Anti-Ice Switch(es) ................................................ OFF
PNEU X-FEED VALVE Levers.........................................CLOSE
Avoid icing areas. If unable to avoid icing areas, refer to AIRFOIL ICE PROTECTION INOPERATIVE, this section.
* * * *
MD-80 Sec. 3 Page 101
Flight Manual Continental Rev. 05/15/95 #23
WINDSHIELD CRACKED OR HEAT INOPERATIVE
IF Windshield is Cracked:
IF Outer Glass (Pane) is Cracked:
Pull respective WINDSHIELD ANTI-ICE C/B: Left X-24 / Center X-25 / Right Z-24
OR
Limit airspeed below 10,000 feet to 315 KIAS.
* * * *
IF Inner Glass (Pane) is Cracked:
OR
If applicable, pull respective WINDSHIELD ANTI-ICE C/B:
Left X-24 / Center X-25 / Right Z-24
Pull respective ANTI-FOG C/B:
Capt F/O & Ctr X-26 / Clearview & Eyebrow Z-26
Limit airspeed below 10,000 feet to 235 KIAS.
* * * *
IF Windshield Is Not Cracked:
Note: Ice buildup at the edges of windshields is not a positive indication of inoperative windshield heat. The left and right windshields consist of primary and secondary de-ice areas. Under severe icing conditions, the secondary de-ice area may not completely de-ice. Due to the geometry of these windshields, the heat flow to the secondary de-ice area is not adequate to remove the ice.
WINDSHIELD ANTI-ICE & ANTI-FOG C/B’S ....................................RESET IF TRIPPED
Anti-Ice: X-24, X-25, Z-24 / Anti-Fog: X-26, Z-26
IF Windshield Anti-Ice Is Inoperative:
Limit speed below 10,000 feet to 315 KIAS.
* * * *
Sec. 3 Page 102 MD-80
Rev. 05/15/95 #23 Continental Flight Manual
WING ANTI-ICE ON LIGHT IS OFF WITH
AIR FOIL ANTI-ICE SWITCH(ES) ON
AIRFOIL ADVISORY & PRESSURE ABNORMAL CAUTION C/B (M-21)................RESET IF TRIPPED
PNEU X-FEED VALVE Levers ...............................................CLOSE
IF AIRFOIL ICE PROT PRESS ABNORMAL Light Remains Off:
Confirms inoperative anti-ice system. Avoid icing areas.
AIR FOIL Anti-Ice Switch(es) ................................................ OFF
OR If unable to avoid icing areas, refer to AIRFOIL ICE PROTECTION
INOPERATIVE, this section.
* * * *
IF AIRFOIL ICE PROT PRESS ABNORMAL Light Comes On:
PNEU X-FEED VALVE Levers........................................... OPEN
- - - - - AFTER ONE MINUTE - - - - -
IF AIRFOIL ICE PROT PRESS ABNORMAL Light Remains On:
AIR FOIL Anti-Ice Switch(es) ......................................... OFF
PNEU X-FEED VALVE Levers..................................CLOSE
OR Avoid icing areas. If unable to avoid icing areas, refer to
AIRFOIL ICE PROTECTION INOPERATIVE, this section.
* * * *
IF AIRFOIL ICE PROT PRESS ABNORMAL Light Is Off:
Confirms WING ANTI-ICE ON light circuit malfunction. Continue
normal operation.
* * * *
MD-80 Sec. 3 Page 102-A
Flight Manual Continental Rev. 01/01/00 #28
WING HTR INOP LIGHT ON
Circuit Breaker H-26 UPPER WING ANTI-ICE............................PULL
This will remove all power to the Upper Wing Anti-Ice system, allowing the system to reset when repowered.
- - - - - AFTER TWO MINUTES - - - - -
Circuit Breaker H-26 UPPER WING ANTI-ICE......................... RESET
- - - - - AFTER TWO MINUTES - - - - -
IF WING HTR INOP Light Is ON:
Circuit Breaker H-26 UPPER WING ANTI-ICE.....................PULL
The system is inoperative.
* * * *
Sec. 3 Page 102-B MD-80
Rev. 01/01/00 #28 Continental Flight Manual
INTENTIONALLY LEFT BLANK
MD-80 Sec. 3 Page 103
Flight Manual Continental Rev. 08/01/98 #27
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