21 AIR CONDITIONING (Continued)
4. Windshield Anti-Ice Flow Control and Shutoff (Continued)
5. Cabin Differential Pressure Gauge
8. Place placard stating, “WINDSHIELD ANTI-ICE INOP” adjacent to the Windshield Bleed Air switch.
9. Make appropriate entry on the discrepancy report.
10. Flight will be conducted at or below FL410.
CAUTION: LIMIT GROUND OPERATION OF THE
WINDSHIELD BLEED AIR SYSTEM TO FIVE
SECONDS.
(O) May be inoperative provided:
a) Flight is conducted unpressurized:
1) CABIN PRESS MODE switches set AUTO,
2) Set Cabin Altitude 14,500 feet using "FL/CA"
button and ALT SET knob.
b) Flight can be and is conducted at or below
10,000 feet MSL, and
c) Cabin pressurization air source selector switch remains in FRESH AIR (If ventilation is required or to evacuate smoke) or OFF otherwise.
NOTE: Red Cabin ALT will illuminate when cabin altitude
1. Make appropriate entry on the discrepancy report.
2. Place a placard stating, “Select FRESH AIR or OFF only – Cabin Differential Pressure Gauge INOP” above the Air Source Select switch.
3. Prior to flight, Flight crew will review route of flight using appropriate current enroute charts, approach plates, or databases to ensure that no Minimum Enroute or Minimum Reception Altitude along route of flight exceeds 10,000 MSL.
4. Flight will be planned and filed at or above all MEA’s
b) Cabin pressurization auto schedule is operating
normally.
OPERATIONAL PROCEDURES 1. Verify upon turning the aircraft battery switch to ON, the absence of a red fault light and normal display indications exist on the Pressurization Controller.
NOTE: The absence of the red fault light and the
presence of normal controller display
indications verify the controller auto schedule
is operational.
2. Using AFM Procedures, start at least one of the engines.
3. If necessary, move the airplane to a suitable run-up area.
4. Increase throttle(s) to approximately 60% N1.
5. Press and hold the EXER button on the face of the pressurization controller for approximately two minutes. The cabin should gradually pressurize to 200 feet below field elevation.
6. Release the EXER button. The cabin should gradually depressurize, and the controller will conduct a display test. Display should return to normal indications, with no error code displayed.
7. Place placard adjacent to the Cabin Pressure Differential Gauge stating, “Cabin Diff Press Gauge INOP.”
8. Make appropriate entry on the discrepancy report.
SYSTEM & SEQUENCE NUMBERS
REMARKS OR EXCEPTIONS
21 AIR CONDITIONING (Continued)
6. Cabin Altitude Warning System
7. Cabin Altimeter
(O) May be inoperative provided:
a) Flight is conducted unpressurized:
1) CABIN PRESS MODE switches set AUTO,
2) Set Cabin Altitude 14,500 feet using "FL/CA"
button and ALT SET knob.
b) Flight can be and is conducted at or below 10,000
feet MSL, and
c) Cabin pressurization air source selector switch remains in FRESH AIR ( If ventilation is required or to evacuate smoke) or OFF otherwise.
NOTE: Red Cabin ALT will illuminate when cabin altitude
exceeds 9,500 feet (+/-400 feet) in the normal
mode or if cabin altitude greater than 14,500 feet
(+/-400 feet) with the cabin pressurization
controller in the high altitude mode.
OPERATIONAL PROCEDURES 1. Make appropriate entry on the discrepancy report.
2. Place a placard stating, “Select FRESH AIR or OFF only – Cabin Altitude Warning System INOP” above the Air Source Select switch.
3. Prior to flight, Flight crew will review route of flight using appropriate current enroute charts, approach plates, or databases to ensure that no Minimum Enroute or Minimum Reception Altitude along route of flight exceeds 10,000 MSL.
4. Flight will be planned and filed at or above all MEA’s
and MRA’s, and no higher than 10,000 feet MSL.
(O) May be inoperative provided:
a) Flight is conducted unpressurized:
1) CABIN PRESS MODE switches set AUTO,
2) Set Cabin Altitude 14,500 feet using "FL/CA"
button and ALT SET knob.
b) Flight can be and is conducted at or below 10,000 feet MSL, and
c) Cabin pressurization air source selector switch remains in FRESH AIR ( If ventilation is required or to evacuate smoke) or OFF otherwise.
NOTE: Red Cabin ALT will illuminate when cabin altitude
exceeds 9,500 feet (+/-400 feet) in the normal
mode or if cabin altitude greater than 14,500 feet
(+/-400 feet) with the cabin pressurization
controller in the high altitude mode.
OPERATIONAL PROCEDURES 1. Make appropriate entry on the discrepancy report.
2. Place a placard stating, “Select FRESH AIR or OFF only – Cabin Altimeter INOP” above the Air Source Select switch.
(Continued)
SYSTEM & SEQUENCE NUMBERS
REMARKS OR EXCEPTIONS
21 AIR CONDITIONING (Continued)
7. Cabin Altimeter (continued)
8. Automatic Cabin Air Temperature
3. Prior to flight, Flight crew will review route of flight using appropriate current enroute charts, approach plates, or databases to ensure that no Minimum Enroute or Minimum Reception Altitude along route of flight exceeds 10,000 MSL.
4. Flight will be planned and filed at or above all MEA’s
and MRA’s, and no higher than 10,000 feet MSL.
(O) May be inoperative provided:
a) Flight is conducted unpressurized:
1) CABIN PRESS MODE switches set AUTO,
2) Set Cabin Altitude 14,500 feet using "FL/CA"
button and ALT SET knob.
b) Flight can be and is conducted at or below 10,000
NOTE: Red Cabin ALT will illuminate when cabin altitude
exceeds 9,500 feet (+/-400 feet) in the normal
mode or if cabin altitude greater than 14,500 feet
(+/-400 feet) with the cabin pressurization
controller in the high altitude mode.
OPERATIONAL PROCEDURES
NOTE: Alternate MEL relief exists with no
requirement for procedure, provided Manual
Temp Control is operational. i.e., Flight can
be conducted using Manual Temp Control, or
by using the following procedure.
1. Make appropriate entry on the discrepancy report.
2. Place a placard stating, “Select FRESH AIR or OFF only – Auto Temp Control INOP” on the Tilt Panel.
3. Prior to flight, Flight crew will review route of flight using appropriate current enroute charts, approach plates, or databases to ensure that no Minimum Enroute or Minimum Reception Altitude along route of flight exceeds 10,000 MSL.
4. Flight will be planned and filed at or above all MEA’s and MRA’s, and no higher than 10,000 feet MSL.
SYSTEM & SEQUENCE NUMBERS
REMARKS OR EXCEPTIONS
21 AIR CONDITIONING (Continued)
9. Manual Cabin Air Temperature Control System (Continued)
10. Cabin Door Primary Seal
(O) May be inoperative provided:
a) Flight is conducted unpressurized:
1) CABIN PRESS MODE switches set AUTO,
2) Set Cabin Altitude 14,500 feet using "FL/CA"
button and ALT SET knob.
b) Flight can be and is conducted at or below 10,000
feet MSL, and
c) Cabin pressurization air source selector switch
or to evacuate smoke) or OFF otherwise.
NOTE: Red Cabin ALT will illuminate when cabin altitude
exceeds 9,500 feet (+/-400 feet) in the normal
mode or if cabin altitude greater than 14,500 feet
(+/-400 feet) with the cabin pressurization
controller in the high altitude mode.
OPERATIONAL PROCEDURES
NOTE: Alternate MEL relief exists with no
requirement for procedure, provided Manual
Temp Control is operational. i.e., Flight can
be conducted using Manual Temp Control, or
by using the following procedure.
1. Make appropriate entry on the discrepancy report.
2. Place a placard stating, “Select FRESH AIR or OFF only – Manual Temp Control INOP” on the Tilt Panel.
3. Prior to flight, Flight crew will review route of flight using appropriate current enroute charts, approach plates, or databases to ensure that no Minimum Enroute or Minimum Reception Altitude along route of flight exceeds 10,000 MSL.
4. Flight will be planned and filed at or above all MEA’s
and MRA’s, and no higher than 10,000 feet MSL.
(M)(O) One may be inoperative provided:
a) Service Air System is operating normally,
b) Any leak of the service air is stopped.
c) Flight is conducted unpressurized:
1) CABIN PRESS MODE switches set AUTO,
2) Set Cabin Altitude 14,500 feet using “FL/CA” button and ALT SET knob.
d) Flight can be and is conducted at or below 10,000 feet MSL, and
e) Cabin pressurization air source selector switch
remains in FRESH AIR (If ventilation is required or
to evacuate smoke) or OFF otherwise.
NOTE: Red Cabin ALT will illuminate when cabin altitude
exceeds 9,500 feet (+/-400 feet) in the normal
mode or if cabin altitude greater than 14,500 feet
(+/-400 feet) with the cabin pressurization
controller in the high altitude mode.
(Continued)
SYSTEM & SEQUENCE NUMBERS
REMARKS OR EXCEPTIONS
21 AIR CONDITIONING (Continued)
10. Cabin Door Primary Seal (Continued)
11. Cabin Door Secondary Seal
f) Crew and passengers comply with any applicable
oxygen requirements.
OPERATIONAL PROCEDURES 1. Make appropriate entry on the discrepancy report.
2. Place a placard stating, “Select FRESH AIR or OFF only – Cabin Door Primary Seal INOP” on the Tilt Panel.
3. Prior to flight, Flight crew will review route of flight using appropriate current enroute charts, approach plates, or databases to ensure that no Minimum Enroute or Minimum Reception Altitude along route of flight exceeds 10,000 MSL.
4. Flight will be planned and filed at or above all MEA’s and MRA’s, and no higher than 10,000 feet MSL.
5. Prior to each flight, crew member will check condition of the cap installed in the following Maintenance Procedure.
MAINTENANCE PROCEDURES 1. Identify service air nipple protruding from the cabin door hinge area immediately forward of cabin door opening.
2. Clean any lubricate that may be present in the service air nipple area.
3. Using vinyl tape (preferably red), apply 2-3 layers of tape over the service air nipple opening and surrounding area.
4. Ensure tape completely blocks off the service air nipple port opening, and is secure.
5. Install placard adjacent to cabin door hinge nipple, stating, “PRIMARY DOOR SEAL INOP & DISABLED”.
(O) May be inoperative provided:
a) The flight is conducted unpressurized:
1) CABIN PRESS MODE switches set AUTO,
2) Set Cabin Altitude 14,500 feet using "FL/CA" button and ALT SET knob.
b) Flight can be and is conducted at or below 10,000
feet MSL, and
c) Cabin pressurization air source selector switch
remains in FRESH AIR ( If ventilation is required or
to evacuate smoke) or OFF otherwise.
NOTE: Red Cabin ALT will illuminate when cabin altitude
exceeds 9,500 feet (+/-400 feet) in the normal
mode or if cabin altitude greater than 14,500 feet
(+/-400 feet) with the cabin pressurization
controller in the high altitude mode.
(Continued)
SYSTEM & SEQUENCE NUMBERS
REMARKS OR EXCEPTIONS
21 AIR CONDITIONING (Continued)
11. Cabin Door Secondary Seal (Continued)
OPERATIONAL PROCEDURES NOTE: Consider using alternate MEL relief if Primary
Door Seal is operative.
1. Make appropriate entry on the discrepancy report.
2. Place a placard stating, “Select FRESH AIR or OFF only – Cabin Door Secondary Seal INOP” on the Tilt Panel.
3. Prior to flight, Flight crew will review route of flight using appropriate current enroute charts, approach plates, or databases to ensure that no Minimum Enroute or Minimum Reception Altitude along route of flight exceeds 10,000 MSL.
4. Flight will be planned and filed at or above all MEA’s
and MRA’s, and no higher than 10,000 feet MSL.
(O) May be inoperative provided:
a) The Isobaric mode is used, and
b) Manual mode is operating normally.
OPERATIONAL PROCEDURES 1. Verify cabin door is closed and locked prior to engine run.
2. Position the airplane in suitable engine run-up area.
3. Select Press System Select switch to AUTO.
4. Set parking brake. Start the right engine and maintain at idle thrust and select RH position on Air Source Select switch.
5. Position Avionics Power switch to ON.
6. Verify the Isobaric Mode is active by illumination of the amber light on the Pressurization Controller.
7. Select MANUAL position on the Temperature Select knob.
8. Disengage NORM PRESS circuit breaker on the left circuit breaker panel.
9. Select MANUAL position on Press System Select switch.
10. Advance both throttles to a moderate power setting to increase airflow into the cabin.
11. Using the MANUAL Toggle Valve, confirm operation of the manual system by driving the cabin altitude down approximately 1,000 feet below field elevation.
12. Return the cabin altitude to field elevation using the MANUAL Toggle Valve.
13. Rotate Air Source Select Switch to the OFF position.
14. Engage NORM PRESS circuit breaker and return the Temperature Select switch to AUTO and Press Select switch to AUTO position.
15. Verify that the airplane is not pressurized by observing the Cabin Pressure Differential Gauge.
16. Position AVIONICS POWER switch to OFF.
17. Shut down engines.
18. Place an “INOP” placard adjacent to Pressurization
Controller
19. Make appropriate entry on the discrepancy report.
--------------------------- OR ----------------------------
(O) May be inoperative provided:
a) The flight is conducted unpressurized:
1) CABIN PRESS MODE switches set AUTO,
2) Set Cabin Altitude 14,500 feet using "FL/CA"
button and ALT SET knob.
b) Flight can be and is conducted at or below 10,000 feet MSL, and
c) Cabin pressurization air source selector switch remains in FRESH AIR ( If ventilation is required or to evacuate smoke) or OFF otherwise.
NOTE: Red Cabin ALT will illuminate when cabin altitude
exceeds 9,500 feet (+/-400 feet) in the normal
mode or if cabin altitude greater than 14,500 feet
(+/-400 feet) with the cabin pressurization
controller in the high altitude mode.
OPERATIONAL PROCEDURES 1. Make appropriate entry on the discrepancy report.
2. Place a placard stating, “Select FRESH AIR or OFF only – Pressurization Auto Mode INOP” on the Tilt Panel.
3. Prior to flight, Flight crew will review route of flight using appropriate current enroute charts, approach plates, or databases to ensure that no Minimum Enroute or Minimum Reception Altitude along route of flight exceeds 10,000 MSL.
4. Flight will be planned and filed at or above all MEA’s
and MRA’s, and no higher than 10,000 feet MSL.
SYSTEM & SEQUENCE NUMBERS
REMARKS OR EXCEPTIONS
21 AIR CONDITIONING (Continued)
14. Freon Air Conditioning System
15. Cabin Outflow Valves
(M) May be inoperative provided:
a) Freon Air Conditioning System is deactivated, and
b) Cabin Temperature Control System is operating
normally.
MAINTENANCE PROCEDURES 1. Disengage the AIR COND circuit breaker and secure with tie-wrap.
2. Access the Air Conditioning System in the tailcone, and inspect power cables and frame-to-fuselage attach points for any sign of electrical arcing, damage, leakage, etc.
3. Place an “INOP” placard next to the air conditioner
controls.
4. Make appropriate entry on the discrepancy report.
(O)(M) May be inoperative provided:
a) At least one valve is secured open,
b) The flight is conducted unpressurized:
1) CABIN PRESS MODE switches set AUTO,
2) Set Cabin Altitude 14,500 feet using "FL/CA"
button and ALT SET knob.
c) Flight can be and is conducted at or below 10,000
feet MSL, and
d) Cabin pressurization air source selector switch
remains in FRESH AIR ( If ventilation is required
or to evacuate smoke) or OFF otherwise.
NOTE: Red Cabin ALT will illuminate when cabin altitude
exceeds 9,500 feet (+/-400 feet) in the normal
mode or if cabin altitude greater than 14,500 feet
(+/-400 feet) with the cabin pressurization
controller in the high altitude mode.
OPERATIONAL PROCEDURE 1. Make appropriate entry on the discrepancy report.
2. Place a placard stating, “Select FRESH AIR or OFF
only – (Left/Right) Outflow Valve INOP” on the Tilt
Panel.
3. Prior to flight, Flight crew will review route of flight using appropriate current enroute charts, approach plates, or databases to ensure that no Minimum Enroute or Minimum Reception Altitude along route of flight exceeds 10,000 MSL.
4. Flight will be planned and filed at or above all MEA’s
and MRA’s, and no higher than 10,000 feet MSL.
SYSTEM & SEQUENCE NUMBERS
REMARKS OR EXCEPTIONS
21 AIR CONDITIONING (Continued)
15. Cabin Outflow Valves (Continue)
MAINTENANCE PROCEDURES 1. Gain access to the outflow valves which are located on the aft pressure bulkhead in the aft cabin.
2. Remove bolts and washers securing either outflow valve from its mount on the forward side of the aft pressure bulkhead.
3. With all lines, hoses and wiring still connected, secure the outflow valve away from its mount using MS3367-4-9 tie straps, or other suitable straps, wire, etc. The outflow valve must not be allowed to slip back into position and block the opening in the aft pressure bulkhead.
4. Place a placard near Pressurization Controller stating: “ PRESS. SYS. INOP.”
5. Make appropriate discrepancy report entry.
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SYSTEM & SEQUENCE NUMBERS
REMARKS OR EXCEPTIONS
22 AUTO FLIGHT
1. Autopilot
(M) Unless enroute operations (such as RVSM) require its use, may be inoperative as required by FAR provided aircraft is operated with a crew of two.
MAINTENANCE PROCEDURES NOTE: With the autopilot inoperative, aircraft must
be operated using a crew of two.
1. Electrically isolate all three Autopilot Servos:
a) Select BATTERY and AVIONICS POWER
switches to OFF.
b) Gain access to the Elevator Autopilot Servo
(PSV-P1) and Rudder Autopilot Servo (YSV-P1)
in the tailcone by opening aft tailcone access panels 322CL, 321CC, and 321BL, located at the aft end of the tailcone baggage compartment. Refer to Chapter 6, Access Plates and Panels Identification - Description and Operation.
c) Disconnect electrical connector (PT304) from the
Elevator Autopilot Servo (PSV-P1), and the electrical connector (PT305) from the Rudder Autopilot Servo (YSV-P1). Bag and secure the connectors away from all control cables. The servos are located on the forward side of the vertical stabilizer canted spar.
d) Gain access to the Aileron Autopilot Servo (RSV-P1) in the tailcone by removing Panel 321A,
located on the left side of the forward closeout in the tailcone baggage compartment. This large panel provides access to the tailcone systems area. Refer to Chapter 6, Access Plates and Panels Identification - Description and Operation.
e) Disconnect electrical connector (PT303) from
the Aileron Autopilot Servo (RSV-P1). The servo
is located approximately 6 inches aft of the
bottom of the Aft Pressure Bulkhead and to the left of the aileron sector in the center
of the service bay. Bag and secure the connector away from control cables.
f) Re-install Panels 321A and 321BL.
2. Operate the control yoke and the rudder pedals through full control travel in all 3 axes to ensure that autopilot clutches are disengaged, and travel is unobstructed.
3. Place an “INOP” placard next to Autopilot (AP) switch on Autopilot Controller.
4. Make appropriate entry on the discrepancy report.
