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MASTER MINIMUM

EQUIPMENT LIST

OPERATIONAL AND

MAINTENANCE

PROCEDURES

GUIDE


Cessna Model 750 Citation

CE-750
(U.S. Registered Airplanes)

THIS MASTER MINIMUM EQUIPMENT LIST OPERATIONAL AND MAINTENANCE PROCEDURES GUIDE
SHALL BE USED IN CONJUNCTION WITH DEPARTMENT OF TRANSPORTATION FEDERAL AVIATION
ADMINISTRATION MASTER MINIMUM EQUIPMENT LIST.




1 OCTOBER 1996


REVISION 5 5 May 2007


COPYRIGHT © 1996

CESSNA AIRCRAFT COMPANY

WICHITA, KANSAS, USA
75MELM05



NOTICE
THE MASTER MINIMUM EQUIPMENT LIST (MMEL) IS DISTRIBUTED BY THE DEPARTMENT OF TRANSPORTATION FEDERAL AVIATION ADMINISTRATION. THIS MASTER MINIMUM EQUIPMENT LIST OPERATIONAL AND MAINTENANCE PROCEDURES GUIDE CONTAINS ONLY THE ITEMS FROM THE MASTER MINIMUM EQUIPMENT LIST WHICH HAVE OPERATIONAL (O) OR MAINTENANCE (M) PROCEDURE REQUIREMENTS. CESSNA DOES NOT SUPPORT MINIMUM EQUIPMENT LIST ITEMS NOT PUBLISHED IN THE MMEL.
CESSNA’S POLICY IS TO REVISE THIS GUIDE ONLY TO ACCOMMODATE CHANGES TO A NEW MMEL REVISION WHICH REQUIRE A CHANGE TO, OR A NEW, OPERATIONAL (O) OR MAINTENANCE (M) REQUIRED PROCEDURE. IF A REVISED MMEL IS RELEASED, BUT DOES NOT AFFECT ANY REQUIRED PROCEDURE, THE OPERATIONAL AND MAINTENANCE (O&M) GUIDE WILL NOT BE REVISED AT THAT TIME.
OPERATIONAL (O) AND MAINTENANCE (M) PROCEDURES IN THIS GUIDE ARE RECOMMENDED BY CESSNA AIRCRAFT COMPANY. THIS DOCUMENT IS NOT FAA APPROVED, BUT IS INTENDED TO AID OPERATORS IN WRITING AND GAINING APPROVAL FOR THEIR SPECIFIC MINIMUM EQUIPMENT LIST (MEL). THE OPERATOR IS RESPONSIBLE FOR ENSURING THAT ALL CREWMEMBERS ARE PROPERLY TRAINED IN THE USE OF MEL (O) AND (M) PROCEDURES.
THE NARRATIVE SECTION OF EACH MAINTENANCE PROCEDURE IS INTENDED TO SATISFY THE FAR 135 MEL REQUIREMENT FOR TRAINING NONMAINTENANCE INDIVIDUALS WHOM ARE AUTHORIZED, IN THE MEL, TO PERFORM MAINTENANCE TASKS.
LOG OF EFFECTIVE PAGES
Use this page to determine the currency and applicability of your Master Minimum Equipment List Operational and Maintenance Procedures Guide. Pages affected by the current revision are indicated by an asterisk (*) preceding the pages listed under the Page column of the effective log.
Following is a description of the Log of Effective Pages columns:
Page - Master Minimum Equipment List Operational and Maintenance Procedures Guide page number.

Page Status - Indicates if the page has been added, revised or deleted by the current revision.

Revision Number - Indicates the revision number.

REVISION NUMBER DATE

Original 1 October 1996

Revision 1 1 August 1997

Revision 2 1 September 1998

Revision 3 2 August 1999

Revision 4 15 April 2002

Revision 5 5 May 2007


PAGE PAGE STATUS REVISION

NUMBER
* Title Revised 5



* i thru ii/iii Revised 5

21-1 thru 21-2 Revised 1

21-3 thru 21-4 Revised 4

21-5 Added 4

* 21-6 Blank 5

* 22-1 Revised 5

22-2 Revised 2

* 23-1 Revised 5

* 23-2 Revised 5

* 23-3 Added 5

* 23-4 thru 23-6 Added 5

24-1 Revised 1

* 24-2 Blank 5

* 25-1 Revised 5
(Continued Next Page)

LOG OF EFFECTIVE PAGES (Continued)


PAGE PAGE STATUS REVISION

NUMBER
* 25-2 Added 5



* 26-1 Revised 5

* 26-2 Blank 5

27-1 Revised 4

27-2 Added 4

28-1 Revised 1

* 28-2 thru 28-3 Revised 5

* 28-4 Blank 5

* 30-1 Revised 5

* 30-2 Blank 5

* 31-1 Revised 5

* 31-2 Blank 5

* 33-1 Revised 5

* 33-2 Blank 5

* 34-1 thru 34-2 Revised 5

* 34-2A thru 34-2D Added 5

* 34-3 thru 34-7 Revised 5

* 34-8 Blank 5

* 35-1 Added 5

* 35-2 Blank 5

* 38-1 thru 38-4 Added 5

* 49-1 Revised 5

* 49-2 Added 5

* 52-1 Added 5

* 52-3 Blank 5

71-1 Revised 1

* 71-2 Blank 5

73-1 Revised 1

* 73-2 Blank 5

77-1 Revised 1

* 77-2 Blank 5

78-1 Original 0

78-2 Original 0

80-1 Revised 1

A-1 thru A-2 Original 0

A-3 Revised 1

* A-4 thru A-7 Revised 5

* A-8 Deleted 5


THIS MANUAL IS CURRENT WITH:

THE MASTER MINIMUM EQUIPMENT LIST, WHICH IS DISTRIBUTED BY

THE DEPARTMENT OF TRANSPORTATION FEDERAL AVIATION

ADMINISTRATION - REVISION 3a DATED 4/12/2006 FOR THE AIRPLANES

LISTED ON THE COVER.




SYSTEM & SEQUENCE NUMBERS

REMARKS OR EXCEPTIONS



21 AIR CONDITIONING
3. Bilevel Flow Control Valves


(O) May be inoperative provided:

a) Both valves are verified closed,

b) PAC Switches remain OFF,

c) Wemac Boost is operational,

d) Aircraft is operated unpressurized,

e) Aircraft is operated at or below 10,000 MSL, and

f) Baggage compartment remains empty.



OPERATIONAL PROCEDURES


(To Verify no air is flowing out of PACs)
Refer to Procedures Guide Appendix page A-3 (Air Distribution Flow Diagram) while performing this

procedure.


1. Start both engines.

2. Ensure APU is shut down and Wemac Boost is OFF.

3. Position CKPT PAC and CABIN PAC selectors to OFF.

4. Place ISOL VALVE to the CLSD (vertical) position.

5. Close all cabin overhead outlets (Wemacs) and open cockpit overhead air outlets.

a. There should be no airflow from the cockpit overhead air outlets.

6. Switch to manual pressurization and select and hold the manual control toggle (cherry picker) to the DOWN position. No change in cabin rate should be observed on the cabin rate-of-climb indicator.

7. Shut down engines.

8. Place placard adjacent to the environmental control
panel stating, "COCKPIT AND CABIN PAC's INOP."

9. Make appropriate discrepancy report entry.



NARRATIVE

With both bi-level flow control valves inoperative, the aircraft may be dispatched if both valves are verified in the closed position. No airflow out of either PAC will indicate that both bilevel flow control valves are in the closed position. Using the manual pressurization is a secondary check to ensure the valves are closed and the cabin is not being pressurized. However, presence of airflow indicates one or both valves are stuck in the open position and further troubleshooting should be initiated prior to aircraft dispatch.




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