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TRANSPORT CANADA ORIGINAL MMEL SUPPLEMENT TO EMBRAER EMB-110 P1/P2 BANDEIRANTE MASTER MINIMUM EQUIPMENT LIST W. R. Jupp Chief, Aircraft Certification Flight Test for Minister of Transport Nov. 11, 2003 Revision No. Original I TRANSPORT CANADA ORIGINAL MMEL SUPPLEMENT TO EMBRAER EMB-110 P1/P2 BANDEIRANTE MASTER MINIMUM EQUIPMENT LIST Original signed by W. R. Jupp Chief, Aircraft Certification Flight Test for Minister of Transport Nov. 11, 2003 Revision No. Original II TRANSPORT CANADA Master Minimum Equipment List Supplement Page: I Revision Original EMBRAER EMB-110 P1/P2 BANDEIRANTE Nov. 11, 2003 List of Effective Pages Title Page List of Effective Pages I Original Nov. 11, 2003 Log of Revisions II Original Nov. 11, 2003 Reasons for Changes III Original Nov. 11, 2003 IV Original Nov. 11, 2003 Introduction V Original Nov. 11, 2003 Pages 22-1 Original Nov. 11, 2003 23-1 Original Nov. 11, 2003 25-1 Original Nov. 11, 2003 25-2 Original Nov. 11, 2003 25-3 Original Nov. 11, 2003 26-1 Original Nov. 11, 2003 27-1 Original Nov. 11, 2003 28-1 Original Nov. 11, 2003 30-1 Original Nov. 11, 2003 31-1 Original Nov. 11, 2003 32-1 Original Nov. 11, 2003 33-1 Original Nov. 11, 2003 34-1 Original Nov. 11, 2003 34-2 Original Nov. 11, 2003 34-3 Original Nov. 11, 2003 34-4 Original Nov. 11, 2003 34-5 Original Nov. 11, 2003 35-1 Original Nov. 11, 2003 38-1 Original Nov. 11, 2003 I TRANSPORT CANADA Master Minimum Equipment List Supplement EMBRAER EMB-110 P1/P2 BANDEIRANTE Page: II Revision Original Nov. 11, 2003 Log of Revisions Revision No. Date Page Number Original Nov. 11, 2003 All Initials II TRANSPORT CANADA Master Minimum Equipment List Supplement EMBRAER EMB-110 P1/P2 BANDEIRANTE Page: III Revision Original Nov. 11, 2003 Reasons for Changes General Original issue of Transport Canada Supplement incorporating relief and repair category as provided in the Guidance Book (GB). 22-1 Autopilot System – repair category per GB item 22-3. 22-2 Control Wheel Disengage Buttons – relief per GB item 22.1. 23-1 Communication Systems (VHF, HF, UHF) – relief per GB item 23.3. 23-2 Cockpit Speaker – relief per GB item 23.5. 23-5 Boom Sets (Microphones and Headsets) – relief per GB item 23.7. 25-2 Passenger Seat – relief per GB item 25.9. 25-5 Emergency Locator Transmitter – repair interval per CAR 605.39. 25-6 Passenger Convenience Items – NOTES per GB item 25.8 added. 25-6 First Aid Kit – relief per GB item 25.14. 25-8 Pilot Seat Adjustments – relief per GB item 25.10. 26-1 Portable Fire Extinguishers – relief per GB item 26.7. 27-5 Wing Flap Position Indicator – relief per GB item 27.4. 28-4 Fuel Quantity Indicators – relief per GB item 28.1. 30-2 Pitot/Static Heater – relief per GB item 30.5. 30-7 Heated Windshield – relief per GB item 30.12. 31-1 Clock – relief per GB item 31.1. 31-3 Flight Data Recorder (FDR) – relief per GB item 31.3. 32-1 Parking Brake – repair category consistent with Canadian requirements. 33-2 Cockpit/ and Instrument Lighting System – relief per GB item 33.1. 33-6 Anti-Collision Beacon Light System – relief per GB item 33.7. 33-7 Anti-Collision Strobe Light System – relief per GB item 33.7. 33-10 Emergency Lighting System – must be operative per GB item 33.3. 33-121 Logo Light System – repair category per GB item 33.5. 33-15 Ice Detector Lights – relief per GB item 33.12. 34-1 Gyroscopic Rate of Turn/Slip Skid Indicators – repair category per GB item 34.3. 34-2 Vertical Speed Indicator – repair category per GB item 34.11. III TRANSPORT CANADA Master Minimum Equipment List Supplement EMBRAER EMB-110 P1/P2 BANDEIRANTE Page: IV Revision Original Nov. 11, 2003 Reasons for Changes (cont’d) 34-3 Navigation Equipment (VOR/ILS, Loran, Omega/VLF, INS, Doppler, GPS, MLS, RNAV) – relief per GB item 34.6. Cross reference NOTE added. 34-4 Weather Radar/Thunderstorm Detection Equipment – relief per GB item 34.12. 34-5 ATC Transponder and Automatic Altitude Reporting System – relief per GB item 34.9. 34-6 Altitude Alerter – repair category per GB item 34.1. 34-11 ADF – relief and cross reference NOTE per GB item 34.6. 34-13 Marker Beacon – relief per GB item 34.6. 34-14 Nonstabilized Magnetic Compass – repair category per GB item 34.5. 34-17 GPWS (If required by regulations) – relief and repair category per GB item 34.4. 34-25 HSI – must be operative; relief for magnetic and free gyro compass modes per GB item 34.3. 35-1 Oxygen System (Passenger) – relief per GB item 35.3. 38-1 Potable Water System – relief per GB Item 38.1. 38-2 Lavatory Waste System – relief per GB item 38.2. IV TRANSPORT CANADA Master Minimum Equipment List Supplement EMBRAER EMB-110 P1/P2 BANDEIRANTE Page: V Revision Original Nov. 11, 2003 Introduction This Transport Canada MMEL Supplement constitutes a mandatory change to the FAA Approved MMEL for the EMBRAER EMB-110 P1/P2 BANDEIRANTE aircraft. Although Embraer publishes a MMEL, its last revision was dated 1987 and the FAA MMEL is considered more appropriate for using as a baseline for the TC Supplement. This MMEL Supplement must be used in conjunction with the FAA Approved MMEL (Revision No.9d, 03/19/98 or later applicable revision). The information contained herein supersedes the existing FAA MMEL only for those items listed herein. For items not contained in this supplement, consult the FAA MMEL. Operating and/or maintenance procedures referred to in this supplement are the same as those supporting the FAA MMEL unless otherwise indicated. Procedures required by the Transport Canada MMEL Supplement and not indicated in the FAA Approved MMEL must be provided by the operator. The FAA MMEL has entries where the ”Remarks or Exceptions” column makes reference to applicable FARs. Unless such an entry is superseded by an item in this Supplement, all references should be made to the applicable Canadian regulation. This MMEL Supplement uses the standard four column format as referenced in the Transport Canada MMEL/MEL Policy and Procedures Manual (TP 9155E). The same definitions and symbols as the FAA MMEL are also used. Items which have no MMEL relief (i.e. relief withdrawn) are not categorized. Comments and inquiries should be directed to: Transport Canada Chief, Flight Test Aircraft Certification Place de Ville, Tower C 330 Sparks Street Tower C, 3rd Floor Ottawa, Ontario K1A 0N8 V TRANSPORT CANADA Master Minimum Equipment List Supplement Aircraft: Revision No. Original Page: EMBRAER EMB-110 P1/P2 BANDEIRANTE Date: Nov. 11, 2003 22-1 of 1 System & Number Installed 1. 2. Sequence 3. Number Required for Dispatch Numbers 22 4. Remarks or Exceptions AUTO FLIGHT 1 Autopilot System B 1 0 2 Control Wheel Disengage Buttons C 2 1 B 2 0 No change from FAA MMEL One may be inoperative provided: a) The autopilot is not utilized at less than the initial approach altitude, and b) The pilot flying has the operative disconnect. May be inoperative provided the autopilot is not used. TRANSPORT CANADA Master Minimum Equipment List Supplement Aircraft: Revision No. Original Page: EMBRAER EMB-110 P1/P2 BANDEIRANTE Date: Nov. 11, 2003 23-1 of 1 System & Number Installed 1. 2. Sequence 3. Number Required for Dispatch Numbers 23 4. Remarks or Exceptions COMMUNICATIONS 1. Communication Systems (VHF, HF, UHF) 3 D - 2 Any in excess of those required by regulation and not powered by a standby or emergency bus and not required for emergency procedures may be inoperative. 1) VHF Comm B 2 1 VHF No. 2 may be inoperative provided HF is installed and operative. Cockpit Speaker C 1 0 May be inoperative provided: a) Procedures are not dependent on its use, b) Headsets are installed and used by each person on flight deck duty, c) All aural alerts, messages and other communication which are normally routed through the flight deck speakers must be audible through the headsets, and d) A spare headset must be readily available for crew use. 55 Boom Sets (Microphones and Headsets) 1) Headset Function 2) Mike Function C - - Headset function may be inoperative on any boom set provided alternate headset is installed, operative and used. No change from FAA MMEL TRANSPORT CANADA Master Minimum Equipment List Supplement Aircraft: Revision No. Original Page: EMBRAER EMB-110 P1/P2 BANDEIRANTE Date: Nov. 11, 2003 25-1 of 3 System & Number Installed 1. 2. Sequence 3. Number Required for Dispatch Numbers 25 4. Remarks or Exceptions (M) May be inoperative provided: EQUIPMENT/ FURNISHINGS 2 Passenger Seat C - - a) It does not block or restrict access to an emergency exit, b) It does not restrict any passenger from access to the main aisle, and c) The affected seat(s) is not used and is blocked and placarded ‘DO NOT OCCUPY’. NOTE: 1. A seat with an inoperative safety belt is considered inoperative. 2. Tthe affected seat(s) may include the seat behind and/or the adjacent outboard seat. 1) Recline Mechanism D - - (M) May be inoperative provided the seat is secured in the upright position. 2) Underseat Baggage Restraining Bar C - - (O) May be inoperative or missing provided: a) Baggage is not stowed under associated seat or seat assembly, b) Associated seat or seat assembly is placarded ”DO NOT STOW BAGGAGE UNDER THIS SEAT”, and c) Procedures are established to alert crew members of inoperative or missing restraining bar. TRANSPORT CANADA Master Minimum Equipment List Supplement Aircraft: Revision No. Original Page: EMBRAER EMB-110 P1/P2 BANDEIRANTE Date: Nov. 11, 2003 25-2 of 3 System & Number Installed 1. 2. Sequence 3. Number Required for Dispatch Numbers 25 4. Remarks or Exceptions EQUIPMENT/ FURNISHINGS 5 Emergency Locator Transmitter 6 Passenger Convenience Items A - - As required by regulations. - - No change from FAA MMEL NOTE: 1. Exterior lavatory door ash trays are not considered convenience items. 2. Galley equipment restraining devices such as latches, etc. must be serviceable or the compartment must not be used for storage and placarded “INOPERATIVE - DO NOT USE”. 3. Movie equipment individual screens, if applicable, must be capable of being stowed. 4. Audio or audio-visual entertainment equipment which is used as the sole means of providing safety briefings and demonstrations is not considered a passenger convenience item. TRANSPORT CANADA Master Minimum Equipment List Supplement Aircraft: Revision No. Original Page: EMBRAER EMB-110 P1/P2 BANDEIRANTE Date: Nov. 11, 2003 25-3 of 3 System & Number Installed 1. 2. Sequence 3. Number Required for Dispatch Numbers 25 4. Remarks or Exceptions EQUIPMENT/ FURNISHINGS 8 First Aid Kit 1) First Aid Kit Seal D B - - - (O) - Any kit or items contained in the kit in excess of those required by regulations may be incomplete or missing provided: a) Required distribution is maintained, and b) Procedures are established to alert crew members of missing or incomplete kits. The seal affixed on the exterior of the first aid kit may be missing or broken provided: a) The first aid kit is fully equipped or the kit has a maximum of one missing item, b) The kit includes a list of its contents, c) An inventory is taken on the content of the kit prior to departure, and d) Procedures are established to alert crew members of: 1) The missing or broken seal, and 2) The need to perform an inventory under proviso c). 9 Pilot Seat Adjustments C - - (M) Vertical and fore/aft adjustment may be inoperative provided the seat is secured in a position to meet individual pilot requirements. TRANSPORT CANADA Master Minimum Equipment List Supplement Aircraft: Revision No. Original Page: EMBRAER EMB-110 P1/P2 BANDEIRANTE Date: Nov. 11, 2003 26-1 of 1 System & Number Installed 1. 2. Sequence 3. Number Required for Dispatch Numbers 26 4. Remarks or Exceptions FIRE PROTECTION 1. Portable Fire Extinguishers D - - (O) Any in excess of those required by regulations may be inoperative or missing provided: a) The inoperative fire extinguisher(s) is/are removed from the passenger cabin, flight deck, and/or class E cargo compartment that is accessible to crew members during flight, and its location is placarded INOPERATIVE, or it is removed from the installed location, secured out of sight and the fire extinguisher and its installed location are placarded INOPERATIVE. b) Required distribution is maintained in the passenger compartment on each deck, the flight deck and each class E cargo compartment that is accessible to crew members during flight, as applicable, and c) Procedures are established to alert crew members of missing portable fire extinguishers. TRANSPORT CANADA Master Minimum Equipment List Supplement Aircraft: Revision No. Original Page: EMBRAER EMB-110 P1/P2 BANDEIRANTE Date: Nov. 11, 2003 27-1 of 1 System & Number Installed 1. 2. Sequence 3. Number Required for Dispatch Numbers 27 4. Remarks or Exceptions FLIGHT CONTROLS 5 Wing Flap Position Indicator C 1 0 May be inoperative provided: a) Flaps are visually checked for full travel prior to each takeoff, b) Flap operation is not restricted, c) Flaps are visually checked for proper setting and no asymmetry prior to each takeoff, and d) A gated flap pre-select system is installed. TRANSPORT CANADA Master Minimum Equipment List Supplement Aircraft: Revision No. Original Page: EMBRAER EMB-110 P1/P2 BANDEIRANTE Date: Nov. 11, 2003 28-1 of 1 System & Number Installed 1. 2. Sequence 3. Number Required for Dispatch Numbers 28 4. Remarks or Exceptions FUEL 4 Fuel Quantity Indicators C 2 1 (M)(O) One may be inoperative provided: a) Fuel quantity and balance is determined by other approved means prior to each flight, b) Fuel flow indications are operative, c) The low level warning (if installed) is operative, and d) The auto and/or manual balance system is operative. TRANSPORT CANADA Master Minimum Equipment List Supplement Aircraft: Revision No. Original Page: EMBRAER EMB-110 P1/P2 BANDEIRANTE Date: Nov. 11, 2003 30-1 of 1 System & Number Installed 1. 2. Sequence 3. Number Required for Dispatch Numbers 30 4. Remarks or Exceptions ICE AND RAIN PROTECTION 2. Pitot/Static Heater 5 Heated Windshield B C 2 2 1 1 Except where enroute operations require its use, one may be inoperative provided: (M) a) Flight is conducted in day VMC, b) Flight is not conducted in visible moisture, and c) Flight is not conducted in known or forecast icing conditions. One may be inoperative provided: a) Flight is not conducted in known or forecast icing conditions, b) Defog fan operates normally, and c) Associated window heat is deactivated. TRANSPORT CANADA Master Minimum Equipment List Supplement Aircraft: Revision No. Original Page: EMBRAER EMB-110 P1/P2 BANDEIRANTE Date: Nov. 11, 2003 31-1 of 1 System & Number Installed 1. 2. Sequence 3. Number Required for Dispatch Numbers 31 4. Remarks or Exceptions INDICATING/ RECORDING SYSTEMS 1. Clock 3 C - - A 1 0 Aircraft clock may be inoperative provided a reliable and functioning timepiece is readily available to all flight deck crew members. Flight Data Recorder (FDR) 1) If FDR and CVR required by regulations: 2) If only FDR required by regulations: A 1 0 3) If FDR not required by regulations: D 1 0 4) Digital FDR Recording Parameters required by regulations. A - - 5) Digital FDR Recording Parameters not required by regulations. A - - (O) May be inoperative provided: a) Cockpit Voice Recorder is verified operative, and b) Repairs are made within three flight days. May be inoperative provided repairs are made within three flight days. May be inoperative provided: a) Cockpit Voice Recorder is operative, and b) Repairs are made within twenty calendar days. May be inoperative provided repairs are made before the completion of the next heavy maintenance visit. TRANSPORT CANADA Master Minimum Equipment List Supplement Aircraft: Revision No. Original Page: EMBRAER EMB-110 P1/P2 BANDEIRANTE Date: Nov. 11, 2003 32-1 of 1 System & Number Installed 1. 2. Sequence 3. Number Required for Dispatch Numbers 32 4. LANDING GEAR 1 Parking Brake B 1 0 (O) Remarks or Exceptions TRANSPORT CANADA Master Minimum Equipment List Supplement Aircraft: Revision No. Original Page: EMBRAER EMB-110 P1/P2 BANDEIRANTE Date: Nov. 11, 2003 33-1 of 1 System & Number Installed 1. 2. Sequence 3. Number Required for Dispatch Numbers 33 4. Remarks or Exceptions LIGHTS 2 6 7 Cockpit/ and Instrument Lighting System Anti-Collision Beacon Light System Anti-Collision Strobe Light System C - - No change from FAA MMEL D - 0 May be inoperative for day operations. C 1 0 May be inoperative provided the strobe light system is operative.. D 1 0 May be inoperative for day operations. C 1 0 May be inoperative provided the beacon light system is operative.. D 1 0 May be inoperative for day operations. 1 1 Must be operative. 10 Emergency Lighting System 12 Logo Light System D 1 0 15 Ice Detector Light C 2 0 May be inoperative for day operations. TRANSPORT CANADA Master Minimum Equipment List Supplement Aircraft: Revision No. Original Page: EMBRAER EMB-110 P1/P2 BANDEIRANTE Date: Nov. 11, 2003 34-1 of 5 System & Number Installed 1. 2. Sequence 3. Number Required for Dispatch Numbers 34 4. Remarks or Exceptions NAVIGATION 1 Gyroscopic Rate of Turn/Slip Skid Indicators C 2 0 C 2 1 May be inoperative for day VFR. 2 Vertical Speed Indicators C 2 1 One may be inoperative for day VFR. 3 Navigation Equipment (VOR/ILS, Loran, Omega/VLF, INS, Doppler,, GPS, MLS, RNAV) C - - Any in excess of those required by regulations may be inoperative. NOTE: The operator’s MEL must cross reference the VOR/ILS and ADF items to specify a minimum of two systems, adequate for enroute and approach facilities for the planned itinerary, must be operative for dispatch.. 1) If used routinely C - - May be inoperative provided alternate procedures are established and used. 2) If not used routinely D - - May be inoperative provided routine procedures do not require its use. 3) Navigation Databases C - - May be out of currency for enroute operations only provided: a) Current Aeronautical Charts are used to verify Navigation Fixes prior to dispatch, b) Procedures are established and used to verify status and suitability of Navigation Facilities used to define route of flight, and c) Approach Navigation Radios are manually tuned and identified. TRANSPORT CANADA Master Minimum Equipment List Supplement Aircraft: Revision No. Original Page: EMBRAER EMB-110 P1/P2 BANDEIRANTE Date: Nov. 11, 2003 34-2 of 5 System & Number Installed 1. 2. Sequence 3. Number Required for Dispatch Numbers 34 4. Remarks or Exceptions NAVIGATION 4 Weather Radar/ Thunderstorm Detection Equipment D - - Any in excess of those required by regulations may be inoperative. 5 ATC Transponder and Automatic Altitude Reporting System C - - As required by regulations. 6 Altitude Alerter A 1 0 11 ADF C - - (O) Except where enroute operations require its use, may be inoperative provided: a) Autopilot altitude hold is operative, and b) Repairs are made within three flight days. Any in excess of those required by regulations may be inoperative. NOTE: The operator’s MEL must cross reference the VOR/ILS and ADF items to specify a minimum of two systems, adequate for enroute and approach facilities for the planned itinerary, must be operative for dispatch.. TRANSPORT CANADA Master Minimum Equipment List Supplement Aircraft: Revision No. Original Page: EMBRAER EMB-110 P1/P2 BANDEIRANTE Date: Nov. 11, 2003 34-3 of 5 System & Number Installed 1. 2. Sequence 3. Number Required for Dispatch Numbers 34 4. Remarks or Exceptions NAVIGATION 13 Marker Beacon 1) If used routinely C - - May be inoperative provided alternate procedures are established and used. 2) If not used routinely D - - May be inoperative provided routine procedures do not require its use. 14 Nonstabilized Magnetic Compass B 1 0 B 1 0 No change from FAA MMEL (O) May be inoperative provided: a) Any combination of two gyro or INS(IRU) stabilized compass systems operate normally, and b) Aircraft is operated: (1) With dual independent navigation capability, and (2) Under positive radar control by ATC during the en-route flight phase, or one of the navigation systems is a TSO’d GPS which provides track information. C 1 0 No change from FAA MMEL TRANSPORT CANADA Master Minimum Equipment List Supplement Aircraft: Revision No. Original Page: EMBRAER EMB-110 P1/P2 BANDEIRANTE Date: Nov. 11, 2003 34-4 of 5 System & Number Installed 1. 2. Sequence 3. Number Required for Dispatch Numbers 34 4. Remarks or Exceptions (O) May be inoperative provided: NAVIGATION 17 GPWS (If required by regulations) 1) Modes 1 to 4 2) Test Mode A A A - - 1 0 0 (O) 0 a) Alternate procedures are established and used, and b) Repairs are made within three flight days. May be inoperative provided: a) Alternate procedures are established and used, and b) Repairs are made within three flight days. May be inoperative provided: a) The GPWS is considered inoperative, and b) Repairs are made within three flight days. 3) Glideslope Deviation (Mode 5) B 2 0 One or both may be inoperative. 4) Advisory Callouts *** C - 0 (O) May be inoperative provided alternate procedures are established and used. 5) Windshear Mode *** C - 0 (O) May be inoperative provided: a) Alternate procedures are established and used, and b) Takeoffs and landings are not conducted in known or forecast windshear conditions. TRANSPORT CANADA Master Minimum Equipment List Supplement Aircraft: Revision No. Original Page: EMBRAER EMB-110 P1/P2 BANDEIRANTE Date: Nov. 11, 2003 34-5 of 5 System & Number Installed 1. 2. Sequence 3. Number Required for Dispatch Numbers 34 4. Remarks or Exceptions NAVIGATION 17 GPWS (If required by regulations) (cont’d) 6) TAWS (Enhanced GPWS) *** C 7) If GPWS not required by regulation D 25 HSI May be inoperative. 1 0 May be inoperative. 2 2 Must be operative 1) Direction Indications a) Compass Magnetic Modes b) Compass Free Gyro Modes B (O) One may be inoperative for flights within areas of magnetic reliability provided: a) Compass system operates normally in free gyro mode, and b) Free gyro mode is converted to magnetic mode using operative magnetic heading information. B (O) One or both may be inoperative for flights that are entirely within areas of magnetic unreliability provided two stabilized directional gyro systems operate normally and are used in conjunction with free gyro navigation techniques. B (O) One or both may be inoperative for flights that are entirely within areas of magnetic reliability (areas south of Northern Domestic Airspace). TRANSPORT CANADA Master Minimum Equipment List Supplement Aircraft: Revision No. Original Page: EMBRAER EMB-110 P1/P2 BANDEIRANTE Date: Nov. 11, 2003 35-1 of 1 System & Number Installed 1. 2. Sequence 3. Number Required for Dispatch Numbers 35 4. Remarks or Exceptions OXYGEN 1 Oxygen System (Passenger) B 1 0 (O) May be inoperative provided: *** C 1 0 a) Minimum en route altitude does not exceed 13,000 ft above MSL, b) All air conditioning packs are operative, c) Pressurization system is operative, d) Portable oxygen units are provided for all crew members and 10% of the passengers; for half an hour (supplemental oxygen), and e Passengers are appropriately briefed. May be inoperative for non-passenger carrying operations provided portable oxygen bottles are available for all crew members required to be off the flight deck. TRANSPORT CANADA Master Minimum Equipment List Supplement Aircraft: Revision No. Original Page: EMBRAER EMB-110 P1/P2 BANDEIRANTE Date: Nov. 11, 2003 38-1 of 1 System & Number Installed 1. 2. Sequence 3. Number Required for Dispatch Numbers 38 4. Remarks or Exceptions WATER/WASTE 1 Potable Water System C C 2 Lavatory Waste System C - - 1 0 0 0 (M)(O) System may be inoperative provided: a) Tank is drained and inspected to ensure no leakage, and b) Procedures are established to deactivate applicable system components to prevent its use or servicing. (M)(O) Individual components may be inoperative provided: a) Associated components are deactivated or isolated, and b) Associated system components are verified not to have leaks. (M)(O) May be inoperative provided: a) Waste is drained and system is inspected for leakage, b) Procedures are established to deactivate system components, c) Lavatory door is locked closed and placarded INOPERATIVE - DO NOT ENTER. NOTE: Any portion of system which operates normally may be used.