- Quizzer now presents correctly for the Flair retail version. - System Notes option now available in the Extras area. - More on the hot cabin issue. - Many under-the-hood editorial changes.

- MMELs updated - AD update - MAX Hot Cabin issue discussion - LRD issue discussion updated - Chapters conversion is continuing.

Version 6.6.0, December 30, 2025, DB 2760 DEC ’25 Update All Aircraft • The Rudder Trim technique has been changed. • Added a photo of the dual loop wheel well fire detectors. • Corrected the “Bleeds Off Takeoff” title. Steps for “Unpressurized Takeoff or Landing” follow. • Added a description of the Flight Crew Oxygen System to the Oxygen System Notes. All NG and MAX Aircraft • Engine Anti-ice on-ground and Fan Ice Removal have been taken out of the Engine Start Switch System Notes and put in the Wing/Engine anti-ice System Notes. • Approximately 20 new “chapters” have been added to the Wing/Engine Anti-ice Panel System Notes. AA Aircraft • Reorganized and expanded the description of the 3RA-3VM Right AUX HGS Annunciator panel. • Rewrote paragraph on Cargo Compartment Fire Suppression. • Added the description of the Global Aeronautical Distress and Safety System to the 3UN-3VM ELT System Notes. • Small change to the NO VSPD definition under the Takeoff Ref Speeds. • Slight addition to the NG pfd failure flags. KIA Aircraft YL011 • Added the description of the Forward Cargo Compartment Smoke Penetration Prevention. White Tail -8 BBJ • Added the APU BLEED VLV CLOSED light to the upper right corner of the fwd overhead panel. • Added the CABIN SEATS and INTERIOR DOORS lights to the door annunciator panel. AS Aircraft • Added the NG differences to the Cargo Fire Panel System Notes. COPA • Placed the ACPs in the left and right side walls. Most Aircraft • Most Cargo Fire Panel System Notes have been rewritten. FMC GUIDE • More information has been added to the GPS UPDATE ON/OFF LSK on the NAV OPTIONS page.

All NG and MAX Aircraft * Every graphic in the Flap Lever System Notes has been updated, and most with new MAX photos. * A front view photo of the nose gear has been added to the Tiller along with descriptions of the compensator and load damper. Browse > Tiller (twice) * A new photo of the Landing Gear Transfer Valve has been added. * The photos of the A and B EDP SOVs has been replaced with new ones. • Hydraulic Reservoir Pressurization System has been re-written. * Hydraulic System Notes has several new photos besides the Reservoir Press System. All MAX Aircraft * A Ground Spoiler graphic and photo of the Ground Spoiler Control Module has been added. * These System Notes now have the latest “Chapters” feature from Robert. SW MAX • Corrected the mis-named fleet numbers in the GPWS System Notes All NG and MAX * Re-wrote the Stall Warning Test switches 1 and 2. * Corrected the Index for the GPWS System Notes so that it is not alphabetical. * Changed description of Takeoff Flap Settings, adding more choices. AA Aircraft * Corrected the fleet IDs on the ELT * The De/Antiicing Allowance Times Table has been replaced. * The procedure for a Bleeds Off Takeoff with the APU inop or de/anti-icing fluid having been applied has been added.

- New System Note feature. - Many editorial improvements.

6.3.1: Hotfix to address an issue with displaying system notes. Bill has also tweaked a number of illustrations. Update History August 2025 - rewritten the renderer for the system notes (again), which should eliminate a clip-off issue some of you have reported. - also introduced a new feature, segmented system notes. All NG / MAX Aircraft • Along with the new renderer, on my side, each graphic must be adjusted and placed it the desired place. There are hundreds and this job is not yet finished. Let me know if you run across a graphic that looks to be too large. • The Air Conditioning Control Head Notes has been re-organized. • The Takeoff Configuration Warning drawing has been moved from the forward thrust levers to the TAKEOFF CONFIG warning light on the left and right forward panels. • An AC electrical diagram has been added to the APU GEN OFF BUS light. • Automatic Flight Takeoff Profiles for TO/GA Takeoff and F/D Takeoff Mode with LNAV and VNAV Armed have new graphics and has been re-organized. • A diagram has been added to show the power source for the ignition igniters. • Hydraulic Control Panel - Added the description of the Pressure Transmitter that is on both A and B Pressure Modules. • Standby LOW QUANTITY light - Improvements have been made to the diagram and added the Flow Limiter to the A hydraulic system line going to the PTU control valve • Air Conditioning Panel - The Fan Bypass Check Valve was added to all air conditioning diagrams. MAX Aircraft • Flight and Ground Spoilers • Maneuver Load Alleviation System • SPEED BRAKE EXTENDED light (P3 panel) Diagrams • Improved diagrams for the MAX Flight Spoilers, Ground Spoilers, and added a MAX combined Spoilers diagram. MAX with Head-Up Display (HUD) Alaska Airlines airplane - We are reorganizing the Alaska fleet. The MAX will be the default airplane with the NG variants presented as Differences. This is a long project and will be in better shape in one or two more updates. The Alaska airplane is the B737 -8. Classic Aircraft • Corrected the Flap Load Relief Table The flap load relief functions only at flaps 40.

Update History August 2025 - rewritten the renderer for the system notes (again), which should eliminate a clip-off issue some of you have reported. - also introduced a new feature, segmented system notes. All NG / MAX Aircraft • Along with the new renderer, on my side, each graphic must be adjusted and placed it the desired place. There are hundreds and this job is not yet finished. Let me know if you run across a graphic that looks to be too large. • The Air Conditioning Control Head Notes has been re-organized. • The Takeoff Configuration Warning drawing has been moved from the forward thrust levers to the TAKEOFF CONFIG warning light on the left and right forward panels. • An AC electrical diagram has been added to the APU GEN OFF BUS light. • Automatic Flight Takeoff Profiles for TO/GA Takeoff and F/D Takeoff Mode with LNAV and VNAV Armed have new graphics and has been re-organized. • A diagram has been added to show the power source for the ignition igniters. • Hydraulic Control Panel - Added the description of the Pressure Transmitter that is on both A and B Pressure Modules. • Standby LOW QUANTITY light - Improvements have been made to the diagram and added the Flow Limiter to the A hydraulic system line going to the PTU control valve • Air Conditioning Panel - The Fan Bypass Check Valve was added to all air conditioning diagrams. MAX Aircraft • Flight and Ground Spoilers • Maneuver Load Alleviation System • SPEED BRAKE EXTENDED light (P3 panel) Diagrams • Improved diagrams for the MAX Flight Spoilers, Ground Spoilers, and added a MAX combined Spoilers diagram. MAX with Head-Up Display (HUD) Alaska Airlines airplane - We are reorganizing the Alaska fleet. The MAX will be the default airplane with the NG variants presented as Differences. This is a long project and will be in better shape in one or two more updates. The Alaska airplane is the B737 -8. Classic Aircraft • Corrected the Flap Load Relief Table The flap load relief functions only at flaps 40.

- Added LRD and "Load Reduction Device" to the Index, so as to be easier to find. - Added a Special Information Airworthiness Bulletin covering synthetic fuel. - A CAUTION has been added to the IRS MSU ALIGN position. - PILOT CALL light: A diagram has been added to describe how the PILOT CALL light works. - GRD CALL button: A power diagram has been added to the description of the Ground Crew Call Horn. - ON DC light: A diagram has been added to the description of the ON DC light. - Many connections have been made to the GRD PWR switch. NG and MAX aircraft - The Overboard Exhaust Valve (OEV) description has been re-written/expanded and moved to the Equipment Cooling System Notes. - The Altitude Alerting Systems drawing has been improved. - A diagram has been added describing how the “2-bottle” and “3-bottle”cargo fire systems work. (The only 3-bottle system in the app is the BBJ B737-700.) Cargo Fire NNC [As usual all NNCs in the app are for educational purposes only and are NOT to be used] A step has been added to note the exact time the DISCH switch is pushed. - A description and diagram of the Light Plate Power Connector has been added to most of the “+” symbols that are in the cockpit. I may have missed a few. You will find these “+” symbols only on Light Plates. This is mainly for maintenance as they must be very careful in removing a Light Plate. If a light plate goes out, you might be able to get it illuminated again by pressing on the +. - External Power receptacle (P91) has been added to the Ground Power System Notes. Alaska Airplane All aircraft dimensions have been added. Our goal is to have the Alaska MAX -8 & -9 airplanes in the app on the next update. The NG airplanes will be brought is as Differences. Lot of work.

- Clarified cargo fire bottle time options - AD 2025-07-03 (fuselage inspection)

Same as 5.9.5, plus a hotfix to address a failure at startup. --- APP tweak FMC GUIDE TAKEOFF REF 1/2 All NG and MAX aircraft: A drawing has been added to the Pack switches showing the difference in the takeoff N1s with normal ops and with one pack ions, NG and MAX.

APP tweak FMC GUIDE TAKEOFF REF 1/2 All NG and MAX aircraft: A drawing has been added to the Pack switches showing the difference in the takeoff N1s with normal ops and with one pack ions, NG and MAX.

- All aircraft: The diagram of the LIGHTS TEST switch has been updated a bit. - ENGINE FIRE or Engine Severe Damage or Separation Hypothetical NNC for discussion - Smoke, Fire or Fumes Hypothetical NNC for discussion - MAX: Engine Start Levers clarification.

- Completed vector diagram updates. - Updated MAX Load Reduction Device article for the LEAP 1B MAX BBJ: The White Tail -8 is being changed to a BBJ -8. All Airplanes Pressurization: The Auto Pressurization Mode of operation diagram has been added to the Cabin Altitude System Notes. Flight Controls: The Leading Edge Flaps Transit NNC has been added to the LE FLAPS TRANSIT light. (for educational purposes only; use your company's NNC!) Flight Controls: The LE SLATS diagram at the end of the Leading Edge Devices System Notes has been much improved. Fire Protection: The description of the Cargo Fire DET SELECT switches has been re-written (corrected) with new diagrams. SW MAX Engine Starting: The engine start switch option was changed from AUTO to OFF. Electrical: The ISP Port has been added to the description of the IFE / PASS SEAT switches.

- Discussion of Load Reduction Device - Electrical, hydraulics, and anti-ice articles - Continuing with the graphics upgrade project

- Continuing with updating graphics in Control Head and System Notes - Fixed cargo fire control head diagram (was displaying wrong feature) - Reorganized Standby Power Check

- Converted a couple hundred more raster diagrams to vector diagrams.

- Mostly converting bitmapped diagrams to vector diagrams. - Minor improvement in those diagrams as we go along.

5.6.2 - Hotfix to fix issues with Index and Alerts. 5.6.1: - Hotfix to address capabilities issue with 5.6.0. 5.6.0: - Many bug fixes and improvements. - Much editorial content improvement across the fleet.

5.6.1: - Hotfix to address capabilities issue with 5.6.0. 5.6.0:  - Many bug fixes and improvements. - Much editorial content improvement across the fleet.

- Many bug fixes and improvements. - Much editorial content improvement across the fleet.

Version 5.2.1: Created distinct SWA MAX 8 airframe, based on the earlier combi airframe.

Version 5.2.0, June 6, 2024, DB 2366 Update History Jun 2024 KA Assigned correct fleet IDs to the NGs for transponders, wx radars, ADFs, Radio Tuning Panels, Oil quantity units (qts/liters), and Thrust Mode Display SW NG Assigned correct fleet IDs for: … Radio Tuning Panels … Exterior light control panel – right … Emergency Lighting and Passenger Signs … Air Conditioning Controls … Bleed Air Controls … AC & DC Meters includes CAB UTIL / GALLEY PWR and single bat / dual bat airplanes … operating equipment during Loss of All Generators … Thrust Mode Display … AC & DC Meters selectors Approach Reference / Navaid Identifier encoding and Scale ID Annunciation has been updated to B737-800. APU fuel feed includes APU DC fuel pump (N270WN, N271LV, N798SW). All Airplanes A drawing of the Cargo Electronic Unit has been added to the Cargo Fire Panel, with an explanation on how it is used by maintenance. The drawing of the Cargo Fire panel has been improved, too. Rewrote/reorganized Command Speed Limiting, Reversion Modes, Placard Limit Reversion, and Minimum Speed Reversion. CALL System If you have a blue CALL light on fwd overhead the description of the CALL system has been added to it. If you have the integrated ACP, the description of the CALL system has been added to the white C in the transmitter selector switch. FLR Airplane The Thrust Mode Display has been corrected for your fleet.

Version 5.1.6, May 17, 2024, DB 2352 - Consolidated lights above the CAPT and F/O ND displays. - The Cabin Altitude Warning System has been added to the Cabin Altitude Panel System Notes - A diagram of all three scenarios of the Cabin Altitude Pressure switches has been added to Diagrams. - Added paragraph about A/T engagement in MCP SPD. - AFS OPS in WINDSHEAR has been added. - The EEC idle operation has been re-written. - The description of the APU protective shutdown has been expanded a bit. - A note has been added to LE FLAPS EXT light and LE FLAPS TRANSIT lights - Elevator Feel Shift: Re-written and improvements have been made to 2 diagrams. - A description of Automatic Navigation Realignment (ANR) mode has been added to the IRS Mode Selector System Notes. - The RTO wheel speed has been updated from 90 kts to 88 kts. MAX Nose Wheel Steering Angle: Changed the effective nose wheel steering angle from 75° to 73°. In the Bleed Air Control panel System Notes, two paragraphs had dropped out in the last update. These have been replaced. Equipment Cooling: Added FORWARD CARGO COMPARTMENT SMOKE PENETRATION PREVENTION to the Equipment Cooling system. AA - Revision 023.1 has been covered. - A correction to the list of what can cause the A/P to disengage has been made. - A statement regarding V/S has been added to the Autothrottle Engagement list. - Corrected a statement under APP mode regarding After Loc and G/S capture. - 3DM-3VM Cockpit Voice Recorder: Some changes were made to the TEST switch. - Added “90 day battery” to the digital CVR underwater locator beacon. - TCAS Aural Advisory: Removed the TCAS aural advisory ADJUST VERTICAL SPEED, ADJUST VERTICAL SPEED.

- Fixed a bug in which some content would not display correctly. - Fixed a bug in the Airworthiness Directives section where a font was displaying too larger. - Added diagram for tail skid (NG and MAX). - Other editorial improvements.

Version 5.1.0, April 2, 2024, DB 2330 Update History APR 2024 Software - We’re pleased to announce the addition of the Flair 737-8 MAX to our fleet! Flair is an ULCC based in Toronto. - We are removing the Aeroflot airplane from distribution, due to the war. - We’ve added the three Airworthiness Directives and the January Emergency AD (door plug) published by the FAA since Sept 2023. - We’ve updated the airplane descriptions for all the airplanes. - We’ve fixed the Dark Mode issues with Flash Cards. Diagrams - Two diagrams have been added: Probe Heat Capt Pitot Study and Probe Heat TAT Study -The ACP ALT / NORM switch has been re-written, separating the R/T – I/C switches and the RADIO – INT switches. - Re-wrote and added diagrams to Capt Pitot Probe light and the TAT Test switch on the Window Heat panel. - Added the Enhanced Bank Angle Warning description to the Attitude Indicator. - Re-wrote the IAS/MACH description. - Added a switch/wire diagram to the Master Lights Test switch and Diagrams tab. - IRS FAULT NNC: Added the IRS FAULT NNC MAX & NG NNC to the appropriate FAULT light. - Added a wire diagram to the Wheel Well light switch. - Added a drawing of the sensing element for the wheel well fire detection. - MAX White Tail -8: Replaced the Capt ND Split DU. - Updated the All Generators Inop - Improved the drawing of the cargo fire bottles. - Replaced 3 DC diagrams. - Numerous minor fixes.