Page 35 is where you'll find that content — Page 267, Lesson 366

I want to walk you through the index of this Operational Procedures manual. This is the part of the book that lists every topic alphabetically and tells you exactly which page to turn to. As a professional pilot, you'll use this constantly to find the specific regulation, procedure, or definition you need in a hurry. Let's start with the first entry: horised Aerodromes on page 35. That's a typo in the index — it should read "horizoned Aerodromes" or more likely "horizoned" is a misprint for "horizon" or "horizontal" — but the page reference is what matters. Page 35 is where you'll find that content. Next we have Authority of the Commander on page 14. This is a critical legal concept: the commander's ultimate responsibility and authority over the flight, including the right to make the final decisions regarding safety. Moving to the B section: BCU stands for Bird Control Units, found on page 149. These are the teams or systems responsible for managing bird activity around aerodromes to reduce strike risk. Right below that, Bird Strike is also on page 149 — the event of a bird colliding with an aircraft. Blue Spruce on page 131 — that's a specific oceanic clearance or procedural term used in North Atlantic operations. BOTA stands for Brest Oceanic Transition Area, referenced on pages 132 and 135 — that's the airspace transition zone off the coast of Brest, France, for aircraft crossing the Atlantic. Braking action appears on pages 234 and 235. This is the measure of how effectively an aircraft can decelerate on a runway surface, reported by pilots or measured by friction-testing vehicles. Break on page 105 — in aviation, this usually refers to a break-in procedure or a break-out maneuver. Break-in Markings on page 74 are the painted markings on a runway or taxiway that indicate where an aircraft should enter or cross. Now into the C section: Cabin Crew is referenced across multiple pages — 25, 84, 86, 99, 100, and 101. These are the crew members responsible for passenger safety and cabin management. CAS on page 120 stands for Calibrated Airspeed — the indicated airspeed corrected for instrument and position errors. Category I, Category II, and Category III are precision approach categories. Category I is on page 62, Category II on pages 55 and 63, and Category II and III together on page 60. Category III breaks down further: Category III A on page 64, Category III B on page 64, and Category III C on page 64. These define the minimum visibility and decision height requirements for autoland and low-visibility operations. CAT II/III on page 60 refers to the combined operational approvals for Category II and Category III approaches. CDFA on pages 56 and 154 stands for Constant Descent Final Approach — a stabilized approach technique where the aircraft descends at a constant angle all the way to the runway threshold, rather than stepping down in levels. CDL on page 146 is the Configuration Deviation List — a document that lists aircraft parts or systems that may be inoperative for a flight, with specific operating restrictions. Certificate of Airworthiness (CofA) on pages 73 and 78 — that's the official document certifying that the aircraft meets its design standards and is safe to fly. Certificate of Registration on page 14 is the document proving ownership and nationality of the aircraft. Chart Holders on page 83 — these are the physical or electronic holders for navigation charts in the cockpit. Checklists on page 35 — the step-by-step procedural lists pilots use to verify aircraft configuration and system status. Circling on page 56 — that's a circling approach, where after an instrument approach you visually circle to land on a runway not aligned with the final approach course. Class A on page 120 — that's Class A airspace, which requires an IFR clearance and two-way radio communication. Cockpit Voice Recorder (CVR) on pages 13, 16, and 75 — the crash-protected recorder that captures all cockpit audio, including crew conversations and radio communications. Co-Efficient of Friction on page 234 — that's the numerical measure of runway surface friction, critical for braking performance calculations. CofA on pages 24 and 73 — that's the Certificate of Airworthiness again, abbreviated. Commander on page 93 — the pilot in command, responsible for the flight. Commencement of Flight on page 145 — the point at which a flight is considered to have begun, typically when the aircraft first moves under its own power for the purpose of flight. Common Language on page 11 — in aviation, that's English, the universal language for air-ground and air-air communications. Communications Equipment on page 81 — the radios, transponders, and related gear required for the flight. Configuration Deviation List (CDL) appears again on pages 13, 27, 44, 145, and 146 — this is the same document I mentioned earlier, listing allowable missing or inoperative parts with their restrictions. And finally, Constant Descent Final Approach on page 154 — that's the full name for CDFA, the stabilized approach technique. That's the index section you're looking at. It's a reference tool — you won't study it like a chapter, but you'll use it every time you need to find a specific topic in this manual.