Module 11C.7, 11C.8, 11C.14, 11C.15 — B3 light aeroplanes: emergency equipment, portable extinguishers, lights and oxygen

B3 levels

Sub-module	B3 level
11.7(a) Emergency equipment requirements	2
11.7(b) Cabin and cargo layout	not required
11.8(a) Fixed fire/smoke detection and extinguishing	not required
11.8(b) Portable fire extinguisher	1
11.14 Lights	2
11.15 Oxygen	2

11.7(a) Emergency equipment (level 2)

Emergency equipment on B3 aeroplanes depends on the type certificate, the kind of operation (mostly non-commercial, Part-NCO) and the route (over water, remote areas). Typical items and their maintenance:

Equipment	Maintenance points
Seats, safety belts, shoulder harnesses	Webbing wear/fraying, buckle and inertia-reel function, attachment fittings; seat rail locking and stops (seat slippage on rails has caused accidents)
ELT (emergency locator transmitter)	Fixed automatic ELT transmitting on 406 MHz (satellite, coded with aircraft identity/registration) and 121.5 MHz (homing); g-switch activation; battery expiry date on the unit (replace at expiry or after cumulative use); antenna and coax condition; test with the self-test and only per manufacturer/national rules; registration/coding must match the aircraft
Portable/survival ELT or PLB	Where carried, check battery date
Hand fire extinguisher	Within the pilot's reach, secure bracket, gauge in green, seal intact, weight check
First-aid kit	Contents and expiry dates where carried
Life jackets / life raft	For flights over water beyond specified distances — inspection/overhaul intervals, CO₂ cylinders, lights
Emergency exits / canopy jettison	Function, placards
Ballistic parachute (airframe recovery) systems	On some light aircraft (e.g. some composite types) — explosive rocket; safety pin during maintenance; repack/rocket replacement intervals; hazard warning placards on the airframe

Key fact: An ELT's battery expiry date must be shown on the outside of the transmitter; 406 MHz ELTs are coded to the aircraft and alert via satellite, 121.5 MHz is for homing.

11.8(b) Portable fire extinguishers (level 1)

Type	Use	Notes
Halon 1211 (BCF)	Classes A, B and electrical	Most common in light aircraft; ventilate the cabin after use; Halon replacements being introduced
CO₂	B and electrical	Asphyxiation risk in a small cockpit; very cold discharge
Dry powder (ABC)	A, B, C	Obscures vision and leaves corrosive residue — not preferred inside cockpits
Water (with antifreeze)	A only	Never on electrical or fuel fires

Engine fires on B3 aircraft are dealt with by shutting off the fuel (selector/firewall shut-off), mixture to idle cut-off and electrics off — fixed engine extinguishing systems are not part of the B3 syllabus.