VFR Obstacle Clearance Requirements

Once again, there are various exceptions when it comes to minimum altitudes and distances, based on the operating context.  Let's see if we can make some sense of it all.

Except for the purpose of take-off or landing....

CAR 704.23 (Commuter)

• Day: must be at least 500 AGL and 500 feet horizontal from any obstacle
• Night: must be at least 1000 feet above any obstacle within 3 miles of route

CAR 705.32:  (Airline)

• Day: must be at least 1000 AGL and 1000 feet horizontal from any obstacle
• Night: must be at least 1000 feet above any obstacle within 5 miles of route (2000 feet in mountainous regions)

Air Law Grab-Bag

Another random selection of Air Law trivia...

CAR 605.93 Technical Records - General
(4) Every person who brings into use a new volume of an existing technical record shall make the entries relating to the preceding volume that are necessary to ensure that an unbroken chronological record is maintained.

CAR 705.22 Operational Flight Plan

• PIC shall ensure a copy is left at a POD in accordance with procedures specified in COM
• airline shall keep a copy including any amendments for at least 90 days
• for commuters, the period is defined in the COM (CAR 704.17)
• if cruise segment is less than 30 minutes, may use an informal operational flight plan (CAR 725.22 and CAR 724.17)

CAR 705.94 Portable Oxygen

A 15 minute supply (with masks) must be available for each flight attendant on pressurized aircraft in airline operations above FL250. 

Reference AIM RAC 6.4.5

Along off-airways tracks, the airspace to be protected is 45 NM each side of that portion of the track which is beyond navigational and signal coverage range. 

Reference AIM RAC 8.1 IFR Enroute
If while on an IFR flight plan your ETA for a reporting point changes by more than 3 minutes, advise the appropriate ATS unit ASAP.

Manuals

CARs 704.122 and 705.136 Distribution of Company Operations Manual

• provide copies of appropriate sections to each crew member, ground operations and maintenance personnel
• alternatively place a copy in each aircraft
• each person with a copy must keep it up-to-date and accessible

CARs 704.123 and 705.137 Aircraft Operating Manual

• a copy must be on board each aircraft

CARs 704.124 and 705.138 Standard Operating Procedures

• required when aircraft is required to be operated by 2 or more pilots
• a copy must be on board each aircraft

For Airlines (705), AOMs and SOPs must be submitted to Minister. 

Routes in Uncontrolled Airspace

CAR 704.29 and CAR 705.37: No person shall, in uncontrolled airspace, conduct an IFR flight or a night VFR flight on a route other than an air route unless the air operator establishes the route in accordance with the Commercial Air Service Standards.

Related Standards CAR 724.29 and CAR 725.37:

• IFR MOCAs: minimum 2000 feet above highest obstacle within 10 miles of centreline
• Night VFR: minimum 1000 feet above highest obstacle within 3 miles of centreline

Air Law Potpourri

I went through some practice questions about Air Law this morning and it emphasized my need to study even more!  Here are some things I'd forgotten:

TRAINING

• Instrument Training
• CAR 425.21: with a CPL or ATPL, you may give a licensed pilot instrument training towards an IFR rating provided you have and instrument rating and:
• instructor rating OR
• 500 hours PIC of which 100 must be on the same group of aircraft used for training (and for Group 1, at least 10 hours on the type used for training)

AIRSPACE

• Class F Restricted
• CAR 601.04: A pilot may fly through an active area:
• if authorized by appropriate person
• if it doesn't pose hazard to aircraft
• if it doesn't jeopardize national security

• CAR 602.145: VFR Flight in ADIZ
• VFR flight within or into the ADIZ requires a Defense Flight Plan or Defense Flight Itinerary to be filed.
• Must revise time/point of entry if more than +/- 5 minutes or 20 NM.

AIRPORTS

• Take-off Alternates (i.e. weather is above take-off minima but below landing minima for that aerodrome):
• CAR 704.26 Commuter: if authorized on air operator certificate
• CAR 705.34 Airline: within 60 minutes with OEI (twin) or 120 minutes with OEI (three or four engines or ETOPS)

• Dispatch Limitations:
• CAR 704.49 and CAR 705.60: must be able to land at destination and alternate within
• Turbo-jets: 60% of landing distance available (LDA)
• Turbo-props: 70% of LDA
• must be suitable runway for aircraft and conditions, and can't take credit for more than 50% of anticipated headwind or less than 150% of tailwind
• CAR 704.50 and CAR 705.61: for turbo-jets, if wet runway expected, the calculated runway requirement must be increased by an additional 15%. (Can be less if AFM includes info, but not shorter than what is required by 704.49 / 705.60).

SYSTEMS

• Altitude Alerting System or Device
• CAR 605.36: required for turbo-jets, with these exceptions:
• MEL, or if no MEL, being ferried to location with device
• flight tests, PPCs, training
• if failure after TO, until it reaches location where it can be repaired

• GPWS
• CAR 605.37: required for 704 and 705 turbo-jets with MCTOW of more than 15000 kg (33069 lbs) and authorized to carry more than 10 passengers (exception - MEL). 

• Standby Attitude Indicator
• CAR 605.41: required for Part VII turbo-jets (some exceptions).  Required for Part VII turbo-props configured for 10 or more passengers.
• CAR 625.41: must be installed on turbojet aircraft, and operate for 30 minutes in the event of a complete electrical system malfunction

Personnel Requirements - Airline

CAR 705.103 Designation of PIC and SIC
Designated by air operator.

CAR 705.104 Flight Attendant Requirements
Discussed in another post.

CAR 705.106 Pilot Qualifications

• appropriate license, ratings, endorsements
• within past 90 days:
• 3 take-offs and landings at controls
• 5 sectors
• training requirements
• valid PPC
• valid line check or line indoc
• fulfilled operator's training
• exceptions: training or ferry flight or authorized on air operator certificate

CAR 705.107 Flight Engineer and Second Officer Qualifications
Here are the basics:

• appropriate license and endorsements
• check ride with operator, or 50 hours in past 6 months on type
• completed line indoc
• fulfilled operator's training

CAR 705.108 Crew Pairing
Based on combined experience.

CAR 705.111 Route and Aerodrome Qualifications
Must have been flight crew or observer along same route within the last 12 months or else have received training and demonstrated adequate knowledge.

CAR 705.113 Validity Period

• line check valid for 1 year
• PPC valid for 6 months (1 year if approved 6-month recurrent training completed)
• dispatcher competency check valid for 1 year
• if renewed within 90 days prior, new date is 6/12 months after old date
• validity can be extended up to 60 days

Approach Bans

It seems that Approach Ban regulations are full of IFs ANDs and BUTs...  This is a classic example of there always being an exception to the rule!!

For some helpful examples, reference AIM RAC 9.19.2.

CAR 602.129 Approach Bans - General
(This does not apply to Part VII aircraft - see below)

• RVR minima for aeroplanes:
• if RVR A and B
• RVR A < 1200 ft and RVR < 600 ft
• if only RVR A or B
• either < 1200 ft
• If RVR is below minimums, you cannot continue an instrument approach in an IFR aircraft unless:
• aircraft has passed FAF (if no FAF, aircraft has intercepted final approach course)
• training flight and landing not intended
• RVR is fluctuating above and below
• ground visibility is reported as at least 1/4 mile
• PIC is conducting precision approach to CAT III minima
• (5) No PIC of an IFR aircraft shall commence a non-precision approach, an APV or a CAT I or CAT II precision approach to an airport where low-visibility procedures are in effect

CAR 602.130 Approach Bans - Category III

(This does not apply to Part VII aircraft - see below)

• (2) No person shall continue a CAT III precision approach in an IFR aircraft beyond the FAF inbound or, where there is no FAF, the point where the final approach course is intercepted, unless the RVR reported is equal to or greater than the minimum RVR specified in the Canada Air Pilot in respect of the runway or surface of intended approach for the instrument approach procedure conducted.

CAR 700.10 Approach Bans - Non Precision, APV, and CAT I Precision

• RVR minima change based on CAP advisory visibility, for example:
• CAP 1/2 (2600) >> RVR 3/8 (1600)
• CAP 3/4 (4000) >> RVR 5/8 (3000)
• CAP 1 (5000) >> RVR 3/4 (4000)
• If no RVR, use runway vis.  South of 60: if no runway vis, use ground vis. 
• If below minimums, you cannot continue a non-precision approach, an APV or a CAT I precision approach in an IFR aircraft unless:
• aircraft has passed FAF (if no FAF, aircraft has intercepted final approach course)
• training flight and landing not intended
• RVR is fluctuating above and below
• South of 60 with no RVR or runway vis: ground visibility is fluctuating above and below
• localized phenomenon affecting ground visibility
• approach is conducted in accordance with 703.41, 704.37, or 705.48
• exceptions made based on operator certificate, 2-crew ops, aircraft equipment (FD / AP), runway lighting, etc. 
• different tables:
• CAP 1/2 (2600) >> RVR 1/4 (1200)
• CAP 3/4 (4000) >> RVR 3/8 (2000)
• CAP 1 (5000) >> RVR 1/2 (2600)
• (4) No pilot-in-command of an IFR aircraft operated under this Part shall commence a non-precision approach, an APV or a CAT I precision approach to an airport where low-visibility procedures are in effect.

Fuel Requirements

Fuel is probably one of the highest costs associated with the operation of an aircraft, so it makes sense that operators are always looking for ways to be more fuel efficient.  Extra fuel also means extra weight, which could otherwise be designated to paying passengers or cargo.  That being said, we know there are legal requirements for the minimum fuel on-board to cover various 'what if' scenarios.  

CAR 602.88 Fuel Requirements (General)

• Day VFR: destination + 30 min at cruise
• Night VFR: destination + 45 min at cruise

• IFR (prop)
• destination, approach, missed approach, alternate + 45 min
• if no alternate: destination, approach, missed approach + 45 min
• IFR (jet)
• destination, approach, missed approach, alternate + 30 min
• if no alternate: destination, approach, missed approach + 30 min

• All aircraft also need enough fuel to provide for:
• taxi, foreseeable delays prior to take-off
• weather
• foreseeable traffic delays
• loss of cabin pressure
• loss of engine at critical point
• any other foreseeable delays

CAR 704.20 Fuel Requirements (Commuter)
In addition to above,

• IFR
• descent to lower of single-engine service ceiling or 10000
• cruise at lower altitude to suitable aerodrome
• approach, missed approach
• hold for 30 min at 1500 AAE

CAR 705.25 Fuel Requirements (Airline)

• VFR: destination + 45 min at cruise

• IFR
• over designated routes / areas: destination + 5%
• descent to lower of single-engine service ceiling or 10000
• cruise at lower altitude to suitable aerodrome
• approach, missed approach
• hold for 30 min at 1500 AAE

Airborne Weather Radar

It's been said that thunderstorms are among the most deadly hazards faced by pilots.  It's one thing to 'see and avoid' them when you're in VMC.  But what if you're flying in cloud and/or at night?

CAR 704.64 Airborne Thunderstorm Detection and Weather Radar Equipment (Commuter)
Needed if you have passengers in IMC when thunderstorms are expected along route.


CAR 705.70 Weather Radar Equipment (Airline)
Needed if you have passengers in IMC when thunderstorms are expected along route.

Recall: RADAR = RAdio Detection and Ranging (i.e. what's out there, which direction, and how far away?).  Azimuth scan for horizontal; tilt control for vertical.

Things to remember:

• rain provides the greatest radar echo intensity
• drop size determines radar echo intensity to a much greater extent than drop number
• "hooks" and "fingers" identify areas of hail and turbulence
• when thunderstorms contour on radar displays, they should be avoided by at least 20 NM
• when flying in moderate rain, the most important key to a more informative radar display is the use of the tilt control
• tilt the antenna beam to scan the middle/lower area of a CB
• attenuation is a loss of effectiveness due to the presence of large amounts of precipitation between the radar antenna and target storm cells

Notes about lightning detection system:

• displays electrical activity associated with a storm or line of storms
• does not detect the presence or intensity of precipitation
• able to detect electrical activity from cells that are located behind mountainous terrain

The probability of lightning strikes occurring to aircraft flying within a thunderstorm area is greatest when operating at altitudes where temperatures are between -5 and +5 C.

Room to Breathe

Mark Twain wrote, “The air up there in the clouds is very pure and fine, bracing and delicious. And why shouldn't it be?--it is the same the angels breathe.”

For all its beauty and truth, we also know that at FL250, our time of useful consciousness is a mere 3 to 6 minutes. Hence, there are regulations about oxygen... requirements for quantity, duration, training, etc.

GENERAL

CAR 605.31 Oxygen Equipment and Supply

• non-pressurized aircraft 
• if more than 30 minutes between 10 000 and 13 000 >> all crew and 10% of passengers (at least 1 passenger) 
• above 13 000 >> all persons (for at least 1 hour if air transport) 
• pressurized aircraft following emergency descent 
• similar, but a bit more complicated, see table in regulations 

CAR 605.32 Use of Oxygen

1. Where an aircraft is operated at cabin-pressure-altitudes above 10,000 feet ASL but not exceeding 13,000 feet ASL, each crew member shall wear an oxygen mask and use supplemental oxygen for any part of the flight at those altitudes that is more than 30 minutes in duration. 
2. Where an aircraft is operated at cabin-pressure-altitudes above 13,000 feet ASL, each person on board the aircraft shall wear an oxygen mask and use supplemental oxygen for the duration of the flight at those altitudes. 
3. The pilot at the flight controls of an aircraft shall use an oxygen mask if

• the aircraft is not equipped with quick-donning oxygen masks and is operated at or above FL250; or
• the aircraft is equipped with quick-donning oxygen masks and is operated above FL410.

FIRST AID OXYGEN

CAR 704.67 (Commuter): if flying above FL250 >> supply one passenger for one hour

CAR 705.72 (Airline): 2% of occupants (at least 1 person) for one hour


PORTABLE OXYGEN

CAR 705.94 (Airline): above FL250 >> 15 min supply for each FA

Do you know what might happen if you don't use oxygen when your body requires it?Everyone reacts to hypoxia differently.  I went to the FAA Civil Aero Medical Institute in Oklahoma City for some invaluable High Altitude Training.  

Section 24 of Standard 724.115 and Section 29 of Standard 725.124 both specify that 'High Altitude Training is required for all flight crew members operating aeroplanes above 13 000 ASL before first assignment on a pressurized aeroplane and every three years thereafter.'

Flight Attendants

I'm not sure the general public has a real appreciation for the role of flight attendants as essential crew members.  They are our eyes and ears in the cabin, and they are integral to the safe operation of the aircraft, especially in emergency situations. 

CAR 705.104 Flight Attendant Requirements

(1) the basics:

(a) 1 - 40 pax ... 1 attendant

(b) 41 - 80 pax ... 2 attendants

(c) 81+ pax... 1 attendant for every unit of 40 pax or portion thereof

Of course, there are exceptions

(2) you may need more if required to cover all duties in the event of an emergency, or if required by the company operations manual

(3) you may use less if authorized on the air operator certificate

(4) if there is more than 1 deck (i.e. B747 or A380), (1) and (2) apply to each deck

This is your First Officer speaking...

These are the days now that passengers rarely see their pilots on airline flights, because we are usually behind a closed flight compartment door.  So I suppose it shouldn't surprise me how often I get asked, "Do you get to make the announcements over the PA?" because this is their main point of contact, albeit one-way.  But in my case, it is usually the captain who makes announcements, and the most I typically say is "Flight Attendants, please prepare the cabin for arrival."

CAR 705.74 Public Address System

No person shall operate an aircraft with passengers on board unless the aircraft is equipped with a public address system that can be operated independently of the interphone system required by section 705.73, except for handsets, headsets, microphones, selector switches and signalling devices.

And while we're at it,

CAR 705.73 Interphone System

This regulation complements the PA one (i.e. needs to be operated independently as well) but the difference is it is regardless of whether or not you have passengers on board.

Hand-Held Fire Extinguishers

I'm going to jump between subjects to keep things interesting, but I'll tag each post so they are searchable.  However, in keeping with the tradition of one of my best ground school instructors, we're going to start with Air Law.  Though it is arguably one of the less exciting subjects, there is no denying that knowledge of Air Law is essential.   So without further ado...

Remember: 704 is for Commuter Operations; 705 is for Airlines, and the requirements are different.  

CAR 704.83 says that you need at least one hand-held fire extinguisher readily accessible in the passenger compartment if you are flying with passengers.

CAR 705.93 is about 7 paragraphs long, and details quantity, location, type, and demarcation requirements.  Key take-away: in addition to one hand-held fire extinguisher in the flight compartment, there needs to be 2 or more in the cabin, based on the number of passenger seats (regardless if there are passengers in them or not):
(a) 60 or fewer passenger seats, two extinguishers;
(b) 61 to 200 passenger seats, three extinguishers;
(c) 201 or more passenger seats, one extra extinguisher for each additional unit of 100 passenger seats.
You also need one in each of the Class E cargo compartments and isolated galleys, if so equipped. 

So on a Dash-8 Q400 with seating for 72 passengers, a total of 4 hand-held fire extinguishers would be required (1 in the flight compartment and 3 in the cabin).