Page 120 - Overseas Territories Aviation Requirements Consolidated - Total AOC

Regulation OTAR Part 121 - CAT - Large Aeroplanes

(2) The risk assessment shall demonstrate how an equivalent level of safety will be
maintained.
(3) The risk assessment shall include:
(i) flight fuel calculations; and
(ii) capabilities of the operator to include a data-driven method that includes a
fuel consumption monitoring programme and/or the advanced use of
alternate aerodromes; and
(iii) specific mitigation measures.
(e) A flight shall not be commenced nor continued beyond the point of in-flight re-planning unless the
usable fuel on board meets the applicable requirements in 121.280(c) or (d).
(f) The use of fuel after flight commencement for purposes other than originally intended during pre-
flight planning shall require a re-analysis and, if applicable, adjustment of the planned operation.
Note: Guidance on flight planning including the circumstances that may require re-analysis,
adjustment and/or re-planning of the planned operation before take-off or en-route, is contained in
the Flight Planning and fuel Management Manaual (Doc 9976)
OTAR.121.285 Checklists
(a) The operator shall ensure that flight crews are provided with checklists of normal, abnormal and
emergency aircraft procedures.
(b) The checklists provided to flight crews shall be designed in accordance with human factors
principles and shall contain sufficient information to enable flight crews to comply with the
operating procedures in the operations manual, the aircraft flight manual or such other
documents as may be associated with the certificate of airworthiness.
(c) The operator shall ensure that flight crew operating procedures incorporate the use of checklists
for all phases of aircraft operations and in emergency.
(d) The operator shall ensure that checklists are used by flight crews prior to, during and after all
phases of aircraft operation.
OTAR.121.290 In-flight simulation of emergency situations
The operator shall ensure that on a flight when passengers are being carried, no emergency or abnormal
situations are simulated
OTAR.121.305 In-flight fuel management
(a) The operator shall establish a procedure to ensure that in-flight fuel checks and fuel management
are carried out.
(b) The pilot in command shall ensure that fuel checks are carried out at regular intervals to confirm
that the amount of usable fuel remaining in flight is not less than the fuel required to proceed to an
aerodrome/landing site where a safe landing can be made, with the planned final reserve fuel
remaining.
Note 1: The protection of final reserve fuel is intended to ensure a safe landing at any aerodrome
when unforeseen occurrences may not permit safe completion of an operation as originally
planned. Guidance on flight planning including the circumstances that may require re-analysis,
adjustment and/or re-planning of the planned operation before take-off or en-route, is contained in
the Flight Planning and Fuel Management Manual (Doc 9976)
(c) The pilot-in-command shall request delay information from ATC when unanticipated
circumstances may result in landing at the destination aerodrome with less than the final reserve
fuel plus any fuel required to proceed to an alternate aerodrome or the fuel required to operate to
an isolated aerodrome.
(d) The pilot-in-command shall advise ATC of a minimum fuel state by declaring MINIMUM FUEL
when, having committed to land at a specific aerodrome, the pilot calculates that any change to
the existing clearance to that aerodrome may result in landing with less than planned final
reserve fuel.

Note 2: The delaration of MINIMUM FUEL informs ATC that all planned aerodrome options have
been reduced to a specific aerodrome of intended landing and any change to the existing
clearance may result in landing with less than planned final reserve fuel. This is not an
emergency situation but an indication that an emergency situation is possible should any
additional delay occur.

Note 3: Guidance on declaring minimum fuel is contained in the Flight Planning and Fuel
Management Manual (ICAO Doc 9976).
(e) The pilot in command shall declare a situation of fuel emergency by broadcasting MAYDAY
MAYDAY MAYDAY FUEL, when the calculated usable fuel predicted to be available on landing at
the nearest aerodrome where a safe landing can be made is less than the planned final reserve
fuel.
Note 4: The planned final reserve fuel refers to the value calculated in 121.280(c)(5) and is the
minimum amount of fuel required upon landing at any aerodrome.

OTAR.121.310 Use of oxygen
The operator shall ensure that:
(a) All flight crew members, engaged in performing duties essential to the safe operation of an
aircraft in flight, use supplemental oxygen continuously whenever the cabin pressure altitude
Overseas Territories Aviation Requirements 120 of 386