Minimum altitude requirements
• Vertical Separation:
• Lateral Separation:
- Track defined by 2 separate navaids, separation within
. 10nm either side of track
. 10nm beyond checkpoints
- Tracks not meeting previous criteria, separation within:
. 20nm either side of track
. 20nm beyond checkpoints
• En Route chart MOCA (Magenta color) provides:
Cold weather altitude corrections
• Corrections to MSA, aerodrome temperature :
• Corrections for altitudes at or below MSA:
RNAV (GNSS) / GPS approaches, meaning of temperature limitation
• Actual temperature above chart temperature limit:
- Fly either
. FINAL APP mode to LNAV/VNAV DA
. NAV-FPA to LNAV MDA
- Temperature corrections are not required
• Actual temperature below chart temperature limit:
Precautions to avoid mountain waves and associated turbulence
• If mountain wave conditions are suspected, be prepared for turbulence even in clear air
• On routes within 20nm of terrain having a maximum elevation exceeding 2,000ft, increase safe altitude by: Elevation of Terrain Windspeed in knots
0-30 31-50 51-70 over 70
2,000-8000 ft 500ft 1,000ft 1,500ft 2,000ft Above 8000 ft 1,000ft 1,500ft 2,000ft 2,500ft
Lowest circling minima for Dragonair aircraft
Highest of:
Precision Approach Light system guidance principle
Precision Approach Light System provides guidance from 300m before the runway threshold to 900m into the runway
Category X airport
• Airports that may not be nominated as a destination or alternate on the ATS Flight Plan but considered suitable for a non-scheduled landing
• Crew members may operate to Category X airports on the basis of self-briefing from appropriate charts
Example Subic Bay
Colors of airport taxiway lights
Planning stage, weather and fuel requirements for an isolated destination airport (no alternate within 1 hour 45 minutes flight time of the destination)
• Weather forecast from 30’ before to 2 hours after ETA:
• Fuel,
Alternate and Reserve Fuel is substituted by 2h holding fuel overhead destination at cruise consumption
• CFP, additional information provided:
NOTE: Use of this policy requires authorisation from Duty Operations Manager or Line Operations
Maximum distance from landing threshold where the ILS beam is protected (LOC/GS)
• Localiser:
• Glidepath:
- 10NM within 8° of RWY centreline
Alternate fuel
• Alternate fuel accounts for:
Minimum acceptable Rescue and Fire Fighting (RFF) level for the A320/321
• Minimum RFF category for A320 / 321
- Departure and destination 6(4) / 7(5)
- Alternate except ETOPS 4/5
(Takeoff, Destination, Critical Point Alternate)
- ETOPS Alternate 4
• Figures in brackets may be used for temporary downgrades not exceeding 72 hours
Planning stage, weather minima for En route alternates others than the ones nominated on the CFP for depressurization, Engine Out and ETOPS
1h before to 1h after Alternate ETA:
Planning stage, destination weather forecast indicates Low Visibility Operations in use
• Destination alternate must permit Cat 1 operations to protect against aircraft or airport systems downgrades
It means, airport with Non Precision Approach only is not acceptable!
Effect on operations of lightning warnings
• AMBER warning: Ramp activities continue as normal
• RED warning:
- Passenger Terminal Building:
. Passenger boarding/disembarkation is normal
. Cargo and baggage, loading/unloading is suspended
. Refueling operations are suspended
. Security staff operations are suspended
Planning stage, weather minima for destination alternate airport
• 1h before to 1h after Alternate ETA:
• Provided they are at or above the applicable landing minima, the following forecast weather conditions may be ignored:
Planning stage, weather minima for a Take off alternate airport
At time of intended use:
Planning stage, weather requirements for En-Route Alternate airports nominated on the CFP for mandatory fuel and ETOPS Alternate airports
1h before to 1h after Alternate ETA:
Planning stage, destination weather below landing minima or no forecast is available
• 2 destination alternate airports meeting the following requirements must be selected:
Planning stage, weather minima for destination airport
• At time of intended use:
• Visibility:
- Forecast visibility can be converted to an equivalent RVR using Part A
- LVO minima may be used if the aircraft is appropriately equipped, crew qualified, and LVO approach available
- Following weather conditions may be ignored:
. PROB Visibility of any value
. TEMPO Visibility of any value
. INTER Visibility of any value
• Cloud ceiling:
• Freezing Rain or Freezing Drizzle:
Reserve fuel
Depressurization fuel
• Sufficient fuel must be carried at any point on route to permit in case of loss of pressurization, failure of an engine or both:
• If route analysis shows that above requirement is limiting a Route Brief will be published to indicate required minimum Diversion Fuel
Total Fuel
Total fuel is the sum of:
Operational halt procedure
• IOC initiates the Operational Halt Procedure if:
• IOC shall immediately:
- Send ACARS message to the aircraft
“DO NOT TAKEOFF – LOADSHEET DATA ERROR”
- Call Station or ATC to stop the aircraft until data is verified and confirmed by a new Loadsheet