OM - A CHAPTER 8 Flashcards
List of Documents, forms and additional information to be carried onboard?
Certificate of Airworthiness
Airworthiness Review Certificate
Certificate of Registration
Operational Flight Plan
Load Form
Technical Log
In EFB:
Air Operator Certificate
Noise Certificate
Radio Licence
Third Party Insurance Certificate
OM-A 8.1.12
Commanders Responsibility?
Aircraft airworthy
Aircraft equipment, configuration and all calculations in accordance with MEL and CDL
Required documents onboard
(eg. Airworthiness Review Certificate Certificate of Registration Operational Flight Plan Load Form Technical Log)
Ground facilities & Services available and adequate
Fuel, Oil & Oxygen according to OM.
MSA, Aerodrome operating minima and Alternate Aerodromes are within planning regulations.
Weight within limits at Take Off Roll, comply with MSA /MFA
MSA - Minimum Sector Altitude
Safe Altitude around a Navigation station or Aerodrome.
Radius is 25 Nm, and may be valid for various sectors or approach.
RNAV Approach, MSA may be replaced by TAA (Terminal Arrival Altitude)
1000 ft obstacle clearance to intermediate Approach segment
MORA - Route MORA
MFAs on OFPs
Provide 1000 ft clearance for terrain up to 5000 ft and
2000 ft of clearance of terrain above 5000 ft.
20 Nm of route segment centreline
Minimum MFA on OFPs is 2000 ft
Minimum Grid Altitude - MGA
The Lowest Safe Altitude flown off-track.
1000 ft for terrain up to 6000 ft
2000 ft for terrain above 6000 ft
Lowest MGA is 2000 ft - can be omitted over Water.
Shown in 100s of feet
Low Altitude Temperature Correction
Applied when surface Temperature -10 C or below.
(unless otherwise specified on AD chart)
Add temperature correction to: To DA (except VNAV - has temperature limit) Non Precision Approach to Minimum Altitudes after passing the FAF
(OM - 8.1.1.3.1)
Pressure Correction
When lower than standard 1013 hp, 30 ft per hPa below 1013 hPa
Temperature Correction
True Altitude under ISA corrections
Temp. higher than ISA - True Altitude Higher than indicated
Temp. lower - True Altitude lower than indicated
Elevation of Aerodrome the elevator altimeter source.
When low temperature, pressure, watch out below.
Approved Aerodromes
Runway length performance Pavement strength Instrument Procedures ATC services Weather reporting Nav Aids Lighting
Rescue & Firefighting Service - RFFS
A320 - cat 6
A321 - cat 7
Cat 5 may be permitted at low volumes airports - OFP
Temporary downgrade - ATC, NOTAM, ATIS - 2 categories below aeroplane RFFS category
Alternates:
Non UK: Cat 4
UK AD: Cat 5
Commander may decide to land at an aerodrome regardless of RFFS category if it is considered safer to do so than divert.
Isolated Aerodrome
Fuel to fly for 2 hours are Cruise Consumption incl. Final Reserve above destination AD. (easyJet does not do this)
Suitable Aerodrome
AD adequate for the operation and
Meteorological conditions satisfy the planning minima for the expected landing time and
meet the Approach, Runway and Aircraft capabilities and Crew qualifications (MET conditions)
Weather Planning Minima:
Weather Reports and Forecasts for Destination & Alternates:
1 hour before and ending 1 hour after ETA.
Non - Precision & Circling Approaches shall take ceiling into consideration. (in addition to RVR / Visibility)
CMV / RVR conversion shall NOT be used at Planning stage.
Take-off Alternate
Perf / Met conditions makes it impossible to return to the departure Aerodrome.
Met. Conditions are suitable for return at departure AD, when they are above minima for the instrument Approach in use.
Wx reports at Take-off Alternate SHALL be at or above minima for instrument approach.
Limitation to one engine INOP or MEL, SHALL be taken into a account. (Cat 3 Single – Cat 3 A for 1 engine inop)
AD as Take Off Alternate shall be, 1 hour Still Air Flight time at ONE Engine INOP Cruising Speed. (MCT)
Max distance 320 Nm
Destination Planning: - 2 Alternates
2 Alternates required when:
- The weather reports or forecasts at destination are below the applicable planning minima
- No Meteorological information is available
- The Landing performance requirements cannot be assured at a destination aerodrome due to specific wind component or Runway state
Destination Planning: Alternates Planning Minima
CAT II / III – Planning Cat 1 RVR
OTS CAT II – Planning Cat 1 RVR
LTS CAT I – Planning Cat 1 RVR
CAT I – Planning NPA RVR/VIS & Ceiling at or above MDH
APV – NPA Minima
NPA – Planning NPA RVR / VIS + 1000 m & Ceiling shall be at or above MDH + 200 ft
Circling – Planning Circling
No Destination Alternate Procedure:
TO to LANDING, or replanning in flight, remaining flight time not exceed 6 hours.
2 Separate Runways available and usable and appropriate Weather Reports / Forecasts for AD.
Wx Report / Forecast, 1 hour before and after ETA, the Ceiling will be at least 2000 ft or Circling height + 500 ft, whichever is greater.
And visibility at least 5 km
Separate Runways, if one is blocked, it will not prevent the planned type of operations on the other runway. (Separate approach procedure / separate Nav Aid)
The fuel required is:
- Taxi Fuel.
- Trip Fuel.
- Contingency Fuel.
- Additional Fuel not less than the fuel necessary to fly for 15 minutes at 1500 ft (450 m) above aerodrome elevation in ISA.
- Final Reserve Fuel.
- Extra Fuel if required by the Commander.
Aerodrome Categories
Cat A Non Complex
Cat B – Complex – specific briefing, Audio Visual etc (CCI etc)
Cat B Restricted – Complex and threat levels, specific restrictions (CCI etc)
Cat C – Special Crew qualification required (Visit or training)
Take-off Minima
Reported RVR or Visibility equal or better than VIS / RVR required for Runway
Wx at Departure airport equal or better than Minima for Approach and Landing at that airport or suitable Take-off Alternate (planning minima)
When no Vis / RVR reported or no RVR reported, Commander can determine this visually.
Normal RVR 400 m – LVP not in force
LVP in force: 150 m RVR (multiple RVR) Edge and Centre lights.
125 m RVR – High intensity RWY Centreline lights 15 m or less and high intensity Edge lights 60 m or less.
A 90 m Visual segment available from Cockpit
CMV should not be used for Take off
Conversion Met Vis to RVR / CMV
RVR not in forecast, conversion may be required.
RVR/CMV not reported in TAF. Forecast Visibility shall be used (not RVR/CMV for planning)
In FLIGHT, Met Vis should be converted to RVR/CMV if no RVR reported.
Conversion not to be used when: (VIS to RVR/CMV)
- RVR available
- Calculating Take Off minima
- For RVR less than 800 m (after conversion)
Visual Approach minima:
2500 ft cloud Ceiling or Circling minimum if higher
5000 m Visibility
Company Minima
CAT 3B Company = NO DH
CAT 3B with RA = 25 ft RA
CAT 3A Company = 50 ft RA
When CAT 3B published, CAT 3A always allowed with minimum 200 m RVR & 50 ft RA
Fuel Policy
- Taxi Fuel
- Trip Fuel
- Contingency Fuel
- Alternate Fuel
- Additional Fuel
- Final Reserve Fuel
- Extra Fuel (if required by Commander)
Taxi Fuel
Engine Start, APU & Taxi. (Max Ramp weight may not be exceeded)
Trip Fuel
Take-off & Climb – full routing departure (SID)
Cruise including Step Climbs
Descent & Arrival – full Arrival procedure (STAR)
Approach & Landing at Destination
Contingency Fuel
Contingency fuel is for deviations between planned and actual operating conditions. (track, wind, weather, altitudes, unforeseen)
After Push-back / Engine start can use Contingency Fuel.
- If no Statistical Contingency Fuel (SCF) data available:
5% of Planned Trip Fuel &
5 minutes at holding speed at 1500 ft above the destination Aerodrome in Standard Conditions. - If Statistical Contingency Fuel data available:
95% coverage or 99% coverage based on operational factors and
An amount to fly 5 minutes at holding speed at 1500 ft above destination Aerodrome.
Statistical Contingency Fuel: eg Cont 95
95% of flights have used no more than the 95% SCF value. (eg only 1 in 20 have used more)
Planned Contingency Fuel must still be minimum of 5 mins in all cases.
Alternate Fuel
Fuel to reach Alternate Aerodrome
Missed Approach point, full MAProcedure to Climb, Cruise and Descent
With full Arrival at Alternate AD.
Approach and Landing
If 2 Alternates required, then fuel to the one that needs the most fuel.
Final Reserve Fuel
To Fly for 30 minutes at Holding Speed at 1500 ft above destination Alternate Aerodrome in Standard conditions or at Destination when no Alternate is required.
Minimum Additional Fuel
- Holding 15 minutes at 1500 ft above Aerodrome, when flight is operated without a destination alternate.
- Engine Failure or Loss of Pressurisation, at most critical point along route.
Descend and proceed to adequate / alternate AD
Hold there for 15 minutes at 1500 ft
Make Approach and Landing
(Can be calculated by OFP FRF divided by 2.
Extra Fuel
At discretion of Commander.
Should be calculated in terms of Endurance (Time) eg. 1000 kg = 30 minutes
Used when:
Thunderstorms
Destination Weather is forecast / reported close to Operational landing limits.
Unscheduled Runway closure (Snow, RWY treatment)
Crosswind / Contaminated Limits
ATC Delays
Additional Approaches at Destination
Icing Conditions en-route – Engine Anti Ice / Wing Anti Ice
Penalty of Extra Fuel is 3% extra fuel per hour of flight due to increased Aircraft weight.
Landing Assured
- No forecast Weather deterioration
- Single Failure of Ground or Airborne equipment can’t prevent landing.
(eg Cat 1 minima available at a Cat 2 or Cat 3)
Minimum Fuel Call
If any further change to current clearance would result in landing with Less than Final Reserve Fuel.
If it is determined that Fuel Landing will be less than Final Reserve Fuel, than declare Emergency Mayday
Reduced Contingency Fuel
If SCF data available:
Contingency can be reduced to 90% coverage – CONT90 and
Fly for 5 minutes at Holding Speed at 1500 ft above Destination Aerodrome
If SCF data NOT available, CONT Fuel can be reduced to the greater of:
3 % of the planned Trip Fuel and
5 minutes at Holding Speed at 1500 ft above Destination Aerodrome, providing the Enroute Alternate Fuel (ERA)
And
ERA Aerodrome within a circle Radius of 20% of the Total Flight Plan distance. The Centre on the planned Route at a distance of destination Aerodrome of 25% of the Total Flight plan distance or at least 20% of total Flight Plan distance plus 50 NM (the greater of the 2)
Oil Consumption
Should cover the Flight Time with Fuel + 15 minutes.
CEO: 9.5 & 0.5 quarter per hour
NEO: 10.6 & 0.45 quarter per hour
Zero Fuel Weight
Zero Fuel Weight
DOW + Traffic Load
(DOW excludes all usable fuel, but includes unusable fuel and catering etc)
Take of Weight
TOW
DOW + Traffic Load + Reserve Fuel + Trip Fuel
Landing Weight
DOW + Traffic Load + Reserve Fuel
Passenger and Baggage masses
Adult male: 93 kg
Adult female: 75 kg
Children (2-12 year old): 35 kg
Checked Baggage:
Domestic: 11 kg
EU: 13 kg
Carry on luggage : 5 kg
Technical Log Page & Daily Inspection
Daily inspection procedure, certified before midnight, but valid from 0001 UTC the next day, if the following has been adhered too:
Daily Inspection certified after last flight that calendar day and
Daily Inspection after 1800 UTC
It will then be valid for 47:58 hours, until 23.59 the following day.
Defect Procedure
Enter Defect in Tech Log Call MOC – advice Technical Documentation FCOM / FRM etc. Consult MEL / CDL If required raise ASR
Acceptable Deferred Defects (ADD)
Defects in Tech Log shall be cleared prior to next flight when possible.
If not
The defect is to be transferred to the Aircraft Status Report, if
1. Allowable deficiency specified in the MEL, or, if not in the MEL
2. Evaluated by an appropriate authorised engineer not being an airworthiness / safety item
Normally a Maintenance Action by Authorised Engineer.
Commander may defer a defect that does not require Maintenance Procedure after consultation with MOC.
Non-Deferrable Defects Away from Base
Defects not listed in the MEL
MOC contacted to establish extent of defect and action required.
MOC will seek suitably approved Part 145 with appropriate Rating, action will be taken to have defect repaired and certified.
If no approved Part 145 Maint Organ. is available, MOC will position a contracted Part 145 Maint Organ Staff.
Acceptable Deferred Defect Procedures – Level 1
If item in MEL / CDL, requires operational limitations (Cat 1, RVSM etc) or requires in flight Certification, it will be entered on Aircraft Status Report –
Technical Log pages and Item number. (do not abbreviate)
Level 1 defects with AMOS work order number / unique.
Must specify a limit for deferring rectification, if MEL / CDL, then MEL / CDL reference number, Repair interval and expiry date or other limiting criteria shall be stated.
Commanders Authority to Defer a Defect - Procedure A
When “DEFECT” entered, but no Engineering is available, and aircraft can continue within the MEL / CDL without any maintenance procedure, Commander is authorised to transfer the defect to ADD Level 1 using following procedure:
- Inform MOC that defect will be deferred by Commander.
- Entry in Action Taken – with MEL / CDL reference number, repair interval and ADD Level 1 AMOS work order number from MOC
- Record and Print name in the ACTION TAKEN column
- Transfer the defect to Aircraft Status Report and incl the TL page number
- Leave the COMPLETE Pink TL page at Departing Station and start Next Sector on a new TL page
ADD Level 2 (Acceptable Deferred Defect)
Defect does not affect Airworthiness (eg. Cabin dirty, carpets etc)
MEL Repair Interval A
No standard Interval / Time specified.
Can be in Days, Number of Flights, or Flight Hours
Starts Following Day 00.01 or First Flight after failure
MEL Repair Interval B
3 calendar days excl. day of Discovery.
example discovery 26.th of January, begins 27.th January at 00.01
MEL Repair Interval C
10 Calendar Days – starts at 00.01 day after discovery
MEL Repair Interval D
120 Days, excluding day of Discovery
Dispatch without Authorised Engineer Procedures
3 Procedures available – must contact MOC
1. Procedure A: No maintenance action required, by MEL to Flight.
- Procedure B: Flight Crew Authorisation
- Procedure C: Single Event Authorisation
Flight Crew Authorisation – Procedure B (FCA)
When Engineering cover not available, or only Limited Engineering available.
Commander may carry out engineering related tasks. Procedure B – MEL Items Preamble. Not require Specialist knowledge / tools or test equipment.
Contact MOC first.
1. Function checks from Cockpit / Flight Deck
2. Tripping / Resetting of CB’s (Ground only)
3. Accessing information on CFDS MAINT PAGES to relay to MOC
4. Visible Verification:
Closure of access Panels / Cowlings
Tyre Inspection guidance from MOC
Check for leaks
Only allowable for ONE SECTOR.
Tech Log after sector: Refer to TLP xxxxx(FCA) and repeat defect text.
Engineer much check on arrival at Destination
Cabin Defect Log
All defects that would affect Airworthiness must be transferred to the Aircraft Tech. Log Defects Report, referencing the Cabin Defects Log Page and item number.
Commander Sign Commanders Box, for items transferred to Tech Log
FOR INFO – Tech Log Entry
Items which does not require immediate engineering action.
Must inform MOC (is not an OPEN DEFECT)
Examples QRH System Resets, no need to contact MOC and ACTION TAKEN & CRS columns shall be crossed out.
Limited Bird-strike Inspections under MOC Guidance CANNOT be used if:
Dent or Crack to any structure, hydraulic, pneumatic or other systems
Engines
Radome
1 m upstream of Air Con Pack intake
1 m upstread of Pitot, Static, Angle of Attack probe
Unusual odours (Pax or Crew)
FOR INFO can be used for:
Transient indication which disappears
Cleanliness or General condition of Aircraft, Flight Deck or Cabin.
Further Reporting on an existing Deferred Defect at request of Maintenance
Must contact MOC, except Crew Reset QRH /FCOM
If MOC agrees, in Action Taken – Reviewed and Nil Defect Confirmed
MOC must clear all other FOR INFO’s, except Reset
Fuelling Procedures
Fuel Quantity required
Strobe Lights are NOT operated during fuelling
APU procedures followed
Consult Ground Handler / Refueller before starting APU
Correct procedure with Pax onboard