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12.3 SAMPLE NAT MNPS CHECK LIST
12.3.1 ICAO North Atlantic Working Groups composed of industry, ATC and state regulators have created the following sample checklist. It is provided as guidance and is not intended to replace an operator‟s oceanic checklist.. However, Operators without an oceanic checklist are encouraged to use this sample and tailor it to their specific needs and approvals. This checklist focuses on an orderly flow and ways to reduce oceanic errors. The detail of and the rationale for the proposed actions listed are described in the “Expanded Check List” which follows on. Operators should use an oceanic check list as part of their Safety Management System (SMS). Operators are also encouraged to study the “Oceanic Errors Safety Bulletin (OESB)”. The OESB can be found at www.paris.icao.int/.
Check list proposals
Flight planning
- Plotting Chart – plot route from coast out to coast in
- Equal Time Points (ETP) - plot
- Track message (current copy available for all crossings)
- Note nearest tracks on plotting chart
- Review possible navigation aids for accuracy check prior to coast out
Preflight
- Master Clock for all ETAs/ATAs
- Maintenance Log – check for any navigation/ communication/surveillance or RVSM issues
- RVSM
- Altimeter checks (tolerance)
- Wind shear or turbulence forecast
- Computer Flight Plan (CFP) vs ICAO Flight Plan (check routing, fuel load, times, groundspeeds)
- Dual Long Range NAV System (LRNS) for remote oceanic operations
- HF check (including SELCAL)
- Confirm Present Position coordinates (best source)
- Master CFP (symbols: O, V, \, X)
- LRNS programming
- Check currency and software version
- Independent verification
- Check expanded coordinates of waypoints
- Track and distance check (+ 2o and + 2 NM)
- Upload winds, if applicable
- Groundspeed check
NORTH ATLANTIC MNPSA OPERATIONS MANUAL CHAPTER 12
NAT MNPS 72 Edition 2009
Taxi and prior to take-off
- Groundspeed check
- Present Position check
Climb out
- Transition altitude – set altimeters to 29.92 in (1013.2 hPa)
- Manually compute ETAs above FL180
Prior to oceanic entry
- Gross error accuracy check – record results
- HF check, if not done during pre-flight
- Log on to CPDLC or ADS 15 to 45 minutes prior, if equipped
- Obtain oceanic clearance from appropriate clearance delivery
- Confirm and maintain correct Flight Level at oceanic boundary
- Confirm Flight Level, Mach and Route for crossing
- Advise ATC When Able Higher (WAH)
- Ensure aircraft performance capabilities for maintaining assigned altitude/assigned Mach
- Reclearance – update LRNS, CFP and plotting chart
- Check track and distance for new route
- Altimeter checks - record readings
- Compass heading check – record
After oceanic entry
- Squawk 2000 – 30 minutes after entry, if applicable
- Maintain assigned Mach, if applicable
- VHF radios-set to interplane and guard frequency
- Strategic Lateral Offset Procedures (SLOP) - SOP
- Hourly altimeter checks
Approaching Waypoints
- Confirm next latitude/longitude
Overhead waypoints
- Confirm aircraft transitions to next waypoint
- Check track and distance against Master CFP
- Confirm time to next waypoint
- Note: 3-minute or more change requires ATC notification
- Position report - fuel
10-minute plot (appr. 2° of longitude after waypoint)
- Record time and latitude/longitude on plotting chart – non steering LRNS
Midpoint
- Midway between waypoints compare winds from CFP, LRNS and upper millibar wind charts
- Confirm time to next waypoint
Coast in
- Compare ground based NAVAID to LRNS
- Remove Strategic Lateral Offset
- Confirm routing after oceanic exit
Descent
- Transition level - set altimeters to QNH
Destination/block in
- Navigation Accuracy Check
- RVSM write-ups
NORTH ATLANTIC MNPSA OPERATIONS MANUAL CHAPTER 12
NAT MNPS 73 Edition 2009
Other issues
1. Contingencies
(a) Published Weather Deviation Procedure
(b) 15 NM offset (formerly 30NM in the NAT, 25NM in the Pacific)
(c) Lost Comm/NAV Procedures
2. ETOPS
3. Weather – Destination/Alternate(s) Airport(s)
4. Data Link Contingency Procedures
5. Dead Reckoning (DR)
6. GPS – RAIM/FDE Requirements
Expanded checklist
12.3.2 The detail of the check items listed above and the rationale for their inclusion follow.
Flight planning
Plotting Chart
A plotting chart of appropriate scale should be used for all remote oceanic operations. This includes using a plotting chart for published oceanic routes and tracks. ICAO groups who review oceanic errors have determined that the routine use of a plotting chart is an excellent aid to reduce lateral errors. A plotting chart can also serve as a critical aid in case of partial or total navigation failure. It should be noted that the pilot should read from the plotting chart back to the master CFP when verifying data. To read from the Master CFP to the plotting chart is a human factor‟s issue that has lead to errors based on seeing what we expect to see
　
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