Northeast Severe Weather Avoidance Planning 2021 - REFERENCE GUIDE 3/31/2021 - TFM ...
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Northeast Severe
Weather Avoidance
Planning 2021
REFERENCE GUIDE
3/31/2021
NORTHEAST SEVERE WEATHER AVOIDANCE PLANNING 2020
Objective:
- Proactive Management of the NAS without Over Control
o Distribute volume then reduce volume prior to route
closure
o Anticipate airspace use and coordination –
TRANSCON, CAN Routes, VACAPEs, etc.
o GDPs (variable rates) & Structured Routes verse AFPs/GDPs & Structured
Routes
o Timely decision making and implementation
o Triggers driving action
o Exit Strategies
o Common Situational Awareness
Build on improvements:
o Advanced Planning
o Departure Coordinator(s)
o ZNY anticipated Route telcon
Note: It is acknowledged that the impacts of COVID-19 to the aviation
industry has been significant in 2020 & 2021. Traffic volume has been
at unprecedentedly low levels and will most likely not fully recover
this SWAP season. However, even at lower than normal traffic levels,
these techniques can be utilized to maximize the throughput of the
New York airports.
1
NORTHEAST SEVERE WEATHER AVOIDANCE PLANNING 2020
Contents
Special Emphasis, Advanced Planning ......................................................................................................... 3
Move NY Arrivals from ZOB to ZBW to support N90 Departures ............................................................... 6
Route Closing / Opening Process ........................................................................................................... 7
Cap DC Metro’s allow some NY departure deviations Q42 and J80 ........................................................ 8
J60 / J64 /Q62 Route Closing / Opening .......................................................................................... 10
J6 / J48 / J75 Route Closing / Opening ...................................................................................... 12
J209 / J174 / J79 Route Closing / Opening ................................................................................ 14
International Departure Planning ......................................................................................................... 16
Route Closing / Opening Process ......................................................................................................... 18
Route Closing / Opening Process – Pathfinders (continued) ..................................................... 19
SWAP Statement / Hotline............................................................................................................ 20
AZEZU Route ............................................................................................................................................. 21
SERMN Route(s) ........................................................................................................................................ 22
PHLYER Route(s) ...................................................................................................................................... 23
LIMBO Route(s) ......................................................................................................................................... 24
Departure Coordinator(s) DCC/ZNY, N90 TMU, Stakeholder ................................................................... 25
AFPs, Structured Routes, GS, GDP planning .............................................................................................. 26
Reducing the “Double hit” on NY departures to BOS .......................................................................... 27
Boundary-less Operational Plan (BOP) ...................................................................................................... 28
Moving select aircraft/destinations/fixes to improve overall flow ....................................................... 29
WAVEY Shuffle ..................................................................................................................................... 29
Reduce WHITE ....................................................................................................................................... 30
Reduce RBV ........................................................................................................................................... 30
High Altitude Exemptions ........................................................................................................................... 31
2
NORTHEAST SEVERE WEATHER AVOIDANCE PLANNING 2020 Focus Item – Special Emphasis, Advanced Planning Advanced Planning – Planning team will complete Draft SWAP 2020 Special Emphasis for Team, transition of the plan at ATCSCC D-1 eve update, mid update, D0 initial. Facility commitment process to print/display plan….. Trigger(s): N/A Responsible Facility: Advanced Planning / ATCSCC / Facilities Process/Considerations/Action 3
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NORTHEAST SEVERE WEATHER AVOIDANCE PLANNING 2020
Note: DCC Planner is responsible for initiating discussion with facilities 2 hours prior to
impacts.
TMI Planning will include analysis of arrival demand reduction to manage forecast departure
route impacts and surface congestion potential impacts. Facilities are encouraged to think
strategically when discussing the arrival demand considering turn times, departure bank
impacts from convective impacts to departure routes, and potential surface constraint issues.
4
NORTHEAST SEVERE WEATHER AVOIDANCE PLANNING 2020
Example: Planning for 7/22/19
5
NORTHEAST SEVERE WEATHER AVOIDANCE PLANNING 2020
Focus Item –
Move NY Arrivals from ZOB to ZBW to support N90 Departures
Advanced Planning: Anticipated gate impact and timing will be included the NY Departure
Plan. ZNY CWSU SWAP slide will be included.
Trigger(s):
- Day of Operation forecast Weather/Convection to impact ZOB arrival flow into N90.
- Actual Weather/Convection development impacting ZOB arrival flow into N90.
Responsible Facility: ATCSCC Planner / ZOB (trigger)
Process/Considerations/Action:
- Conference ZOB / ATCSCC / ZNY(N90) / ZBW approximately 2 hours prior to route
impact. Coordinate impact actions.
- Reduce/distribute incremental volume from N90 arrival flow(s) LIZZI/PENNS/LENDY
as Convection Impact develops – move to ZBW either tactically or via playbook
- Move specific city pairs ie. ORD, MDW, DTW, MSP…
- As routes close move flows to ZBW / (ZDC)
- Exit strategy – route reopening
New Playbook –
6
NORTHEAST SEVERE WEATHER AVOIDANCE PLANNING 2020
Focus Item –
Route Closing / Opening Process
Advanced Planning: Anticipated gate impact and timing will be included the NY Departure
Plan. ZNY CWSU SWAP & ZDC CWSU slide will be included.
Trigger(s): Day of Operation forecast Weather / Convection forecast
- Actual Weather/Convection development impacting departure routes
- -STOP message sent via NTML closing departure route due to convective weather
affecting route
Responsible Facility: All
Process/Considerations/Action:
As weather constraints are anticipated to impact a route(s):
- Use Weather Products – Short term forecast.
o NWS Gate Guide, CIWS, RAPT, etc.
- Distribute volume then reduce volume using appropriate TMIs
o CDR’s, Playbooks, Route advisories, Capping, DUCT, SERMN, etc
o Initiate Low MIT → High MIT → Route Stop → High MIT → Low MIT →
Normal operations
- When route closure occurs:
o Use Weather Products - CWIS, RAPT, etc. to estimate/anticipate decrease route
constraint time and location
o ZNY Route Coordinator request TWR/N90 TMU advise #1 aircraft to resume
using route and appropriate “High MIT”
Note: A line of convection along a front verse air mass cells growth and
dissipation will impact confidence level and appropriate MIT.
o ZNY Route Coordinator coordinate #1 aircraft with TWR/N90, appropriate
ARTCC and ATCSCC Departure Coordinator
o ZNY manages the process, coordination thru the TMU’s, ATCSCC Departure
Coordinator, NTML entries, etc.
o ATCSCC Route Coordinator – coordinates route priority/needs with surrounding
ARTCC’s & Stakeholders
7
NORTHEAST SEVERE WEATHER AVOIDANCE PLANNING 2020
Focus Item –
Cap DC Metro’s, allow NY departure deviations on Q42 and J80
Advanced Planning: Anticipated gate impact and timing will be included the NY Departure
Plan. ZNY CWSU SWAP & ZDC CWSU slide will be included.
Trigger(s):
- Day of Operation forecast Weather/Convection to impact ZNY/ZOB Q42/J80 departure
routes from N90.
- Actual Weather/Convection development impacting ZNY/ZOB Q42/J80 departure routes
from N90.
- - STOP message sent via NTML for Q42/J80 departures due to weather deviations
Responsible Facility: ATCSCC Planner / ZNY (trigger)
Process/Considerations/Action:
- Conference ZNY(N90) / ATCSCC / ZOB / ZDC approximately 2 hours prior to route
impact. Coordinate impact actions.
- Cap DC Metro’s AOB FL220, N90 airports filed altitudes, PHL @ X, allow some
deviations at both filed and capped altitudes
- DQO Tunnel West
- PHLYR West
- N90 sats – initiate CDRs
- As impact occurs – MIT, use CDRs, As routes close move flows to No J80, etc.
- Exit strategy – route reopening
8
NORTHEAST SEVERE WEATHER AVOIDANCE PLANNING 2020
DQO Tunnel West PHLYER West
Expect 100 / MORTY Props 60
Expect 230 / RAMAY/OTTTO Jets 80
Higher 220 from ZOB
No J80
9NORTHEAST SEVERE WEATHER AVOIDANCE PLANNING 2020
Focus Item –
J60 / J64 /Q62 Route Closing / Opening
Advanced Planning: Anticipated gate impact and timing will be included the NY Departure
Plan. ZNY CWSU SWAP slide will be included.
Trigger(s):
- Day of Operation forecast Weather/Convection to impact ZOB/ZNY/(N90) J60/J64/Q62
departure routes from N90.
- Actual Weather/Convection development impacting ZOB/ZNY/(N90) J60/J64/Q62
departure routes from N90.
Responsible Facility: ATCSCC Planner / ZNY (trigger)
Process/Considerations/Action:
- Conference ZNY(N90) / ATCSCC / ZOB approximately 2 hours prior to route impact.
Coordinate impact actions.
- Cap ZOB internal arrivals AOB FL280, others filed
- altitude DUCT North, DUCT West
- ZNY West Capping
- PHLYER West
- Use either J60 or J64 and allow some deviations
- As impact occurs – MIT, use of CDR’s, As routes close move flows to No J80, etc.
- Exit strategy – route reopening
10NORTHEAST SEVERE WEATHER AVOIDANCE PLANNING 2020
New York DUCT North New York DUCT West
N90 160 Expect FL220 / PSB
ZNY FL220
Higher after SLT
ZNY West Capping
Props 140
Jets 160
PHLYER West
Props 60
Jets 80
Expect FL220 from ZOB
11NORTHEAST SEVERE WEATHER AVOIDANCE PLANNING 2020
Focus Item –
J6 / J48 / J75 Route Closing / Opening
Advanced Planning: Anticipated gate impact and timing will be included the NY Departure
Plan. ZNY CWSU SWAP & ZDC CWSU slide will be included.
Trigger(s):
- Day of Operation forecast Weather/Convection to impact (ZID)/ZDC/ZNY/(N90)
J6/J48/J75 departure routes from N90.
- Actual Weather/Convection development impacting (ZID)/ZDC/ZNY J6/J48/J75
departure routes from N90.
Responsible Facility: ATCSCC Planner / ZDC (trigger)
Process/Considerations/Action:
- Conference ZNY(N90) / ATCSCC / ZDC approximately 2 hours prior to route impact.
Coordinate impact actions.
- DQO offloads Tunnel Southwest
- Cap DC Metro’s AOB FL320
- LIMBO West
- Move J6 traffic to J48, J75 to J174
- As impact occurs – MIT, use CDRs, As routes close move flows to No J6, No J48, No
J75, etc.
- Exit strategy – route reopening
12NORTHEAST SEVERE WEATHER AVOIDANCE PLANNING 2020
DQO Tunnel Southwest
Expect 100 / MORTY
Expect FL230 / RRSIN/KERRK/WALCE
PHLYER South 1 PHLYER South 2
Alt 60 & 80 Alt 60 & 80
LIMBO West
Expect 100 / ESL
13NORTHEAST SEVERE WEATHER AVOIDANCE PLANNING 2020
Focus item –
J209 / J174 / J79 Route Closing / Opening
Advanced Planning: Anticipated gate impact and timing will be included the NY Departure
Plan. ZNY CWSU SWAP & ZDC CWSU slide will be included.
Trigger(s):
- Day of Operation forecast Weather/Convection to impact ZDC/ZNY/(N90)
J209/J174/J79 departure routes from N90.
- Actual Weather/Convection development impacting ZDC/ZNY J209/J174/J79 departure
routes from N90.
Responsible Facility: ATCSCC Planner / ZDC (trigger)
Process/Considerations/Action:
- Conference ZNY(N90) / ATCSCC / ZDC approximately 2 hours prior to route impact.
Coordinate impact actions.
- Cap PHL OOD AOB FL340
- DQO offloads Tunnel Southwest
- Cap DC Metro’s AOB FL320
- LIMBO South
- As impact occurs – MIT, use CDRs, As routes close move flows to Northeast to Fla via
J6/J48/J75 etc.
- Exit strategy – route reopening
14NORTHEAST SEVERE WEATHER AVOIDANCE PLANNING 2020
DQO Tunnel Southwest
Expect 100 / MORTY
Expect FL230 / RRSIN/KERRK/WALCE
PHLYER South 1 PHLYER South 2
Alt 60 & 80 Alt 60 & 80
LIMBO South
Expect 120 / WEAVR
15NORTHEAST SEVERE WEATHER AVOIDANCE PLANNING 2020
Focus Item –
International Departure Planning
Advanced Planning: Anticipated gate impact and timing will be included the NY Departure
Plan. ZNY CWSU SWAP & ZDC CWSU slide will be included.
Trigger(s):
- Day of Operation forecast Weather/Convection to impact International Departures
IAD/PHL/EWR/JFK, etc.
- Actual Weather/Convection development impacting IAD/PHL/EWR/JFK, etc.
Responsible Facility: ATCSCC Planner / ZBW (trigger)
Process/Considerations/Action:
- Conference ZBW / ATCSCC / ZDC / ZNY approximately 2-4 hours prior to
International Departure route impact. Coordinate impact actions.
- Individual Airport anticipated flow IAD/PHL/EWR/JFK
- ZBW advisory – International Northeast Departures SWAP Statement
- New Playbooks
o ZBW NAT escape via HNK
o ZBW NAT escape via SYR
- PHL PTW
- EWR GAYLE
- ATL/CLT/BWI/IAD
- Exit strategy – route reopening
16NORTHEAST SEVERE WEATHER AVOIDANCE PLANNING 2020
ZBW NAT escape via HNK ZBW NAT escape via SYR
ZBW International SWAP Statement
THIS STATEMENT IS FOR ADVISORY PURPOSES ONLY. CUSTOMERS ARE ENCOURAGED TO FILE
PUBLISHED TRACK ROUTINGS AND ANTICIPATE THE SPECIFIED ALTERNATE ROUTINGS AS
WEATHER IMPACTS NORMAL ROUTES. PLEASE DO NOT FILE ALTERNATE ROUTES UNLESS
ADVISED.
PLANNED ALTERNATE DEPARTURE ROUTES:
IF GREKI IS NOT AVAILABLE ALL EWR/JFK DEPARTURES FILED VIA GREKI FILE VIA MERIT HFD PUT
BOS DIRECT (QUBIS/TAFFY/TOPPS/EBONY)
JFK: IF GREKI AND MERIT ARE NOT AVAILABLE FILE VIA BETTE ACK ALLEX DIRECT (OEP)
IF GREKI/MERIT/BETTE/HAPIE ARE NOT AVAILABLE FILE VIA GAYEL STOMP HNK ALB
DIRECT(QUBIS/TAFFY/TOPPS/EBONY) OR GAYEL STOMP HNK ALLEX DIRECT (OEP)
EWR: IF GREKI AND MERIT ARE NOT AVAILABLE FILE VIA ELVAE COL DIXIE POPPN ISLES JENYY
VITOL DIRECT (OEP)
IF GREKI/MERIT/ELVAE ARE NOT AVAILABLE FILE VIA GAYEL STOMP HNK ALB DIRECT
(QUBIS/TAFFY/TOPPS/EBONY) OR GAYEL STOMP HNK ALLEX DIRECT (OEP)
PHL: IF DITCH IS UNAVAILABLE FILE VIA
HNK/CFB DIRECT (QUBIS/TAFFY/TOPPS/EBONY/ALLEX) OR
HNK/CFB DIRECT BOS (TUSKY/BRADD/KANNI) OR HNK/CFB
DIRECT KANNI (OEP)
IAD/DCA: IF SWANN/AGARD UNAVAILABLE PLEASE FILE VIA
HNK/CFB DIRECT (QUBIS/TAFFY/TOPPS/EBONY/ALLEX) OR
HNK/CFB DIRECT BOS (TUSKY/BRADD/KANNI) OR HNK/CFB
DIRECT KANNI (OEP)
SYR/BTV DIRECT (QUBIS/TAFFY/TOPPS/EBONY/ALLEX) OR
SYR/BTV DIRECT (OEP)
17NORTHEAST SEVERE WEATHER AVOIDANCE PLANNING 2020
Focus Item –
Route Closing / Opening Process
Advanced Planning: Anticipated gate impact and timing will be included the NY Departure
Plan. ZNY CWSU SWAP & ZDC CWSU slide will be included.
Trigger(s): Day of Operation forecast Weather / Convection forecast
- Actual Weather/Convection development impacting departure routes
Responsible Facility: All
Process/Considerations/Action:
As weather constraints are anticipated to impact a route(s):
- Use Weather Products – Short term forecast.
o NWS Gate Guide, CIWS, RAPT, etc.
- Distribute volume then reduce volume using appropriate TMIs
o CDR’s, Playbooks, Route advisories, Capping, DUCT, SERMN, etc
o Initiate Low MIT → High MIT → Route Stop → High MIT → Low MIT →
Normal operations
- When route closure occurs:
o Use Weather Products - CWIS, RAPT, etc. to estimate/anticipate decrease route
constraint time and location
o ZNY Route Coordinator request TWR/N90 TMU advise #1 aircraft to resume
using route and appropriate “High MIT”
Note: A line of convection along a front verse air mass cells growth and
dissipation will impact confidence level and appropriate MIT.
o ZNY Route Coordinator coordinate #1 aircraft with TWR/N90, appropriate
ARTCC and ATCSCC Departure Coordinator
o ZNY manages the process, coordination thru the TMU’s, ATCSCC Departure
Coordinator, NTML entries, etc.
o ATCSCC Route Coordinator – coordinates route priority/needs with surrounding
ARTCC’s & Stakeholders
o
18NORTHEAST SEVERE WEATHER AVOIDANCE PLANNING 2020
Route Closing / Opening Process – Pathfinders (continued)
Responsible Facility: ATCSCC / ZNY / N90
Common Situational Awareness – Exit Strategies
Process/Considerations/Action:
- Use pathfinder process as a guideline, common operating practice.
- Process is an operating method / guidance / consideration, a variety of situations may
require adjustments.
Forecast for a line of convection will include a higher level of confidence then airmass
convection movement. TMU actions/decisions need to be adjusted based on confidence
and changing situations.
19NORTHEAST SEVERE WEATHER AVOIDANCE PLANNING 2020
Focus Item –
SWAP Statement / Hotline
Trigger(s):
- Hotline should be initiated prior to departure route impacts.
- Convective weather forecasted to impact departure and/or arrival routes within an enroute
facility to a point where it is anticipated that alternate routing (SWAP routes) will be used
for departing and/or arriving flights.
Responsible Facility: ZNY / ATCSCC
Process/Considerations/Action:
- See ZNY Hotline Guidelines
20Focus Item –
AZEZU Route
Advanced Planning: AZEZU route will be identified on the PERTI advance plan
Trigger(s):
- White volume and/or weather impacting J209/174 Responsible Facility
- - Forecasts (TCF, etc.) indicate that convective weather will impact east coast routes
through ZDC and operational impact can be reduced by redistributing volume to other
routes that are less impacted.
ATCSCC / ZNY / ZDC
Process/Considerations/Action:
- Stakeholder briefings have taken place
- When beneficial for stakeholders:
o Volume WHITE
o Weather J209 / J174 …
- Advisory will be published when AZEZU route will be beneficial
- Route needs to be filed – ATC is not aware of equipment (life rafts, etc.)
-
21NORTHEAST SEVERE WEATHER AVOIDANCE PLANNING 2020
Focus Item –
SERMN Route(s)
Advanced Planning: N90 Towers - SERMN routes will be identified on the PERTI
Trigger(s):
- Low altitude routes used when operationally beneficial for volume
and/or weather
- Departure delays starting to build at N90 airports due to departure gate impacts (MIT,
weather, etc.)
- - Forecasts (TCF, etc.) indicate that convective weather will impact departure gates and
operational impact can be reduced by removing volume from those affected departure
routes.
Responsible Facility: N90 / ATCSCC / ZNY
Process/Considerations/Action:
- SERMN routes are used to reduce enroute fix/route volume and distribute to lower Tower
enroute clearance (TEC) structure
- Coordination with appropriate terminal facilities
- SERMN routes published as recommended /xxZ expect required >xxZ
22NORTHEAST SEVERE WEATHER AVOIDANCE PLANNING 2020
Focus Item –
PHLYER Route(s)
Advanced Planning: Philadelphia Tower - PHLYER routes will be identified on the
PERTI advance plan
Trigger(s):
- Low altitude routes used when operationally beneficial for volume
and/or weather
- - Departure delays starting to build at PHL due to departure gate impacts (MIT, weather,
etc.)
- - Forecasts (TCF, etc.) indicate that convective weather will impact departure gates and
operational impact can be reduced by removing volume from those affected departure
routes.
Responsible Facility: ZDC / ATCSCC / PHL
Process/Considerations/Action:
- PHLYER routes are used to reduce enroute fix/route volume and distribute to lower
Tower enroute clearance (TEC) structure
- Coordination with appropriate terminal facilities
- PHLYER routes published as recommended /xxZ expect required >xxZ
23NORTHEAST SEVERE WEATHER AVOIDANCE PLANNING 2020
Focus Item –
LIMBO Route(s)
Advanced Planning: DC Metro Towers - PHLYER routes will be identified on the
PERTI advance plan
Trigger(s):
- Forecasts (TCF, etc.) indicate that convective weather will impact departure gates and
operational impact can be reduced by removing volume from those affected departure
routes or by removing DC Metro departures from affected routes in order to allow other
markets to flow in a more unrestricted manner.
Responsible Facility: ZDC / ATCSCC / PCT Process/Considerations/Action:
- LIMBO routes are used to reduce enroute fix/route volume and distribute to lower Tower
enroute clearance (TEC) structure
- Coordination with appropriate terminal facilities
- LIMBO routes published as recommended /xxZ expect required >xxZ
24NORTHEAST SEVERE WEATHER AVOIDANCE PLANNING 2020
Focus Item –
Departure Coordinator(s) DCC/ZNY, N90 TMU, Stakeholder
Advanced Planning: SWAP is identified on the PERTI advanced plan
Trigger(s): Anticipated SWAP implementation Responsible
Facility: ATCSCC / ZNY
Process/Considerations/Action:
- Severe Weather Departure Position will be operational approximately 4 hour prior to a
northeast severe weather event
- SVR Departure Position is the focal point for departure coordination
LOA attached
25NORTHEAST SEVERE WEATHER AVOIDANCE PLANNING 2020
Focus Item –
AFPs, Structured Routes, GS, GDP planning
Advanced Planning: SWAP is identified on the PERTI advanced plan
Trigger(s): - Significant areas of convective weather in ZDC, ZOB, and/or ZNY is forecasted to
heavily impact normal flows through the airspace or cause significant delays to outlying facilities.
Responsible Facility: ATCSCC
Process/Consideration/Action:
- See AFP Strategy of Use Doc
26NORTHEAST SEVERE WEATHER AVOIDANCE PLANNING 2020
Focus Item –
Reducing the “Double hit” on NY departures to BOS
Advanced Planning:
Trigger(s): Planned BOS GDP (Double hit of TBFM delay & GDP delay for N90 departures to
BOS. Exempt N90 airports from delay in BOS GDP) during a northeast SWAP event where there
will NOT be direct weather impact to BOS airport.
Responsible Facility: ATCSCC/ZBW
Process/Considerations/Action:
1. ATCSCC Exempt N90(JFK/LGA/EWR) from BOS GDP
ZBW/N90 Schedule into TBFM
2. Alternate Route
27NORTHEAST SEVERE WEATHER AVOIDANCE PLANNING 2020 Focus Item – Boundary-less Operational Plan (BOP) Advanced Planning: NA for PERTI advanced plan Trigger(s): ZDC need to reduce flows from ZNY Responsible Facility: ZDC / ZNY Process/Considerations/Action: ZNY (to ZDC) sectors relieved of MIT spacing requirement TMUs coordinate to provide reduced aircraft flow ie. Provide MIT to TWRs, ZOB, etc. See attached 28
NORTHEAST SEVERE WEATHER AVOIDANCE PLANNING 2020
Focus Item –
Moving select aircraft/destinations/fixes to improve overall flow
Advanced Planning: Anticipated gate impact and timing will be included the NY Departure
Plan. ZNY CWSU SWAP & ZDC CWSU slide will be included.
WAVEY Shuffle
Trigger(s): Volume/Weather dictates a need to segregate LGA and JFK
southbound traffic, JFK departure backlog
Responsible Facility: N90 / ZNY
Process/Considerations/Action:
JFK departure backlog
29Reduce WHITE
Trigger(s): Anticipated volume on WHITE J209
Responsible Facility: N90 / ZNY
Process/Considerations/Action:
Reduce RBV
Trigger(s): Anticipated (JFK) volume/weather constraint on RBV
Responsible Facility: N90 / ZNY
Process/Considerations/Action:
- When JFK volume/weather constraints are anticipated on RBV
30NORTHEAST SEVERE WEATHER AVOIDANCE PLANNING 2020
Focus Item –
High Altitude Exemptions
Advanced Planning:
Trigger(s):
Responsible Facility:
Process/Considerations/Action:
Exempt (N90) aircraft capable of FL410 and abv from structured route(s)
TCF Issued 15z for 23z(8hr) Actual 2230z
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