Transcript Precision Obstacle Free Zone (POFZ) Implementation Airport Obstructions

Airport Obstructions
Standards Committee
FAA Broadcast On
Precision Obstacle Free
Zone (POFZ)
Implementation
Presented to:
FAA field personnel
By:
AOSC
Date:
February 17, 2006
Federal Aviation
Administration
Agenda
• Introduction
• Broadcast Objectives
• AOSC Background
• Overview of POFZ
• POFZ Examples
• ARC-1 Memo to RAPTs
• Frequently Asked Questions
• Questions & Answers
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Broadcast Objectives
• Develop common understanding of POFZ
requirements
• Provide clarifying guidance to regional
teams
• Discuss associated implementation issues
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AOSC Background
• Chartered May 2003
• The AOSC works across FAA lines of
business to transform outdated,
inconsistent obstruction standards
practices to future policy that optimally
balances operational safety, effectiveness,
and economic benefit
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AOSC Steering Group
• Reports to Deputy Administrator, ADA-1
• AOSC Steering Group Membership
–
–
–
–
Ruth Leverenz, ARC-1
Catherine Lang, ARP-1
Russ Chew, ATO-1
Nick Sabatini, AVS-1
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AOSC Decision Documents
• DD01 - POFA and Runway Separation, dated
12/18/03
• DD02 - 40:1 Departure Surface, dated 9/13/04
• DD03 - Atlanta End-Around Taxiway (Departure
Only), dated 7/12/04
• DD04 - Runway / Parallel Taxiway Separation
Standards, dated 03/21/05
• DD05 - Airport Traffic Control Tower Interim Siting
Guidance, dated 06/08/05
• DD06 - Dallas / Fort Worth (DFW) End-Around
Taxiway System, dated 06/08/05
www.aosc.faa.gov
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POFZ Introduction
POFZ protects the area of
short final area during very
low ceilings (<250’ feet)
and or visibilities (<3/4 Sm
or < 4000’ RVR)
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P
O
F
Z
TERPS
34:1 area
400’
Final Approach
“W” Surface
400’
200’
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POFZ Applicability
 The requirement to clear the POFZ
applies when an aircraft on a vertically
guided final approach is within 2 nautical
miles of the runway threshold and the
reported ceiling is below 250 feet and/or
visibility less than ¾ SM (or runway
visual range below 4,000 feet).
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POFZ Applicability (Cont’d)
 The POFZ is considered clear even if the
wing of the aircraft holding on a taxiway
waiting for runway clearance penetrates
the POFZ; however, neither the fuselage
nor the tail may infringe on the POFZ.
 If the POFZ is not clear, the MINIMUM
authorized height above touchdown
(HAT) and visibility is 250 feet and ¾
statute mile (SM).
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POFZ Compliance
• In the approved AOSC Decision Document
#01, the requirement was set for the POFZ
guidance to be applied uniformly to all
airports nationally by January 1, 2007
• It was further noted that “any airport that
fails to meet the POFZ guidance by that date
will not have its procedures approved at
their next subsequent biennial review”.
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POFZ Examples
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POFZ
ILS Critical
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•T
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ARC-1 Memo to RAPTs (12/16/05)
• Less than a year remains before the POFZ
implementation deadline
• Help is needed to ensure that implementation
strategies are developed and the necessary
actions are taken at any affected airports.
– Implementation oversight by the Region is
critical to successful implementation
– Regional Airspace Procedures Team
(RAPT) support is needed
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ARC-1 Memo to RAPTs (12/16/05) Cont.
• Specifically, the AOSC requested (by February 28, 2006)
the RAPT to:
– Review the requirements outlined in AOSC Decision
Document #01 (attached) to keep the POFZ clear under
the specified conditions and determine the appropriate
method of compliance for each runway end with a
current or near-term planned precision approach.
– Identify the locations where additional
markings/signage are needed and a target date for
completion
• Follow-up by the RAPT toward the end of 2006 may also
be needed to ensure that the necessary actions are
completed by the January 1, 2007 deadline.
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POFZ Reference Material
• AOSC Decision Document #01
• Advisory Circular 150/5340-18D “Standards for Airport
Sign Systems”
• Advisory Circular 150/5340-1J, “Standards for Airport
Markings”
• Airport Certification Program Policy and Guidance,
Policy #88
• FAA Order 7110.65R, “Air Traffic Control” (Section 3-7-6)
• FAA Order 7210.3R, “Facility Operation and
Administration” (Section 10-1-12)
• ATO training briefing
• Aeronautical Information Manual (Section 5-4-20b)
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Frequently Asked Questions
• Does POFZ apply to GPS WAAS approaches?
– The POFZ applies to any approach with ceiling
below 250 feet and/or visibility below 3/4 of a statute
mile or below 4,000 RVR.
• Does POFZ apply at military airports?
– The POFZ applies at joint-use facilities.
• How do we determine the 250 foot ceiling requirement?
– The reportable values from appropriate weather
sources should be used to determine ceiling height.
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Frequently Asked Questions
• How do we apply POFZ at non-towered airports or
towers that have limited hours?
– Pilots will be notified of POFZ requirements at all
airports (including non-towered airports) through
the Aeronautical Information Manual (AIM). Hold
lines should be placed at the most conservative
location to protect both the POFZ and the ILS
critical area. Pilots are required to understand and
comply with these markings.
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Frequently Asked Questions
• Who will fund modifications to the airport environment
(marking, signage, concrete)?
– ARP, working with the sponsor, should be
developing funding plans for the necessary
modifications. However any extensive work
requiring multi-year funding should be reported
though the RAPT to the AOSC.
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Frequently Asked Questions
• Can the implementation date be deferred?
– Any requests for deferral will be considered at the
AOSC executive steering group level).
– Every effort needs to be made to meet the
deadline and each RAPT should report
implementation concerns as soon as possible.
• If an airport is not able to comply by 1/1/07, is it an
option to increase the published minima to 250 feet
and ¾ statute mile?
– Yes, that is an option.
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Frequently Asked Questions
• Are vehicles allowed to penetrate the POFZ when the
POFZ is active?
– The POFZ should be protected from all obstacles.
The only exception is a wing of a taxiing aircraft.
This can be enforced by a hold sign on a road or
other agreement with the airport operator
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Additional
Questions & Answers
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