Aeronautical Information Manual

Explanation of Changes - Change 1

Effective: August 26, 2010

a. 1-1-19. Global Positioning System (GPS)
1-2-3. Use of Suitable Area Navigation (RNAV) Systems on Conventional Procedures and Routes
5-1-15. RNAV and RNP Operations
5-4-5. Instrument Approach Procedure Charts
5-5-16. RNAV and RNP Operations

This change adds guidance to remind pilots of the importance of using current databases.

b. 1-1-20. Wide Area Augmentation System (WAAS)
5-4-5. Instrument Approach Procedure Charts

This change explains the use of lines of minima for LPV and LP approaches.

c. 1-1-21. Ground Based Augmentation System (GBAS) Landing System (GLS)
5-4-5. Instrument Approach Procedure Charts

This change explains the operations and charting related to GBAS landing systems.

d. 2-1-2. Visual Glideslope Indicators

This change clarifies the distance from the runway threshold that VASI and PAPI provide safe obstruction clearance.

e. 2-3-15. Holding Position Markings

This change is added to improve upon the clarity of the depicted runway markings.

f. 4-3-18. Taxiing

This change clarifies procedures used by ATC personnel when assigning a runway for takeoff. ATC personnel are now required to issue explicit runway crossing clearances for all runway crossings.

g. 4-3-26. Operations at Uncontrolled Airports with Automated Surface Observation System (ASOS)/ Automated Weather System (AWOS)
4-4-6. Special VFR Clearances
5-1-3. Notice to Airmen (NOTAM) System
5-4-4. Advance Information on Instrument Approach
7-1-1. National Weather Service Aviation Products
7-1-12. Weather Observing Programs
7-1-17. Reporting Prevailing Visibility
7-1-31. International Civil Aviation Organization (ICAO) Weather Formats

This change updates paragraphs to include references to AWSS. It also updates the number of basic levels from four to eight and adds those references.

h. 5-1-5. Operational Information System (OIS)

This change will initiate generic guidance and refer queries for detailed information to the FAA's website for planned events and outages.

i. 5-1-1. Preflight Preparation
5-1-8. Flight Plan-IFR Flights
5-1-9. International Flight Plan (FAA Form 7233-4) - IFR Flights (For Domestic or International Flights)

This change is added to reflect guidance in other regulatory material.

j. 5-2-8. Instrument Departure Procedures (DP) - Obstacle Departure Procedures (ODP) and Standard Instrument Departures (SID)

This change is added to remove the word “minimum" in this first sentence because the intent is for it to apply to any altitude restriction that is charted with an “(ATC)" adjacent to it.

k. 5-4-5. Instrument Approach Procedure Charts

This change explains how the vertical path is computed when an RNAV system uses barometric altitude information from the aircraft's altimeter.

l. 5-4-9. Procedure Turn and Hold-in-Lieu of Procedure Turn

This change adds language to make it clear to pilots that the procedure turn or hold-in-lieu of procedure turn is not a required maneuver if they are cleared by ATC for a straight-in approach.

m. 7-1-1. National Weather Service Aviation Products
7-1-6. Inflight Aviation Weather Advisories
7-1-10. Inflight Weather Broadcasts
7-1-11. Flight Information Services (FIS)

The FAA is introducing a graphical AIRMET, referred to as G-AIRMET, which is one of two AIRMET options categorized as primary weather productsfor use in flight weather briefings.

n. 7-5-12. Light Amplification by Stimulated Emission of Radiation (Laser) Operations and Reporting Illumination of Aircraft
Appendix 3. Laser Beam Exposure Questionnaire

This change adds e-mail as a way to transmit laser reports. The questionnaire has also been updated.

o. 7-5-15. Avoid Flight in the Vicinity of Thermal Plumes (Smoke Stacks and Cooling Towers)

This change is added to explain to pilots the flight hazards that exist around thermal plumes and the operational procedures to mitigate these risks.

p. 10-1-3. Helicopter Approach Procedures to VFR Heliports

This change is added to harmonize with the language in FAA Order 8260.42B, Helicopter Global Positioning System (GPS) Nonprecision Approach Criteria.

q. Entire publication.

Editorial/format changes were made where necessary. Revision bars were not used because of the insignificant nature of these changes.


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