AC 90-80B

Historical

Advisory circular · Approval of Offshore Standard Approach Procedures, Airborne Radar Approaches, and Helicopter En Route Descent Areas

A newer version is currentThis is a historical version. AC 90-80C CHG 1 Ed Update is the version in force, approved March 21, 2025.
Approved
April 12, 1992
Last reviewed
January 18, 2001
Cancels
AC90-80A
Cancelled by
AC90-80C
Family
AC 90-80 · 5 versions
Revision
B
14 CFR parts
27, 29, 43, 91, 135

Guidance, not mandatory unless a rule or AD requires it. DRS record last changed November 21, 2025.

Show pages 37–48
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Appendix 4 APPENDIX 4. SAMPLE TRAINING PROGRAM

FOR OSAP, ARA, OR HEDA General. Operators are required to establish and maintain an approved training program appropriate to their operations before final approval of the special instrument procedure. Anyone requesting authorization to use an OSAP, ARA, or HEDA in IFR flight operations must train each flight crewmember on the following subjects: (The abbreviations of procedures enclosed in brackets [ ] indicate application only to that type of procedure.)

a. Basic Airborne Radar Principles and Operation. (Ground School 5 hours, Equipment Operation 1 Hour)

(1) Theory of Operation.

(a) Terminology.

(b) Block diagrams (P-40/50, BDX 1300/1400, etc.).

(2) Interpretation of Radar Returns.

(a) Primary.

(b) Secondary.

(c) False return, clutter, anomalies.

(d) Enhancement devices: beacons/reflectors.

(e) [ARA] Correlation of ground photos/maps with radar scope pictures, and identification of clusters/targets. (Ground School 8 hours)

(3) Equipment Limitations.

(a) Effects of precipitation.

(b) Effects of sea state and wave height.

(4) Detecting and Reporting Equipment Malfunctions.

(5) Emergency Procedures.

b. [OSAP and HEDA] GPS or LORAN C Principles and Operation. (Ground School 2 hours, Equipment Operation 3 Hours.)

(1) Introduction and Basic Principles.

(2) Controls, Indicators, and Display Functions.

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Appendix 4

(a) Display unit and functions.

(b) Data selector switch, controls, and indicators.

(c) Course deviation indicator.

(d) Receiver computer unit.

(3) Operating Procedures.

(a) General.

(b) Preflight and operational checks.

(c) Self-test.

(d) Initial present position entry.

(e) Magnetic variation entry.

(f) Area Navigation (RNAV) using waypoints.

(g) Leg change entry.

(h) Offset Track - Entry and steering.

(i) [LORAN C] Area calibration procedures.

(j) User defined waypoints.

(4) Identifying and Correcting Operational problems.

c. OSAP, ARA, or HEDA Procedures. (Ground School 2 Hours)

(1) Definitions.

(2) Limitations.

(3) Minimums.

(4) Weather Requirements.

(5) Equipment Requirements.

(6) [OSAP or ARA] Approach Target Identification.

(7) [OSAP] FAP Identification and Verification.

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Appendix 4

(8) Verification and Placement of the MAP.

(9) Final Approach Course.

(10) [OSAP] Course Adjustment to 0.5 NM Offset.

(11) [OSAP] Decision Point Altitude.

(a) Verification of equipment accuracy at DPA.

(b) Verification of minimum horizontal obstacle clearance.

(c) Using the lowest appropriate radar scale.

(12) Missed Approach.

(13) Crew Coordination, Duties, and Responsibilities.

(a) Before final approach segment.

(b) During final approach segment.

(c) [OSAP or ARA] After visual reference is established with the approach target.

(d) [OSAP or ARA] When visual reference is lost while maneuvering to the landing site.

(e) [OSAP or ARA] Upon reaching the MAP without visual reference with the approach target.

(f) [HEDA] Upon reaching the HEDA coordinates without establishing VFR conditions.

(g) [HEDA] When VFR conditions cannot be maintained while maneuvering to the landing site.

d. Flight Training. (VFR conditions 3 Hours)

(1) All assigned pilots and radar operators must complete as many trips over a route terminating in an OSAP, ARA, or HEDA under the supervision of an instructor or check airmen, as may be necessary to:

(a) Ensure their competency in the use of the equipment,

(b) Enable certification of their proficiency in the system,

(2) Recurrent training for pilots and radar operators is required annually.

e. Currency Requirements. A flight proficiency check is required annually.

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Appendix 4

f. Records.

(1) A method of maintaining flight crewmember training records must be approved by the POI prior to authorizing OSAP, ARA, or HEDA operations.

(2) Appropriate training and certification records will be maintained by each operator and shall be presented for inspection on request of the FAA.

NOTE 1: The ground school and flight-hours are for illustrative purposes only. POI's must determine, with their operators, an appropriate number of hours based on the operator's environment, experience, procedures, and equipment. POI's are directed by policy which prohibits approving any initial training program with less than a specific number of ground and flight training hours.

NOTE 2: Flight training requirements may be expressed in numbers of approaches rather than in numbers of flight-hours.

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Appendix 5 APPENDIX 5. SAMPLE OFFSHORE INSTRUMENT CHARTS FIGURE 5-1. SAMPLE DELTA 30°° OSAP FIGURE 5-2. SAMPLE PARALLEL OFFSET OSAP FIGURE 5-3. SAMPLE ARA CHART FOR SINGLE PLATFORM FIGURE 5-4. SAMPLE ARA CHART FOR PLATFORM CLUSTER FIGURE 5-5. SAMPLE HEDA CHART

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Appendix 5 APPENDIX 5. SAMPLE OFFSHORE INSTRUMENT CHARTS Figure 5-1. SAMPLE DELTA 30°° OSAP

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Appendix 5 APPENDIX 5. SAMPLE OFFSHORE INSTRUMENT CHARTS Figure 5-2. SAMPLE PARALLEL OFFSET OSAP

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Appendix 5 APPENDIX 5. SAMPLE OFFSHORE INSTRUMENT CHARTS Figure 5-3. SAMPLE ARA CHART FOR SINGLE PLATFORM

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Appendix 5 APPENDIX 5. SAMPLE OFFSHORE INSTRUMENT CHARTS Figure 5-4. SAMPLE ARA CHART FOR PLATFORM CLUSTER.

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Appendix 5 APPENDIX 5. SAMPLE OFFSHORE INSTRUMENT CHARTS Figure 5-5. SAMPLE HEDA CHART.