BY ORDER OF THE COMMANDER
AIR FORCE SPACE COMMAND

"Short Title of Publication Supplemented, i.e., AFI37-160 and AFSPC Supplement Number, i.e., AFSPC1 - Place No Spaces In Title" \* MERGEFORMAT

AFI13-203AFSPC1

"Date of Supplement - Spell Month Out Completely" \* MERGEFORMAT

23 February 1996

"Series Title"

Space, Missile, Command, and Control

"Long Title - Type In All Capital Letters"

AIR TRAFFIC CONTROL

AFI13-203, 1 Nov 95, is supplemented as follows and applies to AFSPC subordinate units with air traffic control (ATC) responsibilities. It does not apply to Air Force Reserve nor Air National Guard units. It directs management of AFSPC air traffic systems, personnel, and facilities. The reporting requirement in this directive is exempt from licensing in accordance with paragraph 2.11.12 of AFI 37-124, The Information Collections and Reports Management Program; Controlling Internal, Public, and Interagency Air Force Information Collections.

SUMMARY OF REVISIONS
This revision aligns this supplement with AFI 13-203. Clarifies the use of personnel in authorized positions and their responsibilities, clarifies facility closure requirements, specifies minimum facility equipment checks for proper operation, requires a copy of flight inspection reports be forwarded to headquarters, outlines policy for correcting snow effects on ILS equipment, clarifies the use of non-ATC devices in facilities, establishes procedures for submitting a requirement for expanded use of the (Bright Radar Indicator Tower Equipment) BRITE/DBRITE, specifies guidelines for reduced runway separation approval, requires a copy of training review board minutes be forwarded to headquarters, establishes how long to retain certification evaluations, clarifies Air Traffic Control Training Device (ATCTD) usage, clarifies evaluation documentation requirements, requires notification from units of aircraft mishaps and Hazardous Air Traffic Reports (HATRs), requires units to conduct local coordination prior to submission of changes to ATC missions.

1.1.1.2.22(Added). Develop an LOP for reporting interruptions and malfunctions of Air Traffic Control and Landing System (ATCALS) to include response of maintenance personnel.

1.1.3. (Thule AB only) The 1C191 assigned shall function as the Complex Chief Controller and shall perform the duties of the AOF/CC in his/her absence. The Complex Chief Controller shall be facility rated in both facilities within 3 months of arrival.

1.1.3.2.1.1. Chief controllers shall establish proficiency requirements in an operating instruction.

1.1.5.2. Units not possessing a Unit Manning Document (UMD) position for Chief, Air Traffic Control Training (CATCT) and/or Chief, Standardization and Evaluation (CSE), may appoint one individual meeting the qualifications of CSE.

1.2.1. Each unit must have at least two persons qualified to perform as a Terminal Instrument Procedures Specialist (TERPS) NCO (Thule AB excluded).

1.2.1.2.20(Added). Coordinate all TERPS issues with HQ AETC/XOS and provide a courtesy copy to HQ AFSPC/DOOH.

1.5. Notify HQ AFSPC/DOOH when staffing operations with a single 7-level on other than midshift (Thule AB excluded). When staffing will not support mission requirements and a curtailment of services is necessary, notify the senior operational commander and HQ AFSPC/DOOH as soon as possible.

1.10(Added). Operating Positions. Chief controllers must describe, in an operating instruction, the duties and responsibilities of any operating position(s) outside those of a standard control tower or radar approach control.

2.1. Notify HQ AFSPC/DOOH via telephone of wing-approved closures of 72 hours or less. Planned closures exceeding 72 hours require MAJCOM approval and must be submitted by the installation commander or designated representative to HQ AFSPC/DOOH at least 7 days prior to the proposed closure date.

2.2. All facility equipment shall be checked during the first shift of the day and essential equipment at the beginning of each shift.

2.26.3. Forward a copy of the flight inspection report to HQ AFSPC/DOOH.

2.26.5(Added). Policy for Correcting Snow Effects on ILS Glide Slopes:

2.26.5.1. Theory. The Instrument Landing System (ILS) glide slope depends on a smooth level ground plane to properly develop the signal. Three basic antenna configurations compensate for ground plane irregularities: null reference (NR), capture effect (CE), and sideband-reference (SBR). Snow accumulation has the general effect of raising the ground plane which causes the glide angle to increase. On NR and CE configurations, the glide slope angle can theoretically increase 0.08 to 0.1 degree per foot of snow for glide angles of 2.5 and 3.0 degrees, respectively. On SBR systems, the glide angle can increase from 0.16 to 0.22 degree per foot of snow, dependent upon water content, drifting aspects, etc. Under certain rare snow conditions, the angle may slightly decrease on SBR configurations. The Near Field Monitor (NFM) is more sensitive to snow accumulation and will alarm and remove the glide slope from service long before affecting the glide angle unless using an elevated NFM counterpoise.

2.26.5.2. NR and CE Policy. Remove the glide slope from service when the NFM alarms during or after snow or ice conditions and the facility with the Remote Status Indicator (RSI) is unable to clear the alarm.

2.26.5.2.1. Notify Base Operations of snow or ice accumulations around antennas, field detectors, the NFM reflection area. Remove snow or ice from antennas, field detectors, and the NFM reflection area to clear the NFM alarm. The NFM reflection area is that trapezoid area 50-feet wide at the ILS glide slope mast expanding to 87.5 feet wide at the NFM.

2.26.5.2.2. The far field glide slope reflection area is that trapezoid area 87.5 feet wide at the NFM to 200 feet wide, 1,000 feet (1,200 feet for glide slope angles less than three degrees) from the glide slope mast in the direction of the middle marker. If this area does not contain abrupt snow banks or drifts, and:

2.26.5.2.2.1. The snow accumulation is less than 24 inches and personnel clear the alarm, return the facility to normal service.

2.26.5.2.2.2. The snow accumulation is 24 inches or greater in the far field, request a special flight inspection. The glide slope may remain in service, pending the flight inspection, if personnel clear the monitor alarm and a local aircraft makes a satisfactory flyability check. The flyability check should determine acceptability of the rate of descent and smoothness of the glide slope during an ILS approach. Monitor with PAR, if available, to evaluate the acceptability of the glide slope. The special flight inspection must verify glide slope angle and structure. If no problems result, other than a high glide slope angle, then the glide slope may remain in service at the discretion of the senior operational commander. Publish a NOTAM stating to expect ILS glide slope angle to be higher than published due to snow accumulation.

2.26.5.2.2.3. If there are additional alarms or added snow accumulation (total of 30 inches or more), then 1.26.5.2.2.2 above applies.

2.26.5.3. SBR Policy. If the NFM alarms during or after snow or ice accumulation, or if snow accumulates in the glide slope reflection area to one foot or more, remove the glide slope from service.

2.26.5.3.1. Remove snow and ice from antennas, field detectors, and the NFM counterpoise.

2.26.5.3.2. The far field glide slope reflection area is the trapezoid area 87.5 feet wide at the NFM to 200 feet wide, 800 feet (1,000 feet for glide slope angles less than three degrees) from the glide slope mast in the direction of the middle marker. If this area does not contain abrupt snow banks or drifts, and:

2.26.5.3.2.1. The snow accumulation is less than 12 inches and personnel clear the alarm, return the facility to normal service.

2.26.5.3.2.2. The snow accumulation is 12 inches or greater in the far field area, request a special flight inspection. The glide slope may remain in service, pending the flight inspection, if personnel clear the monitor alarm and a local aircraft makes a satisfactory flyability check. The flyability check should determine the acceptability of the rate of descent and smoothness of the glide slope during an ILS approach. Monitor with PAR, if available, to evaluate the acceptability of the glide slope. The special flight inspection must verify glide slope angle and structure. If no problems result, other than a high glide angle, the glide slope may remain in service at the discretion of the senior operational commander. Publish a NOTAM stating ILS glide slope angle higher than published due to snow accumulation.

2.26.5.3.2.3. If there are additional alarms or added snow accumulation (18 inches or more), then 1.26.5.3.2.2 above applies and a flyability check and special flight inspection must be accomplished.

2.26.5.4. Drifting Effects. When abrupt snow banks or drifts exist in the far field, they could affect glide slope structure. Under these conditions, even when the snow depth is less than prescribed limits, conduct a flyability check before continuing operation of the glide slope. Request a special flight inspection or remove/compress the snow in the far field if results of the flyability check are unacceptable.

2.26.5.5. Increased Glide Slope Angle or Unacceptable Flyability. If increased glide slope angle or flyability is unacceptable, the senior operational commander must have snow removed or compressed in the far field.

2.26.5.6. Additional Caution. Complete any snow removal in the far field without developing abrupt snow banks.

2.29(Added). Non-Air Traffic Control (ATC) Devices. Televisions and radios are not permitted in IFR control rooms or tower cabs.

3.3. Personnel operating on or near the active runway will have direct two-way radio contact with the control tower or have an escort with this capability.

3.5. All requests for expanded use of the BRITE/DBRITE radar (radar service from the tower) will include a concept of operation and draft LOP describing operation of equipment, coordination, communications, back-up power considerations, and staffing.

5.5. Forward requests for Reduced Runway Separation (RRS) to HQ AFSPC/DOOH for approval.

6.2. Send Controller Development Program (CDP) OIs to HQ AFSPC/DOOH for review prior to publication.

6.8. Nonradar Training Program. (Thule AB/Patrick AFB). Units will use the ATCTD to conduct nonradar qualification training.

6.12. Recurring Training:

6.12.1. Snow Control Training (Thule AB/Malmstrom AFB). Conduct training approximately 45 days before the historical first snow. Ensure controllers are trained on items for assigned facility.

6.12.2. Nonradar Control Problems. (Thule AB/Patrick AFB). Units will use the ATCTD to conduct monthly nonradar training.

6.16.Training Review Board. Forward a copy of training review board minutes to HQ AFSPC/DOOH within five days after publishing. An airfield management training representative should participate in the monthly training review board.

6.18.3. Certification Evaluations. When a controller is facility rated, remove certification evaluations for all positions incorporated in the facility rating.

8.2. Evaluation documentation will contain as a minimum: name, date(s) of evaluation, type certification (position or facility), results of written evaluation, amount/complexity of traffic, simulator usage, if any, areas requiring review training, and results of evaluation (pass/fail). As a minimum, the evaluation will be reviewed and signed by the evaluator, trainee, trainer and CCTLR. If review training is required, it will be documented on the evaluation and reviewed/signed by the trainee, trainer and CCTLR.

10.2. Include in request for waiver a narrative describing the problem and explanation of waiver impact on the problem.

10.5. Forward a draft of each Memorandum of Understanding (MOU), Memorandum of Agreement (MOA), Letter of Agreement, Operation Letter and Operation Plan (OPLAN) excerpt containing ATC tasking to HQ AFSPC/DOOH for review/approval. Include a summary of recommended changes and any disagreements. Review annually and document in Airfield Operations Board minutes on anniversary month of the publication tasking ATC.

10.6.1.(Added) Local Indexes. Forward copies of current indexes to applicable LOPs to HQ AFSPC/DOOH during the month of February.

11.5. Notify HQ AFSPC/DOOH as soon as possible of all aircraft mishaps, on or off base, involving services provided by USAF ATC facilities. If a mishap occurs over the weekend, leave a message on the answering machine.

11.15. All changes in ATC mission will be thoroughly investigated by the local unit prior to submission to HQ AFSPC. Any proposal to reduce ATC capability must be coordinated with appropriate wing agencies, customers, and Federal Aviation Administration (FAA) /Host Nation.

11.16. Notify HQ AFSPC/DOOH as soon as possible of all military deviations or HATRs, on or off base, involving services provided by USAF ATC facilities. If an occurrence is over the weekend, leave a message on the answering machine.

12.2.2. Annual position evaluations shall contain the same information as paragraph 8.2. of this supplement.

12.3. HQ AFSPC/DOOH is the MAJCOM OPR for the Air Traffic System Evaluation Program (ATSEP).

12.5.3.5. Include in Airfield Operations Board agenda, a review of ATCALS issues listed in paragraph 16.2.1.

12.5.3.10. Airfield and airspace waivers will be reviewed annually.

16.1. A separate ATCALS review committee is not required, but agenda items must be reported in the Airfield Operations Board minutes. If an ATCALS review committee meeting is held and separate minutes are published, forward a copy to AFSPC/DOOH.

DONALD G. COOK, Brigadier General, USAF
Director of Operations