It is critical that required NOTAMs alert users of an inoperative facility or system. Ideally, a NOTAM will allow authorized operators to continue, while notifying unauthorized operators that the specified approach procedure is not available. Consult FAA Order 6750.24 to determine if any additional NOTAM Ds should be issued. AIS 24/7 NOTAM Center is responsible for issuing any procedural NOTAMs, such as flight data center (FDC) NOTAMs. Technical Operations issue NOTAMs related to outages or restrictions for all ILS equipment and components that they own/maintain/certify, regardless of duration. If the NAVAID is reported as being unserviceable, the unmonitored NOTAM must be canceled. When issuing a NOTAM describing a facility as unmonitored, do not use the category of monitor, only the phrase “NOT MNT.”ĭo not issue a NOTAM for a standalone DME that is not monitored. When a navigational aid's operational status cannot be monitored at the controlling or monitoring facility, but all indications or reports are the facility is operating normally, Technical Operations personnel must ensure the origination of a NOTAM placing the aid in an unmonitored status. When this is not possible, disseminate a NOTAM no more than 7 days before the shutdown.Īll VOR, VORTAC, and ILS equipment in the NAS have automatic monitoring and shutdown features in the event of malfunction. Notify the Aeronautical Data Team sufficiently in advance to permit publication of the information prior to the shutdown date. When possible, obtain at least 1-hour advance notice so that appropriate dissemination may be made before shutdown.Įxtended maintenance shutdown. A routine maintenance shutdown request must not be denied because of an inability to issue a NOTAM 5 hours in advance of the shutdown.Įmergency shutdown. When possible, approval should be obtained sufficiently in advance of the proposed shutdown time to allow dissemination of a NOTAM at least 5 hours before a shutdown will occur. Information concerning maintenance shutdown of NAVAIDs that are part of the NAS must be handled as follows: Except for emergency shutdowns, technical operations personnel are expected to give at least 1 hour notice. ![]() When possible, the expected duration of the shutdown is to be included in the message. Unprogrammed, extended facility shutdowns or other unanticipated outages that are expected to last more than 30 days must be promptly reported to the Aeronautical Data Team. Known or reported malfunctions of a navigational aid must be reported to Technical Operations or appropriate personnel. ![]() Technical Operations personnel must ensure the origination of NOTAM Ds concerning NAVAIDs for which they are responsible.
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