Universal Aviation Ireland reports that Shannon Airport (EINN) has introduced new security procedures affecting how certain general aviation flights are handled on arrival and how passengers, crew and baggage are processed before departure.

The key distinction for arriving flights is now whether passengers, crew and hold baggage were screened at the airport of origin under a security standard recognized by Ireland. Flights that do not meet those requirements may face additional controls after arrival, including parking in a controlled area and restrictions on access to the aircraft.

For departures, the former dedicated GA/VIP screening process is no longer available. Passengers, crew and baggage must now pass through Central Search in Shannon’s main terminal.

For operators, this means both the origin of the flight and the security status of the passengers, crew and baggage need to be considered before the mission reaches Shannon.

What operators need to know

• Arriving flights may use Shannon’s standard arrival process when Universal Aviation receives advance written confirmation that the flight originated from an airport recognized under the applicable Irish security program and that passengers, crew and hold baggage were screened before departure.
• The United States is recognized under Section 4B of Ireland’s National Civil Aviation Security Programme. U.S.-originating flights may therefore use the standard arrival process when the required screening has been completed and confirmed in writing.
• Flights without recognized prior screening may need to park in a controlled area, potentially restricting access to the aircraft and adding time to passenger movements or aircraft servicing.
• Departing passengers, crew and baggage must now use Central Search in the main terminal. The previous GA/VIP screening process is no longer available.
• Operators should generally plan for passengers to arrive 50-60 minutes before departure.
• The procedures continue to evolve, so requirements should be reconfirmed during mission planning.

What has changed for arrivals at Shannon?

The most important change for arriving operators is that Shannon now distinguishes between flights based on the security screening completed before departure from the previous airport.

To use the standard arrival process, Universal Aviation requires advance written confirmation that:

• The flight originated from an EU-compliant airport or another airport recognized under Section 4B of Ireland’s National Civil Aviation Security Programme.
• All passengers were screened before departure.
• All crew were screened before departure.
• Hold baggage was screened before departure.

When these requirements are satisfied and confirmed in advance, the aircraft can follow Shannon’s standard arrival process.

If the required screening cannot be confirmed, additional security controls may apply.

What happens if the flight was not screened at a recognized airport?

Flights without recognized prior screening may be required to park in a controlled area at Shannon.

This can have operational consequences beyond passenger processing. Depending on the circumstances, access to the aircraft may be restricted, which can complicate passenger movements, servicing and the overall turnaround.

The practical planning question is therefore no longer simply whether the aircraft can operate to Shannon. Operators should establish the security status of the inbound flight before arrival so the Shannon team can determine which arrival process will apply.

Are U.S.-originating flights affected?

Yes, but the United States is recognized under Section 4B of Ireland’s National Civil Aviation Security Programme.

That means a U.S.-originating flight can use Shannon’s standard arrival process when the required passenger, crew and hold baggage screening has been completed at departure and Universal Aviation receives written confirmation in advance.

Operators should not assume that a U.S. departure alone automatically satisfies the process. The screening itself still needs to meet the applicable requirements and be confirmed before arrival.

What has changed for departures from Shannon?

All departing passengers, crew and baggage must now pass through Central Search in Shannon’s main terminal.

The previous dedicated GA/VIP security screening process is no longer available.

Passengers and crew are escorted through the terminal screening process by their handling agent. Security screening uses the airport’s central screening infrastructure, including advanced passenger screening and EDS C3 baggage screening.

The process is less discreet than the former GA/VIP arrangement and introduces an additional terminal movement into the departure sequence.

Operators should generally plan for passengers to arrive at Shannon approximately 50-60 minutes before departure.

For VIP and executive charter operations in particular, passengers should be briefed in advance so the terminal screening requirement does not come as a surprise.

What is the biggest planning mistake operators should avoid?

Do not wait until arrival at Shannon to determine whether the inbound flight qualifies for the standard security process.

If the security status of the origin airport and the screening of passengers, crew and hold baggage cannot be confirmed in advance, the aircraft may require additional security handling after arrival.

That can affect access to the aircraft and complicate what would otherwise be a straightforward passenger movement or technical stop.

For departures, operators should also avoid building schedules around the former private GA screening experience. Central Search is now part of the departure process and should be included in passenger reporting times.

How do the procedures affect U.S. CBP preclearance?

Shannon’s security procedures also affect the passenger flow for operators using U.S. Customs and Border Protection preclearance.

Passengers and crew who require security screening must now move through the main terminal screening process rather than the former dedicated VIP screening area before completing the applicable preclearance process.

The change primarily affects the passenger experience and movement through the airport rather than the underlying CBP preclearance requirements.

U.S. CBP operating hours at Shannon

CBP preclearance at Shannon operates year-round with seasonal hours:

May 1-September 30

• 0700-1500 local
• Out-of-hours availability: 1500-2100 local

October 1-April 30

• 0900-1700 local
• Out-of-hours availability: 0700-0900 and 1700-2100 local

A minimum of 24 hours’ notice is required for CBP bookings, with 48 hours strongly recommended.

E-APIS must be filed at least 24 hours before arrival for CBP clearance to be granted.

Operators combining CBP preclearance with fueling or other ground services should coordinate the complete sequence with the Shannon handling team rather than treating security, CBP and aircraft servicing as separate planning items.

How much time should operators allow?

For departures, operators should currently plan for passengers to arrive approximately 50-60 minutes before departure because of the requirement to use Central Search.

Arrival timing will depend more heavily on whether the flight qualifies for Shannon’s standard process.

A flight with recognized prior screening and the required advance confirmation should experience a more straightforward arrival. A flight without recognized screening may require additional security controls that can affect passenger movement, aircraft access and servicing.

Shannon operational safety reminder

Crews should also remain alert to the known level-bust risk in the Shannon Approach environment.

When instructed, altimeters should be set using hectopascals (hPa). Inches of mercury should not be used unless specifically directed.

Incorrect altimeter settings have contributed to level-bust events involving non-scheduled aircraft operating at Shannon.

Are similar procedures coming to Dublin?

Additional security requirements similar to those now being implemented at Shannon may eventually be considered at Dublin Airport (EIDW).

At this stage, however, no comparable change at Dublin has been confirmed.

Operators should therefore avoid assuming Shannon’s procedures currently apply at Dublin and should verify requirements independently when planning an operation there.

What operators should do before operating to Shannon

For an upcoming Shannon mission:

• Confirm whether the origin airport qualifies under the applicable Irish security framework.
• Confirm that passengers, crew and hold baggage will be screened before departure.
• Provide the required written confirmation to Universal Aviation before arrival.
• Determine whether the aircraft will qualify for Shannon’s standard arrival process.
• Brief passengers that departures now require screening through Central Search.
• Plan for passengers to arrive approximately 50-60 minutes before departure.
• Coordinate security requirements with CBP preclearance, fueling and aircraft servicing when applicable.
• Reconfirm procedures with the Shannon team because implementation continues to evolve.

Operators can also review Universal Aviation’s detailed Shannon Arrival & Departure Guide for the current process.

Looking ahead

Shannon Airport has previously outlined plans for a new GA vehicle-entry screening facility equipped with C3 screening technology.

Until a dedicated solution becomes available, operators should plan around the current terminal-based departure screening process and the new security classification affecting arriving flights.

The biggest change is one operators can address before the aircraft ever reaches Ireland: establish the security status of the inbound flight early and provide the required confirmation in advance. Doing so can determine whether the aircraft follows Shannon’s standard arrival process or requires additional controls on the ground.