GA pilot reported that most commercial operators flying to myef use the wrong frequency for traffic ...

Narrative:

This is an accident waiting to happen! The problem is myef - ggt exuma international airport afis 118.0; unicom 122.8 frequencies are listed on practically every chart there is; however more or less all airlines as well as the [law enforcement] helicopter and practically all jet operators call exuma on 122.8 - unicom; but everyone else uses (correctly) 118.0. I had a near miss with a corporate jet; flying out on runway 30 while they were talking on 122.8; straight in to runway 12. Listening on 122.8 (ground based scanner); I corrected at least 15 aircraft all day long. Having spoken to some [airline] pilots; the answer was that 118.0 is not on the jeppesen chart. I pointed out that it was (3rd column- 'afis') but they said that they don't know what afis is. Apparently this is the case with the briefing/dispatch services used by the corporate jet operators as well as the airline dispatchers.I need not point out the looming danger of medium size jets flying into a relatively busy airport on the wrong frequency while half of the other airplanes are on another frequency. It is a disaster waiting to happen. I consider it life threatening as I had a pretty close encounter with the jet head-on (worst case of course due to minimum visible area). If I could; I would issue an emergency NOTAM for exuma outlining the frequency for the 'advisory control tower' which is 118.0 and that this is the frequency everybody needs to be on.

Original NASA ASRS Text

Title: GA pilot reported that most commercial operators flying to MYEF use the wrong frequency for traffic advisories on UNICOM versus the correct AFIS frequency.

Narrative: This is an accident waiting to happen! The problem is MYEF - GGT Exuma International Airport AFIS 118.0; UNICOM 122.8 frequencies are listed on practically every chart there is; however more or less ALL airlines as well as the [Law Enforcement] Helicopter and practically ALL Jet Operators call Exuma on 122.8 - UNICOM; but everyone else uses (correctly) 118.0. I had a near miss with a Corporate jet; flying out on Runway 30 while they were talking on 122.8; straight in to Runway 12. Listening on 122.8 (ground based scanner); I corrected at least 15 aircraft all day long. Having spoken to some [Airline] Pilots; the answer was that 118.0 is NOT on the Jeppesen Chart. I pointed out that it was (3rd column- 'AFIS') but they said that they don't know what AFIS is. Apparently this is the case with the Briefing/Dispatch services used by the corporate jet operators as well as the Airline dispatchers.I need not point out the looming danger of medium size Jets flying into a relatively busy airport on the wrong frequency while half of the other airplanes are on another frequency. It is a disaster waiting to happen. I consider it life threatening as I had a pretty close encounter with the jet head-on (worst case of course due to minimum visible area). If I could; I would issue an emergency NOTAM for Exuma outlining the frequency for the 'advisory control tower' which is 118.0 and that this is the frequency everybody needs to be on.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.

Attributes
ACN	1501142
Time
Date	201712
Local Time Of Day	0601-1200
Place
Locale Reference	MYEF.Airport
State Reference	FO
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Skylane 182/RG Turbo Skylane/RG
Operating Under FAR Part	Part 91
Flight Phase	Cruise
Route In Use	None
Flight Plan	None
Person 1
Function	Captain
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Flight Instructor Flight Crew Instrument Flight Crew Multiengine
Experience	Flight Crew Last 90 Days 50 Flight Crew Total 16000 Flight Crew Type 1000
Events
Anomaly	Deviation - Procedural Published Material / Policy

GA pilot reported that most commercial operators flying to myef use the wrong frequency for traffic advisories on unicom versus the correct afis frequency.