Narrative:

3 events; gru to ZZZ; of needing to use transponder 7600 and 121.5 attempts to communicate due to multiple ATC sectors failing to answer calls on assigned frequency; charts frequencys; traditional frequencys we use on these rtes for past 3 yrs; 2 recently published NOTAM replacement frequencys; 121.5; HF -- nobody around on 123.45; HF useless. 7600 and 121.5 used for blind transmission reports immediately for their failure to communicate; sometimes when 'trw' deviation required for safety. Sent dispatch messages and asked for help. Providing an fom (flight operations manual) with exact language from ICAO documents and annexes as well as exact language for each country would assist in decision making and protecting the crew from the military hacks running the aviation ATC system and provide crews with the same tools available in commercial subscriptions onboard every business jet.

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Original NASA ASRS Text

Title: A B767-300 CAPT RPTS THAT WHILE NORDO SOUTH AMERICAN ATC REFUSES TO ANSWER EVEN HIS EMER COM METHODS.

Narrative: 3 EVENTS; GRU TO ZZZ; OF NEEDING TO USE XPONDER 7600 AND 121.5 ATTEMPTS TO COMMUNICATE DUE TO MULTIPLE ATC SECTORS FAILING TO ANSWER CALLS ON ASSIGNED FREQ; CHARTS FREQS; TRADITIONAL FREQS WE USE ON THESE RTES FOR PAST 3 YRS; 2 RECENTLY PUBLISHED NOTAM REPLACEMENT FREQS; 121.5; HF -- NOBODY AROUND ON 123.45; HF USELESS. 7600 AND 121.5 USED FOR BLIND XMISSION RPTS IMMEDIATELY FOR THEIR FAILURE TO COMMUNICATE; SOMETIMES WHEN 'TRW' DEV REQUIRED FOR SAFETY. SENT DISPATCH MESSAGES AND ASKED FOR HELP. PROVIDING AN FOM (FLT OPS MANUAL) WITH EXACT LANGUAGE FROM ICAO DOCUMENTS AND ANNEXES AS WELL AS EXACT LANGUAGE FOR EACH COUNTRY WOULD ASSIST IN DECISION MAKING AND PROTECTING THE CREW FROM THE MIL HACKS RUNNING THE AVIATION ATC SYS AND PROVIDE CREWS WITH THE SAME TOOLS AVAILABLE IN COMMERCIAL SUBSCRIPTIONS ONBOARD EVERY BUSINESS JET.

Data retrieved from NASA's ASRS site as of January 2009 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.