A KING AIR FLC IS CONFUSED BY A MISSPELLED INTXN NAME THAT WAS NOT AVAILABLE TO THEM IN THEIR GPS WHEN CLRED FROM AZELL TO JEANY INTXN; NC.

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I WAS OBSERVER INSTRUCTOR PLT WITH A PLT WHO IS TO BE OUR NEW COMPANY SINGLE PLT (PIC) (HE HAS AN ATP AND 12000+ HRS). ON A BUSINESS FLT RETURNING TO PETERSBURG; WV (W99); FROM LEXINGTON; NC (EXX); WE HAD TO PICK UP OUR CLRNC ON THE GND AT EXX BY REMOTE. THE CONNECTION WAS BAD AND WE ASKED TO VERIFY IT TWICE. WE WERE CLRED TO AZELL INTXN 4000 FT. JUST BEFORE AZELL WE WERE CLRED TO JEANE INTXN BY GSO CTLR. WE ASKED THE CTLR TO SPELL IT AS WE COULD NOT LOCATE IT ON OUR LOW ALT ENRTE CHARTS. WE WERE STILL AT 4000 FT. I PUT JEANE INTXN INTO OUR GPS (KLN 90B; IFR CERTIFIED) BUT THE DISTANCE WAS TOO GREAT. I HAD THE PIC RECHK THE SPELLING AND THE CTLR SAID HE HAD MISSPELLED IT AND GAVE US THE NEW SPELLING WHICH BOTH THE PIC AND I THOUGHT WAS JEANI. WE STILL COULD NOT FIND IT IN OUR ENRTE CHART AND THE GPS SAID IT WAS TOO FAR AWAY FOR OUR RTE. THE CTLRS CHANGED; SAME FREQ; AND THE NEXT CTLR GAVE US A 070 DEG STEER TO A FIX OF 38 MI ON THE 058 DEG RADIAL OF GSO. I REMEMBERED DEPARTING FROM GSO OTHER TIMES AND LOOKED AT A DEP PROC CHART (QUAKER 2) AND JEANY WAS ON THAT CHART. THE REST OF THE FLT WAS UNEVENTFUL. THE FIRST PART OF THE FLT I CONSIDER UNSAFE BECAUSE IT KEPT 2 PLTS (ACFT WAS PUT ON AUTOPLT) HEADS MOSTLY INSIDE THE ACFT. THERE WERE OTHER VFR ACFT IN THE AREA; SOME WITH NO ELECTRICAL SYS; AND BECAUSE OF THE DENSITY OF THE TFC IN THE AREA THAT WAS BEING CTLED AND OUR ALT 4000 FT; WE COULD HAVE HAD A MIDAIR. OUR GPS SYS IS NOT USER FRIENDLY. IF OUR RTE WAS KNOWN BEFORE TKOF; WE COULD HAVE PROGRAMMED IT. IF WE HAD BEEN GIVEN A HIGHER ALT; WE PROBABLY WOULD HAVE BEEN OUT OF SOME SMALLER ACFT AREAS. IF THE APCH PLATES FOR EXX WERE CHANGED OR A DEP ADDED AND THE DEP FIXES FOR GSO ON THE ENRTE CHART ADDED (LOW LEVEL); IT WOULD BE A SAFETY FACTOR. I HAVE ALSO ENCOUNTERED OTHER INSTANCES WHERE THE CTLR HAS GIVEN ROUTING THAT WAS NOT ON THE PROPER ALT ENRTE CHART; IE; MILIE INTXN -- NEAR JAX; BUT AT UPPER LEVELS ABOVE; SAY; 14000 FT MOST PLANES ARE IN COM OR HAVE A XPONDER AND ARE IDENTIFIABLE. AT LOW LEVEL AND BUSY AREAS WITH SINGLE PLT OP; IT IS DANGEROUS. SINGLE PLT OPS ARE BUSY ENOUGH; BUT ADDING LCL FACTORS; WITHOUT BEING LCL; LESSENS THE SAFETY FACTOR.