Commercial Fixed Wing
Flight Crew Air Transport Pilot (ATP)
Confusion
Aircraft Equipment Problem Less Severe
Flight Crew Became Reoriented; Flight Crew Overcame Equipment Problem
Aircraft
We were cleared for the EDGAR 1B arrival into MMUN; landing on RW30L. We checked the step-down points and found an error at the fix: EDGAR. It's published on the Jepp plate as 280/FL 390BFL340A. However; the arrival loaded into the Pegasus FMC with: 280/FL320BFL340A. Since it is impossible to be 'below FL320' and 'above FL 340'; we changed the fix data in the FMC. I don't know what the plane would have actually flown in this case. The data in the FMC must be reliable.
Captain states that while the EDGAR1B arrival to MMUN shows crossing EDGAR between FL390 and FL340 at 280 knots; the FMC showed the crossing as 280/FL320BFL340A which is not possible.