Narrative:

Clearance was pondd intersection; tafto intersection; flm VOR then the tandy 3 arrival. Pondd intersection was inserted manually into the FMS as ponnd which resulted in a 10 mile error when la center noticed the deviation. La center issued a heading to fly with no traffic incursion. The error was a result of the close proximity of both intersections with similar spellings. No traffic issues resulted from the error.

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Original NASA ASRS Text

Title: A flight crew reported a track deviation in ZLA airspace after entering PONND Intersection in the FMS when the clearance was to a nearby PONDD Intersection.

Narrative: Clearance was PONDD Intersection; TAFTO Intersection; FLM VOR then the TANDY 3 arrival. PONDD Intersection was inserted manually into the FMS as PONND which resulted in a 10 mile error when LA Center noticed the deviation. LA Center issued a heading to fly with no traffic incursion. The error was a result of the close proximity of both intersections with similar spellings. No traffic issues resulted from the error.

Data retrieved from NASA's ASRS site as of July 2013 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.