Yellowstone Air Service Inc

Part 135 operator · designator HTLA

Data confidence: All records on this page are linked by a shared certificate number or aircraft registration (N-number).

Also recorded as: Yellowstone Air Service Inc

Accident & enforcement record

Events that happened, regardless of the operator's own reporting. Each links to its public source.

NTSB accidents & incidents

No NTSB accidents or incidents linked to this operator.

FAA enforcement actions

FAA enforcement records haven't been loaded into GroundCheck yet, so none can be shown — a gap in our data, not evidence of a clean enforcement history.

Maintenance disclosure history

Service Difficulty Reports are self-reported maintenance findings. The NUMBER of reports is not a measure of reliability — diligent operators file more, not fewer. These are shown for transparency, not as a negative signal.

1 report on file.

O · 2005-06-03 Matched by certificate designator
N4990P · ATA 2433

CONVERTER WAS INSTALLED IAW MFG INSTRUCTIONS, DIAGRAMS AND INSTALLATION WAS APPROVED WITH A 337. CONVERTER FAILED IN LESS THAN 10 SECONDS. OUT OF FIVE CONVERTERS, FOUR IN AC AND ONE ON THE TEST BENCH, ALL HAVE FAILED. (K)

Source: SDR 2005FA0000838 · FAA SDRS

Linked aircraft

N-numberMake / modelYearStatusLink basis
N4990PPIPER PA-18-1501967Valid RegistrationMatched by certificate designator