Yellowstone Air Service Inc

Part 135 operator · designator HTLA

Data confidence: Records are linked by certificate number, aircraft registration, or a name match that a reviewer has confirmed. Each record below shows how it was linked.

Also recorded as: YELLOWSTONE AIR SERVICE, 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

Accident · 1988-06-22 Operator named in NTSB report
CESSNA T188C (N4970J) Minor injury Part 137

Operated by YELLOWSTONE AIR SERVICE (per NTSB report)

Source: NTSB case DEN88LA134

FAA enforcement actions

No FAA enforcement actions linked to this operator.

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. To verify a report, search its control number at the FAA SDRS site.

Reports span 2005–2005. Most-reported systems: Electrical power (24) — 1. Most-common natures of condition, as filed: OTHER — 1.

1 report on file.

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

Part: CONVERTER — FAILED (DC SYSTEM)

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

Linked aircraft

N-numberMake / modelYearStatusLink basis
N4970J——Operator named in NTSB report
N4990PPIPER PA-18-1501967Valid RegistrationMatched by certificate designator

Aircraft with earlier records under this certificate

Maintenance and accident records on this page also cover aircraft that are not in this operator's current FAA fleet list. Charter and management fleets change — owners switch management companies, sell, or export aircraft. Where the registry shows what became of a tail, it is noted below.

  • N4970J — records 1988 · no longer on the FAA registry