MOUNTAIN AIR SERVICES, LLC

Part 135 operator · designator 9MTA

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: MOUNTAIN AIR SERVICES LLC, MOUNTAIN AIR SERVICES, LLC, Mountain Air Services LLC

Accident & enforcement record

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

NTSB accidents & incidents

Accident · 2015-07-23 Operator named in NTSB report
ISRAEL AIRCRAFT INDUSTRIES 1125 WESTWIND ASTRA (N765A) No injuries Part 91

Operated by Mountain Air Services LLC (per NTSB report)

The flight crew's failure to visually ensure that the cabin door locking pin was in place before takeoff.

Source: NTSB case ERA15LA292

FAA enforcement actions

Certificate revoked · 2024-06-25 Name match — reviewer confirmed
Flight operationsAir carrier / commercial operator

Sanction not stated · case closed 2025-07-01

Source: FAA case 2024EA090005

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 2012–2016. Most-reported systems: Flight controls (27) — 1; Hydraulic power (29) — 1; Engine (72) — 1. Most-common natures of condition, as filed: ENGINE FLAMEOUT — 1; FLUID LOSS; WARNING INDICATION — 1; INADEQUATE Q C — 1.

3 reports on file.

ENGINE FLAMEOUT · 2016-10-01 Matched by certificate designator
N20WP · ATA 7200

Part: ENGINE — FLAMED OUT (RIGHT) · airframe 8,830 hrs · 8,802 cycles

PILOT REPORTED RT ENGINE FLAMEOUT AFTER LEVELING OFF FOR CRUISE AT 11,000 FT. FAILED RESTART. SUCCESSFUL LANDING.

Source: SDR 2016F00197
FLUID LOSS; WARNING INDICATION · 2014-03-30 Matched by certificate designator
N75B · ATA 2910

Part: HOSE — LEAKING (HYD SYSTEM) · airframe 7,505 hrs

PILOT REPORTED LOSS OF BRAKING. INSPECTION REVEALED HYD FLUID ON RT FLAP & IN RT GEAR WELL.

Source: SDR 9MTA2014040200001
INADEQUATE Q C · 2012-02-07 Matched by certificate designator
N75B · ATA 2731

Part: CONTROL CABLE — MISROUTED (ZONE 200) · airframe 7,120 hrs · 7,139 cycles

LEFT ELEVATOR TRIM TAB CABLE, SAWING INTO BULKHEAD AT FS 448.5. CABLE ROUTED INCORRECTLY ON SIDE OF PULLEY.

Source: SDR VIB82012020700001

Linked aircraft

N-numberMake / modelYearStatusLink basis
N20WPBEECH C901977Valid RegistrationMatched by certificate designator
N75B——Matched by certificate designator
N765A——Operator named in NTSB report

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.

  • N765A — records 2015 · no longer on the FAA registry