N641AT
Registered owner: HINTERLAND HOLDINGS LLC, AK (owner ≠ operator)
Operators of this aircraft
Who operated this tail, and how firmly we know it.
| Operator | Role | Period | Basis |
|---|---|---|---|
| J AND M ALASKA AIR TOURS INC (HVUA) | Certificate holder | — | Matched by certificate designator |
Accident & incident history
No NTSB accidents or incidents on file for this aircraft.
Maintenance disclosures
Service Difficulty Reports filed with the FAA for this airframe. Filing is largely voluntary — the number of reports is not a measure of reliability. To verify a report, search its control number at the FAA SDRS site.
3 reports on file, 2012-06-21 – 2026-01-28.
Part: OUTFLOW VALVE — FOD (ZONE 100)
NEARING TOP OF CLIMB THE CABIN CONTINUED A SHALLOW CLIMB PAST THE SCHEDULED CABIN ALTITUDE. IN RESPONSE THE PILOT DONNED HIS OXYGEN MASK AND INSTRUCTED PASSENGERS TO DO THE SAME WHILE HE EXECUTED A NORMAL DESCENT. AN EMERGENCY DESCENT WAS NOT PERFORMED. THE MAXIMUM CABIN ALTITUDE REACHED 14,000 FEET WITH AIRCRAFT AT FL 220. THE DESCENT AND RETURN WAS NORMAL WITH NO FURTHER INCIDENT. AFTER LANDING NEITHER PILOT NOR ANY PASSENGERS REPORTED ANY PHYSIOLOGICAL ISSUES.
Part: ANTENNA — MALFUNCTIONED (GPS) · airframe 4,182 hrs
TOTAL GPS NAV FAILURE. ENROUTE LOSS OF GPS SATELLITE RECEPTION ON ALL FOUR GPS DEVICES, INCLUDING TWO PANEL MOUNTED GTN 750 & 650 IFR WAAS GPS UNITS, A PORTABLE WAAS GPS & A SPIDERTRACKS WAAS GPS BASED SATELLITE FLIGHT TRACKER. ONE MAIN GPS, THE GTN-750, DISPLAYED AN ERROR MSG REFERENCING ANTENNA COAX. THE GTN-650 DISPLAYED A LOSS OF GPS MSG. ALL THREE GPS NAVIGATORS SHOWED NO SATELLITE RECEPTION ON THEIR GPS STATUS PAGES. THE GTN-750 & GTN 650 PILOT OPERATING GUIDES OFFER NO PROCEDURE REFERENCING ANTENNA COAX MSGS OR TOTAL LOSS OF TWO INDEPENDENT GTN UNITS. PILOT MADE RADIO CONTACT WITH COMPANY BASE WHILE STILL IN RANGE & COMPANY MX CALLED HELP DESK. HELP DESK ADVISED THAT THIS WAS VERY LIKELY CAUSED BY ONE OF THE TWO GTN UNIT'S WAAS GPS ANTENNAS FAILING IN A MODE THAT CAUSES A "GPS OSCILLATION SIGNAL" THAT WILL JAM GPS RECEPTION TO ALL OTHER UNITS ON THE ACFT. THE REP ADVISED THAT THE SOLUTION WAS TO ALTERNATELY TURN OFF THE GTN UNITS ONE AT A TIME TO SEE WHETHER SATELLITE RECEPTION WAS RESTORED TO THE OTHER UNIT. THE PILOT WAS ADVISED & AFTER SECURING THE GTN 750, THE UNIT WITH THE ANTENNA COAX ERROR MSG, SATELLITE RECEPTION WAS RESTORED ON THE REMAINING THREE INOPERATIVE GPS DEVICES, INCLUDING THE GTN-650, THE PORTABLE WAAS GPS UNIT & A SPIDERTRACKS WAAS GPS BASED SATELLITE FLIGHT TRACKER. RECOMMENDATIONS, PROMULGATE ABNORMAL PROCEDURE & REDESIGN TO ELIMINATE FAILURE MODE.
Part: MOTOR — SEIZED (HYD PACK) · airframe 2,149 hrs
PILOT SELECTED GEAR DOWN ON LANDING. NLG DID NOT FULLY EXTEND FOLLOWED BY A HYD CAWS WARNING. A FEW SECONDS LATER THE NOSE GEAR INDICATED DOWN AND THE PILOT LANDED UNEVENTFULLY. A LANDING GEAR FUNCTION CHECK FOUND THE HYD DC ELECTRIC MOTOR SEIZED. THE AIR INTAKE FAN SHROUD WAS OBSERVED TO BE BEATEN FROM THE INSIDE. THE MOTOR WAS REMOVED AND A 3/32 NUT WAS FOUND SHEARED, RATTLING AROUND IN THE FAN COMPARTMENT OF THE MOTOR.