We never show street addresses, even though they appear in the public FAA file. Individual owners are shown by city and state only.
Airframe & engine
FAA Registry + type data
Airframe
Manufacturer
Beechcraft
Model
99
Year
1968
Serial number
U-6
Aircraft type
Fixed wing multi engine
Category
Land
Certification
Type Certificated
Seats
17
Engines
2
Max takeoff weight
Up to 12,499 lb
Mode S code
AD3443
Engine
Make and model
U/A Canada Pt6 Ser 578hp
Type
Turbo-prop
Power
550 hp
Total time and engine hours aren't public. They appear here once the owner adds logbooks.
Ownership history
Ownership history from FAA records
2010 – nowAlpine Aviation INCProvo, UT · current
Individual owners are shown by city and state only.
Safety record
NTSB · Oct 15, 2026 · FAA ADs · Oct 17, 2026 · SDRs · Oct 16, 2026
NTSB events (2)
Accident · substantial damage
Jul 16, 1985 · Louisville, KY
WHILE ENROUTE TO 8000 FT, BOTH ENG LOST ALL POWER. THE PLTS ATTEMPTED RETURN TO THE DEPARTURE A/P WAS UNSUCCESSFUL. HE MADE AN EMERG LDG ON THE INTERSTATE HIGHWAY. ALL LANDING GEAR WAS DAMAGED. THE FUEL TANKS WERE EMPTY. THERE WERE CONFLICTING FUEL QUANTITY INDICATIONS PRIOR TO T/O. NO ATTEMPT WAS MADE TO DETERMINE THE ACTUAL FUEL QUANTITY PRIOR TO FLT. THE A/C HAD A HISTORY OF FUEL QUANTITY…
DURING TAKEOFF ON A REGULARLY SCHEDULED PASSENGER FLIGHT THE AIRCRAFT SUSTAINED A TOTAL ENGINE FAILURE AND FLAMEOUT ON THE RIGHT ENGINE. AFTER SECURING THE ENGINE, THE CREW EXECUTED AN UNEVENTFUL SINGLE ENGINE LANDING WITHOUT FURTHER DAMAGE TO THE AIRCRAFT OR INJURIES TO PERSONS. EXAMINATION OF THE ENGINE REVEALED THAT THE COMPRESSOR TURBINE WHEEL HAD FAILED. THE INTERNAL DAMAGE WAS CONFINED TO…
These match the airframe or engine model. Whether each one applies, and whether it's been complied with, depends on serial numbers, equipment and logbook entries. Applicability must be confirmed by a mechanic against the aircraft's records.
AFTER TAKEOFF WHILE CLIMBING THROUGH ROUGHLY 6000 FEET THE TORQUE AND ITT BEGAN TO SLOWLY FALL. AFTER PILOT NOTICED THE DECREASE HE REQUESTED TO GO BACK TOWARD THE AIRPORT AND BEGAN TO TROUBLE SHOOT. HE INCREASED AND DECREASED THE POWER LEVERS AND NOTICED VERY LITTLE CHANGE. THE TORQUE KEP SLOWLY…
From FAA Service Difficulty Reports; matched by N-number and serial number.
Electrical power · ground wire · chafedApr 16, 2019
PILOT REPORTED SMOKE IN COCKPIT WHILE INBOUND. UPON INVESTIGATION, FOUND WIRES CHAFED TO GROUND AND OVERHEATED.
From FAA Service Difficulty Reports; matched by N-number and serial number.
Engine · engine · seizedOct 27, 2008
PILOT FELT A POWER SURGE AND SAW FLAMES OUT THE LEFT ENGINE EXHAUST FOR A MOMENT. LEFT PROPELLER STOPPED TURNING. PILOT SECURED ENGINE, CONTINUED ON AND LANDED WITHOUT INCIDENT. INVESTIGATION REVEALED THAT THE PT BLADES WERE MOSTLY GONE. CT BLADES ARE OK. SUSPECT BEARING FAILURE IN POWER SECTION.
From FAA Service Difficulty Reports; matched by N-number and serial number.
Show all 9 reportsShow fewer reports
Wings · rib · crackedOct 11, 2005
LT ELEVATOR WAS FOUND CRACKED BEHIND ELEVATOR BALANCE WEIGHT AT THE OB END OF THE ELEVATOR. UPON FURTHER INVESTIGATION IT WAS DISCOVERED THAT THE BALANCE WEIGHT WAS MODIFIED TO INCREASE THE WEIGHT. THE ADDED WEIGHT WAS DETERMINED TO BE INSTALLED BECAUSE THE ELEVATOR HAD BEEN SKINNED WITH ALUMINUM…
From FAA Service Difficulty Reports; matched by N-number and serial number.
Engine fuel and control · fuel control · malfunctionedMay 16, 2001
ENGINE REPORTEDLY BACKFIRED AND SURGED AT HIGH POWER SETTINGS WHEN MAKING CHANGES IN POWER SETTING. ENGINE PASSED ALL GROUND PERFORMANCE CHECKS SO A FCU WAS REPLACED FOR TROUBLESHOOTING. ITS UNKNOWN WHAT CAUSED THE FCU TO MALFUNCTION DURING THE ACCELERATION MODE.
From FAA Service Difficulty Reports; matched by N-number and serial number.
Flight controls · trim tab · crackedJun 13, 2000
THE AILERON TRIM TAB DID NOT PASS A VISUAL SURFACE INSPECTION DURING A CHECK OF THE FREE PLAY DURING A DETAILED INSPECTION. REMOVED ENTIRE AILERON ASSY AND INSTALLED A SERVICEABLE AILERON ASSY. THE INSPECTION PROCESS WORKED IN THIS CASE AS DESIGNED SO AN INCREASE IN FREQUENCY IS NOT WARRANTED. THE…
From FAA Service Difficulty Reports; matched by N-number and serial number.
Landing gear · torque knee · crackedJun 18, 1999
THE TORQUE KNEES (UPPER AND LOWER) WERE FOUND CRACKED DURING INSPECTION. CRACK NEAR CENTER PIVOT BOLT AREA.
From FAA Service Difficulty Reports; matched by N-number and serial number.
Wings · cap · crackedApr 26, 1999
CRACK FOUND IN LEFT GEAR WELL AFT OF MAIN SPAR ON INBOARD SIDE OF THE CAP IN THE VICINITY OF THE NACELLE SPLICE PLATE.
From FAA Service Difficulty Reports; matched by N-number and serial number.
Fuel · fuel cell · leakingJan 29, 1999
ON POST-FLIGHT, PILOT REPORTED FUEL LEAKING FROM RT WING FROM GEAR DOOR, FUEL TRACED TO BOX CELL AFT OF SPAR, OUTBOARD OF NACELLE. REPLACED FUEL CELL, POST-WORK OPS CHECKS OK. POSSIBLE CAUSE OF LEAKAGE WAS CONDITION/AGE OF FUEL CELL AND/OR IMPROPER INSTALLATION.
From FAA Service Difficulty Reports; matched by N-number and serial number.