N440SF
Registered owner: OSF AVIATION LLC, IL (owner ≠ operator)
Operators of this aircraft
Who operated this tail, and how firmly we know it.
| Operator | Role | Period | Basis |
|---|---|---|---|
| OSF AVIATION LLC (O84A) | Certificate holder | — | Matched by certificate designator |
Accident & incident history
No NTSB accidents or incidents on file for this aircraft.
Maintenance disclosures
#1 GENERATOR DISCONNECT LIGHT DISPLAYED ON CAD. CONFIRMED LOSS OF GENERATOR. RESET ATTEMPTS FAILED. ABORTED FLIGHT AS MEL ONLY ALLOWED DAY VFR AND COULD NOT COMPLETE THE PATIENT TRANSFER BEFORE SUNSET.
NR 1 GENERATOR DISCONNECT ON THE CAD. RESET ATTEMPTED AND STILL DISCONNECTED. PATIENT FLIGHT ABORTED DUE TO MEL RESTRICTION OF DAY VFR ONLY.
NR 1 GENERATOR DISCONNECT ON THE CAD. RESET ATTEMPTED AND STILL DISCONNECTED. PATIENT FLIGHT ABORTED DUE TO MEL RESTRICTION OF DAY VFR ONLY.
NR 1 GENERATOR DISCONNECT ON THE CAD. RESET ATTEMPTED AND STILL DISCONNECTED. PATIENT FLIGHT ABORTED DUE TO MEL RESTRICTION OF DAY VFR ONLY.
NR 1 GENERATOR DISCONNECT DISPLAYED ON THE CAD. RESET GENERATOR TO NO AVIAL. DUE TO MEL RESTRICTIONS OF DAY VFR ONLY FLIGHT WAS ABORTED.
DURING CRUISE FLIGHT THE #1 ENGINE CHIP LIGHT ILLUMINATED. AFTER 2 ATTEMPTS TO BURN THE LIGHT REMAINED ON. THE ENGINE POWER WAS REDUCED AND PLANNING FOR PRECAUTIONARY LANDING BEGAN. THE ENGINE WAS THEN SHUT DOWN AND A RUN-ON LANDING WAS PERFORMED WITH NO FURTHER INCIDENTS. THE CHIP PLUG WAS INSPECTED REF MM AND TECH SUPPORT. PLUGS CLEANED AND GROUND RUNS WERE PERFORMED, THE AIRCRAFT WAS RETURNED TO SERVICE.
AIRCRAFT WAS PULLED INTO A HOVER AND THE LOW ROTOR WARNING SOUNDED AND THE ROTOR RPM READ ZERO. AIRCRAFT LANDED AND FLIGHT WAS CANCELLED.
DURING CRUISE FLIGHT F PUMP AFT WARNING APPEARED ON THE CAD. ABORTED FLIGHT AND RETURNED TO BASE AT KPIA.
ON FINAL APPROACH, NR 1 GEN DISCONNECT APPEARED ON CAD. AFTER SEVERAL ATTEMPTS TO RESET GENERATOR, IT REMAINED OFFLINE. THE ACFT LANDED AND MAINTENACE WAS CONTACTED. A MECHANIC WENT TO ACFT AND DEFERRED THE DISCREPANCY AND THE ACFT WAS FLOWN TO THE MAIN MAINTENACE FACILITY. THE NEXT DAY A BROKEN WIRE WAS DISCOVERED AT THE NR 1 GENERATOR.
BRIEFLY BEFORE ENTERING CRUISE FLIGHT, BOTH ENGINE CAD DISPLAYS SHOWED ENG PA DIS. ALSO ROTOR RPM DROPPED TO THE POINT OF WP LIGHT AND HORN. PILOT LOWERD POWER AND ATTEMPTED TO BEEP UP RPM. LOWERING POWER BROUGHT UP ROTOR RPM. AFTER CONSULTING CHECKLIST FOR WARNINGS, PILOT DECIDED TO ATTEMPT RUNWAY LANDING IN CASE THERE WAS NOT ENOUGH POWER TP HOVER. AT 5 FEET THERE THERE WAS SUFFICIENT POWER AND ROTOR RPM TO HOVER SO PILOT OPTED TO HOVER OVER TO HANGAR TO LAND. ACFT WAS TAKEN OUT OF SERVICE AND MAINTENANCE CONTACTED.