N860AF
Registered owner: DAVOLI ROBERT E, NH (owner ≠ operator)
Operators of this aircraft
Who operated this tail, and how firmly we know it.
| Operator | Role | Period | Basis |
|---|---|---|---|
| COBALT AIR, LLC (6CBA) | Certificate holder | — | Matched by certificate designator |
Accident & incident history
No NTSB accidents or incidents on file for this aircraft.
Maintenance disclosures
DURING A ROUTINE TAKEOFF AT KLUK, THE CREW REPORTED: DURING T/O AT 12 PSI HEARD BANG / (NP) WENT BELOW 1000 / BLACK SMOKE CAME OUT THE RIGHT EXHAUST STACK & AMBER ENGINE NP (CAS) DISPLAYED. THE CREW REPORTS THEY SHUT THE ENGINE DOWN AND IT DID NOT SEIZE AFTER THE EVENT. TECHNICIANS ARRIVED FOR AN INSPECTION AND FOUND DENTS/HOLES FROM THE INSIDE OF THE L/H AND R/H EXHAUST STACKS. NO EVIDENCE OF DAMAGE FROM DEBRIS FOUND ON THE AIRFRAME. NO DAMAGE VISIBLE ON THE EXTERIOR OF THE GAS GENERATOR OR POWER SECTION. CONFIRMED ALL CONTROL LINKAGES, FUEL LINES, OIL LINES, AND PNEUMATIC LINES WERE PROPERLY INSTALLED AND SECURE. PERFORMED A BORESCOPE INSPECTION OF THE FIRST STAGE COMPRESSOR IAW PRATT AND WHITNEY EMM 72-00-00. NO DEFECTS NOTED. NO EVIDENCE OF INGESTION NOTED ON INLET SCREENS OR COMPRESSOR BLADES. REMOVED FUEL NOZZLE #13 AND REMOVED THE NUTS FROM #12 TO FACILITATE HOT SECTION BORESCOPE IAW PRATT AND WHITNEY EMM 73-11-01. PERFORMED A HOT SECTION BORESCOPE IAW PRATT AND WHITNEY EMM 72-00-00. NO DEFECTS NOTED. PERFORMED A BORESCOPE INSPECTION OF THE 2ND STAGE POWER TURBINE FROM THE EXHAUST STACK IAW PRATT AND WHITNEY EMM 72-00-00. FOUND ALL VISIBLE ROTOR AND STATOR BLADES DAMAGED, WITH SOME BLADES MISSING SIGNIFICANT MATERIAL. PERFORMED AN INSPECTION OF THE RGB CHIP DETECTOR IAW P&WC EMM 72-00-00, TABLE 601, 3A(8). NO DEBRIS OR OTHER DEFECTS NOTED. PERFORMED AN INSPECTION OF THE OIL FILTER IAW P&WC EMM CHAPTER 79-20-02. NO DEBRIS OR OTHER DEFECTS NOTED. THIS ENGINE IS INTENDED TO BE REPLACED BY A PRATT & WHITNEY MRT. OPEN
DURING CRUISE FROM DEPARTING AIRPORT KACK ON A FLIGHT TO KBKL, THE CREW OBSERVED FLUCTUATING FUEL FLOW INDICATIONS OF 10-20 POUNDS PER HOUR EVERY 4-5 SECONDS. ALL OTHER ENGINE INSTRUMENTS FLUCTUATED ACCORDING WITH THE INCREASE AND DECREASE OF FUEL FLOW. THE CREW DIVERTED TO KIPT AND LANDED SAFELY WITH NO INCIDENT. TECHNICIANS ARE CURRENTLY SCHEDULED TO TROUBLESHOOT ON 09/13/23. A SUPPLEMENTAL SDR WILL BE FILED WHEN FURTHER INFORMATION BECOMES AVAILABLE.
PROBLEM: THE FLIGHT CREW REPORTED WHILE IN DECENT TO KIAD, " UNCOMANDED RUDDER TRIM TO FULL LIMIT, YAW DAMPER FAILED WHICH IN CAUSED A/C TURN. TRIM INTERRUPT TO REMOVE POWER AND RESET CB. NORMAL OPERATION WAS REGAINED AND THE IRCRAFT LANDED WITHOUT INCIDENT. RESOLUTION: CONTRACT MAINTENANCE VENDOR WAS CALLED TO THE AIRCRAFT. THE KTA 2810 TRIM ADAPTER WAS REMOVED AND REPLACED AND OPS CHECK GOOD IAW AMM 12-B-22-10-07-00A-920A-A NO FURTHER DEFECTS WERE NOTED.