CTP AVIATION, LLC

AIRCRAFT MADE A SCHEDULED DEPARTURE. DURING CLIMB OUT, SMOKE WAS NOTICED IN THE COCKPIT & CABIN BY BOTH THE FLIGHT CREW AND PASSENGERS. AIRCRAFT DECLARED AND EMERGENCY AND DIVERTED. AIRCRAFT LANDED WITHOUT INCIDENT. DURING INVESTIGATION AS TO THE CAUSE OF THE SMOKE, IT WAS DETERMINED THAT AN OIL SEAL IN THE APU HAD FAILED WHICH ALLOWED OIL INTO THE APU INTAKE CAUSING SMOKE IN THE CABIN.

ENGINE EXPERIENCED UN-COMMANDED ROLLBACK DUE TO COMPRESSOR STALL IN CRUISE FLIGHT DURING LIGHT TURBULENCE. THIS CAUSED SMOKE ODOR IN CABIN AND ITT EXCEEDANCE.

FLIGHT CREW HAD NO LG DOWN INDICATION ON LG EXTENSION. TROUBLESHOOTING INDICATED NO OUTPUT FROM LG MONITORING PCB. PCB WAS REPLACED, LG FUNCTIONAL TEST WAS SATISFACTORY.

ENGINE FAILED IN CRUISE FLIGHT AT FL400. A LOUD NOISE OCCURRED (SPECULATED TO BE COMPRESSOR STALL) IMMEDIATELY FOLLOWED BY A SHARP LEFT YAW. FLIGHT CREW REPORTS THAT THEY NOTED ZERO RPM ON N2 WITHIN SECONDS. THERE WAS NO PRIOR INDICATION OF ANY PROBLEM. ENGINE WAS SECURED AND AIRCRAFT DIVERTED TO A SINGLE ENGINE LANDING AT KDTW.

DISCOVERED FAILED ECU ASPIRATOR HIGH PRESSURE TUBE, BROKEN ECU ASPIRATOR TO COASLESCER TUBE & CHAFED RUDDER BIAS BLEED AIR TUBE ON PREFLIGHT. THIS CONDITION APPEARS TO BE DUE TO POOR ROUTING AND ON GOING CHAFING BETWEEN THE ASPIRATOR AND RUDDER BIAS PLUMBING OVER AN UNKNOWN AMOUNT OF TIME.

ACFT EXPERIENCED A WINGTIP VIBRATION OF APPROX 24" AMPLITUDE AND 3-PER-SECOND FREQUENCY AT BOTH WINGTIPS. THIS EVENT LASTED FOR A DURATION OF APPROX 15-20 SECONDS DURING DESCENT THROUGH FL330 AT MACH 0.78 AND RELATIVELY LIGHT ACFT LOAD. THIS EVENT WAS INDUCED BY PENETRATION OF LIGHT TURBULENCE. REDUCTION OF POWER AND DEPLOYMENT OF AIRBRAKES WITH ATTENDANT DECELERATION HALTED THE EVENT. THIS ACFT IS EQUIPPED WITH BLENDED WINGLETS (STC ST01411SE).

FOUND CONTROL LOCK SYSTEM PARTIALLY INOPERATIVE ON POSTFLIGHT INSPECTION, FURTHER INVESTIGATION DETERMINED LEFT AILERON LOCK ARM BROKEN AT LOCK FEATURE CONTACT AREA. CAUSE OF PART FAILURE IS UNKNOWN. PART APPEARS TO HAVE SUFFERED OVERLOADING AT CONTACT POINT, RESULTING IN CRACK, DEVELOPING INTO FAILURE OF THE LOCK ARM. (SEE ATTACHMENT).

AIRCRAFT HAS EXPERIENCED "OFF" FLAGGING OF AIRSPEED AND ALTITUDE ON STANDBY FLIGHT DISPLAY THREE TIMES IN THE LAST 7 MONTHS. STANDBY AIR DATA UNIT HAS BEEN REPLACED WITH AN OVERHAULED UNIT EACH TIME, WHICH HAS RECTIFIED THE ISSUE. (K)