N940AE

ATA 7261

Part: PUMP — FAILED (RT ENGINE)

BNA - FLT 406 - DURING FLT, THE RT ENG OIL LIGHT CAME ON, ENG OIL PRESS FELL TO ZERO. THE RT ENG WAS SHUT DOWN. THE AC RETURNED TO BNA AND LANDED WITHOUT INCIDENT. INSP REVEALED ENG OIL TANK WAS EMPTY. NO EVIDENCE OF LEAKAGE NOTED. THE REAR TURBINE BEARING HOUSING AND RT FLAP EXH TRAIL SHOWED EVIDENCE OF BURNED OIL. THE ENG WAS REMOVED AND SHIPPED TO ALLIED SIGNAL FOR INVEST. THE RT ENG WAS R/R. THE TEARDOWN REPORT STATES, RT ENG FAILED AS A RESULT OF FOD DAMAGE TO THE TURBINE OIL SCAVENGE PUMP. DEFECTIVE PARTS WERE REPLACED AND THE ENGINE WAS RETURNED TO SERVICE.

ATA 3210

Part: CYLINDER — CRACKED (MLG)

RADIUS ROD, PN 1847/E, SN LK-90001622 WAS SENT IN FOR SCHEDULED OVERHAUL. FLUORESCENT PENETRANT INSPECTION OF CYLINDER, PN 184811, SN 677, REVEALED A CRACK INDICATION. INDICATION APPEARS TO START AT THE EDGE OF THE UNDERCUT FOR THE DOWNLOCK THREADS, AND PROGRESSES ON DOWN INSIDE THE BORE APPROXIMATELY 0.900 INCH, RUNNING ALONG THE FORGING FLASH LINE TOWARD THE MICROSWITCH MOUNTING BOSS. SUBJECT CYLINDER HAS BEEN RETURNED TO APPH FOR INVESTIGATION.

ATA 5320

Part: EDGE MEMBER — CRACKED (BS 485)

MQY - A 3 INCH CRACK WAS FOUND DURING INSPECTION OF THE RUDDER QUADRANT STRUCTURE P/N 137390C415. THE CRACK WAS IN THE EDGE MEMBER P/N 137390C120 WHICH SECURES THE SKINS AND BULKHEADS TOGETHER. THE CRACK IS CAUSED BY THE P/N 137370E6 D-WASHER (PACKER) WHICH IS CHAFING AGAINST THE RADIUS OF THE EDGE MEMBER P/N 137390C120. THE D-WASHER IS USED TO ASSIST IN ATTACHING THE RUDDER ARTIFICAL FEEL BUNGEES. THE EDGE MEMBER WAS REPLACED AND THE D-WASHER WAS RE-WORKED TO ENSURE A CORRECT FIT IN RELATION TO THE EDGE MEMBER RADIUS. THE AIRCRAFT RETURNED TO SERVICE. PART TC: 16,556.(X)

ATA 3250

Part: PISTON — LEAKING (NLG STEERING)

STEERING JACK, PN 6182/3, SN SJA-414, WAS RECEIVED WITH COMMENT 'MASSIVE HYDRAULIC LEAK AROUND PISTON - PISTON SHEARED'. PISTON ROD, PN 618212, HAD FAILED AT THE TRANSITION RADIUS AT THE TERMINATION OF THE INSIDE DIAMETER THREADS ON THE END WHERE END FITTING, PN 618213 IS ATTACHED. TIME SINCE OVERHAUL WAS REPORTED TO 2,006.0 HOURS. FAILED PISTON ROD HAS BEEN RETURNED TO APPH FOR INVESTIGATION.

ATA 3251

Part: ACTUATOR — FAILED (NLG STEERING)

AIRCRAFT WAS TAXIING FROM GATE, LOST NOSE WHEEL STREERING. AIRCRAFT TAXIED BACK TO GATE USING DIFFERENTIAL POWER. INSPECTION REVEALED THAT THE STEERING ACTUATOR SHAFT HAD SHEARED AT THE ROD END. PART SHALL BE RETURNED TO VENDOR FOR EVALUATION/REPAIR. THE AIRCRAFT WAS FERRIED TO BNA FOR MAINTENANCE. THE ACTUATOR ASSY WAS REPLACED AND THE AIRCRAFT RETURNED TO SERVICE WITHOUT FURTHER INCIDENT. (M)

ATA 2910

Part: LINE — FAILED (RT NACELLE)

BNA - FLT 402 - A/C WAS AT CRUISE, EN ROUTE TO ALT FROM BNA, APPROX 35 MINUTES INTO THE FLIGHT BOTH HYDRAULIC PRESSURE GAUGES STARTED TO FLUCTUATE AND THEN WENT OT ZERO PRESSURE. THE A/C INCURRED A HYD SYSTEM FAILURE. THE A/C RETURNED TO BNA. AN EMERGENCY LANDING WAS DECLARED AN THE LANDING GEAR AND FLAPS WERE ACTIVATED BY MEANS OF THE EMERGENCY HYD SYSTEM. THE A/C LANDED AND RETURNED SAFELY TO THE GATE. THE RIGHT HYD PUMP RETURN LINE HAD RUPTURED AS A RESULT OF CHAFING THE COMPRESSOR DRAIN LINE. THE LINE WAS REPLACED AND ALL ALSO NR 1 AND NR 2 ENGINE DRIVEN HYD PUMPS. THE SYSTEM FILTERS WERE INSPECTED AND REPLACED. NO EVIDENCE OF METAL NOTED. THE ENTIRE A/C HYD SYSTEM WAS BLED IAW THE A/C MM. GEAR, F

ATA 6114

Part: HUB — STRIPPED (PROPELLER)

BNA - DURING PROPELLER INSTALLATION, NOTICED ONE NUT WOULD NOT TORQUE PROPERLY. FURTHER INVESTIGATION REVEALED THE PROPELLER HUB MOUNTING STUD WAS BEING PULLED OUT OF THE HUB. SUSPECTED CAUSE, FAILURE OF THE STUD THREADS IN THE HUB. INSTALLED SERVICEABLE PROPELLER. PROPELLER SN 902435 RETURNED TO OVERHAUL FACILITY FOR HUB REPAIR. (X)

ATA 7712

Part: SIG CONDITIONER — MALFUNCTIONED (RT ENGINE)

BNA - FLT 4686 - PILOT RT ENGINE FAILED TO RESPOND TO POWER LEVER MOVEMENTS. RT ENGINE WAS SHUTDOWN, AC RETURNED TO BNA AND LANDED WITHOUT INCIDENT. FOUND TORQUE INDICATOR CIRCUIT BREAKER TRIPPED. RESET CIRCUIT BREAKER SYSTEM OPERATIONAL CHECKED NORMAL. REPLACED TORQUE SIGNAL CONDITIONER AS A PRECAUTION.

ATA 7320

Part: P2-T2 SENSOR — FAILED (LT ENG)

FLT 4580 - BNA - ON CLIMB-OUT THE LEFT ENGINE TQ AND FUEL FLOW SURGED. THE LEFT ENGINE WAS SHUT DOWN, THE CREW DECLARED AND EMERGENCY AND LANDED BACK AT BNA WITHOUT INCIDENT. REPLACED LEFT ENGINE P2-T2 SENSOR. (Z)