N222DG

ATA 2424

Part: CONTROL UNIT — MALFUNCTIONED (CABIN)

LEFT DEICE ALTERNATOR FAILED IN FLIGHT DURING CLIMB. MAINTENANCE PERSONNEL REPLACED AC CONTROL UNIT. AIRCRAFT RETURNED TO SERVICE. (M)

ATA 3246

Part: WHEEL — DEPARTED (RT MLG)

AFTER LANDING, MAINTENANCE DISCOVERED THAT THE RT MLG WHEEL ASSEMBLY WAS MISSING. AXLE NUT AND SECURING BOLT WERE NOT RECOVERED. NO DAMAGE TO LANDING GEAR AXLE WAS FOUND SO MAINTENANCE INSTALLED ANOTHER WHEEL ASSEMBLY AND RETURNED THE AIRCRAFT TO SERVICE. INVESTIGATION DID NOT REVEAL THE CAUSE OF THE WHEEL SEPARATION.

ATA 3416

Part: ALTIMETER — MALFUNCTIONED (COCKPIT)

FOUND ENCODING ALTIMETER GRAY CODE INOPERATIVE. REPLACED ENCODING ALTIMETER SYSTEM FUNCTION, TESTED GOOD.

ATA 3040

Part: RELAY — FAILED (RIGHT)

WHILE EN ROUTE FROM YVR-OAK, CO-PILOT'S DME INDICATOR DISPLAY WENT BLANK. LATER THE NR 1 DE-ICING GENERATOR FAILURE LIGHT ILLUMINATED ACCOMPANIED BY A SLIGHT SMELL OF SMOKE. CREW MADE A PRECAUTIONARY LANDING IN PDX. THE AIRCRAFT LANDED WITHOUT INCIDENT. REMOVED AND REPLACED NR 2 DME AND NR 1 ISOLATION TRANSFORMER. DURING OPS CHECK WINDSHIELD HEAT C/B POPPED WHEN SELECTED ON HIGH. FOUND NR 2 WINDSHIELD HEAT HI/LOW RELAY SHORTED TO GROUND CAUSING SEVERAL WIRES TO BURN. MAINTENANCE REPAIRED AND REPLACED BURNED WIRING. REMOVED AND REPLACED HI/LOW RELAY. OPS CHECK GOOD. AIRCRAFT RETURNED TO SERVICE. (M)

ATA 2420

Part: TRANSFORMER — FAILED (RIGHT)

WHILE EN ROUTE FROM YVR-OAK, CO-PILOT'S DME INDICATOR DISPLAY WENT BLANK. LATER THE NR 1 DE-ICING GENERATOR FAILURE LIGHT ILLUMINATED ACCOMPANIED BY A SLIGHT SMELL OF SMOKE. CREW MADE A PRECAUTIONARY LANDING IN PDX. THE AIRCRAFT LANDED WITHOUT INCIDENT. REMOVED AND REPLACED NR 2 DME AND NR 1 ISOLATION TRANSFORMER. DURING OPS CHECK WINDSHIELD HEAT C/B POPPED WHEN SELECTED ON HIGH. FOUND NR 2 WINDSHIELD HEAT HI/LOW RELAY SHORTED TO GROUND CAUSING SEVERAL WIRES TO BURN. MAINTENANCE REPAIRED AND REPLACED BURNED WIRING. REMOVED AND REPLACED HI/LOW RELAY. OPS CHECK GOOD. AIRCRAFT RETURNED TO SERVICE. (M)

ATA 7200

Part: ENGINE — FAILED (LEFT)

OAK/YVR - WHILE EN ROUTE WITH MODERATE TURBULENCE AND MODERATE ICING CONDITIONS, LT ENGINE AUTOFEATHERED IN CRUISE. CREW INITIATED AIRSTART PROCEDURES. ENGINE WAS BACK ON-LINE WITH NO PROBLEMS. ENGINE PERFORMED THROUGH THE REMAINDER OF THE FLIGHT WITH NO RECURRENCE. MAINTENANCE INSPECTED ENGINE INTAKE AND EXHAUST, IGNITIION SYSTEM AND GROUND RUN CARRIED OUT. FOUND SATISFACTORY. AIRCRAFT RETURNED TO SERVICE. (X)

ATA 3260

Part: STRIKER PLATE — LOOSE (NLG)

MAF - ON APPROACH INTO MIDLAND, TX, CREW LOWERED LANDING GEAR BUT WAS UNABLE TO GET A POSITIVE DOWN & LOCKED INDICATION FOR NOSE LANDING GEAR. APPROACH ABORTED. GEAR CYCLED SEVERAL TIMES & FOLLOWING THE EMERGENCY PROCEDURES CHECKLIST, CREW WAS ABLE TO DETERMINE GEAR WAS DOWN. ACFT LANDED WITHOUT INCIDENT. ACFT STOPPED AT RUNWAY END. GEAR LOCKS INSTALLED & ACFT WAS THEN TAXIED TO MX. INVESTIGATION REVEALED NLG DOWNLOCK STRIKER PLATE LOOSE. STRIKER PLATE REMOVED, CLEANED & REINSTALLED. LANDING GEAR RETRACTION TESTS PERFORMED TO VERIFY PROPER OPERATION OF LANDING GEAR AND INDICATING SYS. ACFT TEST FLOWN TO ALSO VERIFY PROPER IN-FLT OPER OF LANDING GEAR SYS. NO ADDITIONAL GEAR SYS DISCREPANCIES NOTED. (X)

ATA 4900

Part: DUCT — OUT OF POSITION (APU)

FLT 7378 - MSY - DURING CRUISE CREW STARTED THE APU FOR BACKUP AFTER NOTICING THEIR BATTERIES WERE DISCHARGING. AFTER THE APU WAS STARTED THE FIRE WARNING ALARM WENT OFF. CREW ELECTED TO DISCHARGE FIRE BOTTLE. AIRCRAFT LANDED IN MSY WITHOUT INCIDENT. MAINTENANCE INVESTIGATION REVEALED COOLING DUCT FOR HOT SECTION OUT OF ALIGNMENT. ALIGNED DUCT, APU OPS CHECKED GOOD. PLACARDED PER MEL 26-22-3 CAT C DUE TO LACK OF SPARE FIRE BOTTLE. AIRCRAFT RETURNED TO SERVICE.