N135DE

ATA 2121

Part: BLOWER — SMOKE (COCKPIT) · airframe 6,037 hrs · 4,475 cycles

PILOT REPORTED MEDICAL CREW SMELLED SMOKE IN CABIN. SMOKE OBSERVED COMING FROM OVERHEAD VENTS. CABIN FAN CIRCUIT BREAKER OPENED AND SMOKE DISSIPATED. PRECAUTIONARY LANDING MADE. COCKPIT BLOWER ASSY SEIZED AND INOP WITH HEAT DISTRESS. MAINTENANCE REPLACED THE COCKPIT BLOWER AND BLOWER CONTROL TRANSISTOR, GROUND OPS CHECK SATISFACTORY.

ATA 2121

Part: BLOWER — FAULTY (ZONE 200) · airframe 5,974 hrs · 4,429 cycles

DURING THE DESCENT, WE NOTICED WE WERE SMELLING SMOKE FUMES IN COCKPIT. WE SUSPECTED FUMES FROM STABILIZER WING HEAT AND TURNED THOSE OFF. THE ODOR PERSISTED ON AND OFF, AFTER THAT WE DECIDED BEST COURSE OF ACTION WAS TO CONTINUE DESCENT AND LAND, WE ALSO STARTED USING O2 MASKS. ONCE ON THE GROUND WE WERE ABLE TO TROUBLESHOOT PROBLEM FURTHER. THE COCKPIT BLOWER WAS CREATING THE SMOKE FUMES AND WAS INITIALLY MEL'D. MAINTENANCE REPLACED THE COCKPIT BLOWER, OPS CHECKED AND CLEARED MEL BEFORE THEY HAD ANY ADDITIONAL FLIGHTS.

ATA 3260

Part: BULB — BURNED OUT (MLG INDICATOR) · airframe 4,769 hrs · 3,624 cycles

AIR WAS ENTERING DOWNWIND LEG AT AMA, AT APPROPRIATE TIME GEAR DOWN WAS CALLED FOR. LANDING GEAR SELECTED DOWN, LEFT MAIN DID NOT INDICATE DOWN "NO GREEN". LANDING GEAR WAS CYCLED BACK UP THEN BACK DOWN. UPON 2ND GEAR DOWN ATTEMPT ONLY THE NOSE WHEEL INDICATED DOWN. AT GEAR DOWN ATTEMPT FO REPORTED "POP". CREW REQUESTED FLYBY OF AMA TOWER. TOWER REPORTED RIGHT GEAR APPEARED DOWN HOWEVER AN AMERICAN EAGLE FLIGHT ON LEFT SIDE OF AIRCRAFT REPORTED THAT LEFT GEAR DID NOT APPEAR TO BE DOWN AND LOCKED. GEAR WAS RETRACTED AND CAPTAIN ELECTED TO RETURN TO ABQ. NORMAL FLIGHT BACK TO ABQ. DECLARED EMERGENCY WITH ABQ APPROACH, EXTEND GEAR NORMALLY REQUESTED FLYBY OF TOWER AND MAINTENANCE. AFTER GEAR WAS REPORTED

ATA 5297

Part: WIRE — SHORTED (FS STA 245.9)

FLIGHT CREW REPORTED THE PASSENGER/CREW DOOR LOCK ACTUATOR WAS INOPERATIVE; DOOR ACTUATOR CB WAS OPEN. CB WAS CLOSED, DOOR OPERATION WAS NORMAL. DURING LAST STOP OF TRIP, WHILE CLOSING DOOR CB OPENED AGAIN AND DOOR WARNING ANNUNCIATOR LIGHT ILLUMINATED. MAINT FOUND PLASTIC FLEX TUBE PN 2311503-6 WHICH ENCLOSES LWR DOOR WIRING AT AIRFRAME SIDE HAD BROKEN AT POINT IT SLIPPED OVER PN321503-12 DURING DOOR OPERATION. EVENTUALLY, WIRE INSULATION WORE AWAY AND WIRES SHORTED TO METAL CONDUIT TUBE. WIRES THAT WERE DAMAGED ARE M1B20, M4A20M, AND W58B22. AC IS EQUIPPED WITH OPTION 36 IN DOOR, HOWEVER 24 INCH DOOR INSTALL IS SIMILAR. DAMAGED WIRES WERE LOCATED UNDER THE CABIN FLOOR IN AREA DIFFICULT TO INSPECT. (K)

ATA 2910

Part: ELBOW — LOOSE (HYD LINE) · airframe 3,740 hrs · 2,870 cycles

LOST ALL HYDRUALIC PRESSURE IN FLIGHT, AUX PRESSURE WORKED OK. FOUND HYDRUALIC LEAK IN LEFT MAIN GEAR WELL AIRFRAME FITTING TO RETRACT SIDE OF MAIN GEAR ACTUATOR. TIGHTENED FITTING TO RETRACT ACTUATOR PER LEARJET MAINTENANCE MANUAL 20-30-00, SERVICED RESERVIOR PERFORMED RETRACTION AND EXTENSION FUNCTION CHECK OF LANDING GEAR PER LEARJET MAINTENANCE MANUAL 32-33-00 APGE 201, SERVICED EMERGENCY AIR BOTTLE AND PERFORMED OPERATIONAL CHECK OF ENGINE DRIVEN HYDRUALIC PUMPS, ALL SYSTEMS FUNCTION CHECK SATISFACTORY AIRCRAFT RETURNED TO SERVICE.AIRCRAFT RETURNED TO SERVICE.

ATA 3010

Part: GASKET — LOOSE (CABIN)

WHILE AT ALTITUDE, THE PILOTS TURNED ON THE WING AND HORIZONTAL STABILIZER ANTI-ICE SYSTEM, ONCE ENGAGED THE CREW IMMEDIATELY SMELLED 'BURNING RUBBER' AND HEARD A SOUND OF RUSHING AIR IN THE CABIN. THE WING STAB HEAT SWITCH WAS IMMEDIATELY TURNED OFF. INVESTIGATION REVEALED AN OPEN GAP OF APPROXIMATELY .125 INCH BETWEEN FLANGES WHERE TWO SECTIONS MATE TOGETHER ON THE STEEL TRANSVERSE DUCT ASSY. THE FLANGE WAS PROPERLY SEATED, THE SYSTEM TESTED AND THE AIRCRAFT WAS RETURNED TO SERVICE. (M)

ATA 7230

Part: SEAL/RING — LEAKING (HP COMPRESSOR)

ABQ - AIRCRAFT EXPERIENCED SMOKE IN CABIN IMMEDIATELY AFTER TAKEOFF. FLIGHT CREW FOLLOWED EMERGENCY PROCEDURES AND LANDED WITHOUT INCIDENT. BORESCOPE INSPECTION OF RIGHT ENGINE REVEALED 4/5 BEARING SEALS LEAKING OIL INTO COMPRESSOR SECTION. RIGHT ENGINE WAS REMOVED FROM SERVICE. NOTE: THIS IS A FOLLOW-UP REPORT SUBMITTED 10-23-95.

ATA 2140

Part: BUTT-SPLICE — BURNED (CABIN HEAT SYS)

LEAR JET WIRING MANUAL 21-42-00, PAGE 7, AUXILIARY CABIN HEAT SYSTEM. WIRE NR HC47A10T, A 10-GAUGE WIRE, IS BUTT-SPLICED TO A 16-GAUGE WIRE AT THE AUXILIARY HEAT RELAY PANEL. THE BUTT-SPLICE AND THE 16-GAUGE WIRE OVERHEATED CAUSING THE PLASTIC TO MELT ON THE SPLICE AND MAKES THE 16-GAUGE WIRE BROWN. THIS IS THE SECOND OCCURRENCE OF OVERHEATING AT THIS SPLICE.