112/​114Commander

Parts most often named Spar (9) · Rib (1)

SPAR IS CRACKED AND BROKEN OUT AT UPPER HINGE ATTACH POINT. THIS SPAR WAS REPLACED WITH NEW 1-1-99 FOR SAME CONDITION. THIS CONDITION WAS FOUND BY CLOSE EXAMINATION OF AREA DURING ANNUAL INSPECTION. WE ARE IN RECEIPT OF INFORMATION OF SAME FAILED CONDITION ON [S/N removed]. RECOMMEND THAT DOUBLER BE INSTALLED TO STRENGTHEN SPAR IN THIS AREA. (K)

CRACKS FOUND ADJACENT TO UPPER HINGE BRACKET ATTACH HOLES ON RUDDER SPAR. FOUR CRACKS FOUND, EACH BETWEEN .7500 INCH AND 1 INCH LONG. ONE WAS VISIBLE, OTHERS FOUND USING DYE PENTRANT. CRACKS CANNOT BE SEEN WITHOUT REMOVAL OF THE HINGE BRACKET.

DURING ANNUAL INSPECTION, FOUND RUDDER SPAR CRACKED ON EDGE OF ALUMINUM SPACERS MOUNTED UNDER TOP RUDDER HINGE. CRACK SEEMS TO ORIGINATE FROM EDGE OF ALUMINUM SPACERS POSSIBLY FROM FLEXING IN THIS AREA. THIS IS A VERY HARD AREA TO SEE WELL DURING NORMAL INSPECTION AND MAJORITY OF THE CRACK WAS HIDDEN BY THE EDGE OF THE SPACER. CRACK WAS DISCOVERED WHEN RUDDER WAS REMOVED FOR UNRELATED MAINTENANCE.

Parts most often named Bolt (3) · Drag Link (1) · Actuator (1)

(CAN) DURING TAKEOFF THE OWNER REPORTED WHEN GEAR WAS SELECTED UP THE LT AND RT MAIN GEAR CAME UP BUT THE NOSE GEAR STILL INDICATED DOWN AND LOOKED. THE PILOT SELECTED GEAR DOWN AND THE MAINS CAME DOWN AND LOOKED AND THE NOSE GEAR REMAINED DOWN AND LOOKED, THE ACFT LANDED WITHOUT INCIDENT. LANDING GEAR WAS INSPECTED AND THE UPPER DRAG LINK WAS FOUND BROKEN WHERE THE NOSE GEAR HYD ACTUATOR CONNECTS TO THE UPPER DRAG LINK CAUSING THE GEAR TO NOT RETRACT DURING GEAR RETRACTION ON TAKEOFF.

(CAN) AT THE ANNUAL INSPECTION THE NOSE GEAR WAS INSPECTED THE UPPER BOLT THAT HOLDS THE NOSE GEAR ACTUATOR IN PLACE WAS SHEARED BUT STILL IN PLACE. THE LOWER BOLT WAS BENT. NEW BOLTS INSTALLED, AN4-10 BOLTS, ACFT RETURNED TO [S/N removed].

(CAN) SELECTED GEAR UP AFTER TAKEOFF AND NOSE GEAR DIDN`T RETRACT: SELECTED GEAR DOWN AND LANDED WITH 3 GREEN INDICATING UPON INSP OF NOSE GEAR FOUND THE BOLT THAT ATTACHES NOSE GEAR ACTUATOR TO NOSE GEAR DRAG BRACE SHEARED: INSTALLED NEW BOLT, CARRIED OUT SEVERAL RETRACTION: ACFT RELEASED TO [S/N removed].

Parts most often named Switch (3) · Socket (1)

FOUND NOSE GEAR MICROSWITCH INSTALLED TO FULL FORWARD LIMIT ON MOUNTING BRACKET. BRACKET MOUNTED ON ENGINE MOUNT WITH HOSE CLAMPS. FOUND BRACKET INSTALLED TOO FAR AFT. THIS PREVENTED PROPER ADJUSTMENT OF MICROSWITCH WHICH WAS MAKING CONTACT WITH PAINTED SURFACE ON TOP OF NOSE GEAR. ADJUSTED BRACKET AND MICROSWITCH TO PROPER LOCATION. NO INFORMATION ON BRACKET ADJUSTMENT IN MM. BRACKET NOT SHOWN IN PARTS MANUAL.

LEFT MLG DOWNLOCK SWITCH FAILED TO CLOSE GIVING NO GEAR DOWN INDICATION. FOUND SWITCH INOPERATIVE. REPLACED SWITCH. AIRCRAFT LANDED WITHOUT INCIDENT. RECOMMEND STURDIER SWITCH.

(CAN)WHILE CARRYING OUT FLIGHT TEST AFTER AN INSPECTION THE RIGHT HAND GEAR LIGHT FAILED TO ILLUMINATE. PILOT TAPPED THE SOCKET AND THE LIGHT CAME ON. ALL THREE POSITION LIGHT SOCKETS WERE FOUND TO BE LOOSE AND THEREFORE NEW PARTS WERE ORD ERED FOR THE AIRCRAFT.

Parts most often named Bolt (1) · Actuator (1) · Drag Brace (1) · Brace (1)

PILOT REPORTED NORMAL LANDING. THEN LOST CONTROL OF AIRCRAFT. AIRCRAFT CAME TO REST OFF THE LT SIDE OF THE RUNWAY, LT MAIN GEAR COLLAPSED. LT MAIN GEAR, UPPER DRAG BRACE SPLIT IN TWO. SUSPECTED METAL FAILURE, DUE TO IMPURTIES AND FATIGUE.

(AUS) NOSE LANDING GEAR RETRACTION RAM TO NOSE LANDING GEAR STRUT SEPARATED DUE TO BOLT, NUT, WASHER AND SPLIT PIN SECURING THE TWO ITEMS COMING LOOSE.

ON TAKEOFF FROM LUK, PILOT HEARD A LOUD CRACK AT GEAR RETRACTION. NOSE GEAR WOULD NOT RETRACT. PILOT CYCLED GEAR DOWN AND LANDED WITHOUT INCIDENT. JACKED AIRCRAFT AND FOUND UPPER DRAG BRACE CRACKED. REPLACED WITH NEW UNIT.

Parts most often named Drag Brace (1) · Landing Gear (1) · Torque Tube (1)

THE NOSE LANDING GEAR DRAG BRACE FAILED AND IS DETERMINED TO BE THE PRIMARILY CAUSE OF THE FAILURE OF THE NOSE GEAR DOWN AND LOCKED POSITION AND THE FALSE INDICATION TO THE PILOT. PILOT STATED WHEN HE LOWERED THE LANDING GEAR TO LAND HE INITIALLY RECEIVED TWO MAIN GEAR DOWN AND LOCKED GREEN LIGHTS, HE THEN CYCLED THE GEAR HANDLE AND THEN RECEIVED THREE GREEN LIGHTS, AN INDICATION THAT ALL LANDING GEAR ARE DOWN LOCKED. UPON LANDING THE AIRCRAFT THE NOSE LANDING GEAR COLLAPSED SHORTLY AFTER TOUCHDOWN.

Parts most often named Clamp (1) · Riser (1) · Stack (1)

TURBO SYSTEM INSTALLED IAW STL, BOTH LT AND RT EXHAUST RISERS HAD MANY CRACKS AND DEEMED UNSERVICEABLE. 207.8 HRS SINCE NEW, REPLACED UNITS FAILED IN 140.0 MORE. (K)

EXHAUST SLIP JOINT SEIZED AFTER COMPLIANCE WITH SB, CAUSING BUCKLING OF NR 3 STACK. WRONG CLAMP WAS PROVIDED BY MFG AND FIT ONLY ON THE SLIP JOINT. SHOWED CLAMP ON SLIP JOINT AND MAY HAVE CAUSED SEIZING AND BUCKLING.

DURING ANNUAL INSPECTION, NOTICED THE ENGINE EXHAUST STACK PN 9910758-101 WAS CHAFING ON ENGINE MOUNT PN 625-000-501 AT THE TUBE THAT CONNECTS THE RIGHT LOWER ENGINE MOUNT BRACKET AT THE FIREWALL WITH THE RIGHT NOSE GEAR TRUNNION MOUNT. TUBE WAS WORN APPROXIMATELY .035 INCH FROM .750 INCH NOMINAL OUTSIDE DIAMETER. CLAMP PN Q5200M645 USED TO SUPPORT STACK WAS MISSING, BUT SPRING AND BRACKET USED IN CONJUNCTION WITH CLAMP WERE INTACT. SUSPECT CLAMP LOOSENED.

Parts most often named Hose (1) · Actuator (1) · Fitting (1)

REAR ATTACH BOLT FAILURE ON NOSE GEAR RETRACT SERVO. WE [S/N removed] 3 COMMANDER 114'S AND ALL THREE HAVE THE SAME PROBLEM. ONE FAILED COMPLETELY CAUSING THE NOSE GEAR TO EXTEND ABOVE EXTENSION SPEED, THE OTHER TWO WERE FOUND TO BE BENT AT ANNUAL INSPECTION.

STRATOFLEX HOSE NR 111-4, CURE DATE 3Q92, FULLY DETERIORATED WHILE INSTALLED ON BELGIAN REGISTERED AIRCRAFT. NO OTHER CASES FOUND WITH INSTALLED HOSES. THIS PART WAS BOUGHT THROUGH GILL AVIATION, VIA AVIALL. HOSE INSTALLED ON A ROCKWELL 112, WITH LYC IO-360-C1D6. TT EST. 700 HOURS. RECOMMEND THAT OPERATERS WITH LIKE HOSE INSPECT FOR CURE DATE AND NOTE CONDITION OF HOSE ASSY. (X)

RIGHT MAIN GEAR INBOARD HYDRAULIC FITTING BROKE. COMPLETE LOSS OF HYDRAULIC FLUID, FITTING WAS RUBBING ON WING SPAR SUPPORT BRACKET. THIS FAILURE HAPPENED AT 20 INCHES BELOW AIR TEMP. (X)

Parts most often named Magneto (2) · Gear (1)

NYLON DRIVE GEAR WORN AND DECOMPOSED DUE TO WATERY CHEMICAL WITHIN MAGNETO CASE. COULD HAVE BEEN CAUSED BY A PRESSURE WASHER AFTER AN OIL CHANGE OR OTHER [S/N removed] OR MAINTENANCE. (X)

SECOND SET OF MAG'S FOUND WITH THIS CRACK PATTERN. NEW STYLE CASE HAS A FIN WEB TO STRENGTHEN CASE IN THIS AREA. CRACKS HAVE BEEN FOUND ON BOTH SIDES THROUGH CASE HOLE.

Parts most often named Spar (3)

DURING THE ACCOMPLISHMENT OF SL-114-17 A SMALL HAIRLINE CRACK WAS DISCOVERED. THE CRACK IS APPROX. 2.35" IN LENGTH, ON THE RT ELEVATOR SPAR, BELOW THE OUTBOARD ELEVATOR HINGE ATTACH POINT. THE AREA OF CONCERN IS LOCATED ON THE RH ELEVATOR 69.35 FROM C/L & FS 275.122.

UPON REPLACEMENT OF OUTBOARD HINGE ATTACHMENT OF RT ELEVATOR, CRACKS WERE FOUND IN SPAR. INSPECTION OF LT ELEVATOR REVEALED SAME CRACKS ONLY WORSE. CRACKS ARE FOUND BY BOLT HOLES FOR OUTBOARD HINGE ATTACHMENTS. CRACKS CAN BE SEEN THROUGH HOLES IN OUTBOARD RIB WITH FLEXIBLE LIGHT, AFTER TIP IS REMOVED.

Parts most often named Wire (1) · Diode (1)

THIS ACFT MANUFACTURED 9-97 WITH TT OF 73.6 HRS WAS REPORTED TO HAVE ELECTRICAL PROBLEMS SUCH AS FLUCTUATING OIL TEMP, PULSATING INSTRUMENT PANEL LIGHTS, AND A POSITION LIGHT C/B SWITCH THAT WOULD NOT RESET. ALSO, ALTERNATOR NOISE IN HEADSETS. AFTER INSPECTION, NOTED NUMEROUS HEAVY GAUGE WIRINGS ON AIR CONDITIONING MODULE INSTALLATION WERE FOUND LOOSE, SOME OF WHICH THE LOCKWASHERS WERE NOT CRUSHED. ALSO, NUMEROUS C/B SWITCHES AND PUSH/PULL TYPE C/B'S WERE NOT SECURELY FASTENED TO THE BUSS BARS.