N446MA

Part: ACTUATOR — OUT OF ADJUST (LT MLG)

AFTER TAKEOFF FROM ANC, THE GEAR WERE SLOW TO RETRACT AND THE RIGHT MAIN GEAR INDICATED UNSAFE. AFTER CYCLING THE GEAR TWICE MORE, THE GEAR STILL INDICATED UNSAFE. THE A/C RETURNED TO ANC. MX INSPECTED AND CLEANDD THE DOWN SUPPLY LINE AND REPLACED MAIN HYDRAULIC FILTER. THE GEAR WAS CYCLED TEN TIMES AND THE SYS OPS CHECK GOOD. LEAK CHECK WAS ALSO GOOD AND THE A/C WAS RETURNED TO SERVICE AND A/C DEPARTED TO BET. ON APPROACH TO BET, THE LEFT MAIN GEAR INDICATED UNSAFE. THE GEAR WAS CYCLED THREE TIMES BEFORE THE GEAR INDICATED DOWN AND LOCKED. THE AIRCRAFT LANDED AT BET WITHOUT INCIDENT. THE AIRCRAFT WAS FERRIED BACK TO ANC FOR MAINTENANCE. MAINTENANCE AT ANC ADJUSTED THE OUTBOARD ACTUATOR AND PERFORMED

Part: FUEL CONTROL — FAILED (RT ENGINE)

DURING TAKEOFF ROLL OUT OF ANC, THE RIGHT ENG TORQUE INDICATIONS BEGAN FLUCTUATING. THE PILOT ABORTED THE TAKEOFF AND RETURNED TO MAINTENANCE WITH THE AIRCRAFT. MAINTENANCE PERFORMED A GROUND RUNUP CHECK AND ISOLATED THE PROBLEM TO THE RIGHT FUEL CONTROL UNIT. THE RIGHT FUEL CONTROL WAS REMOVED AND REPLACED WITH A SERVICEABLE FUEL CONTROL UNIT. GROUND RUNS WERE ACCOMPLISHED AND ALL ENGINE PARAMETERS OPERATED NORMALLY. THE AIRCRAFT WAS RELEASED FROM SERVICE. (M)

Part: SKIN — CHAFED (TE FLAP)

DURNG AN INSPECTION IN MSP, MAINTENANCE FOUND A CHAF THE LEFT FLAP INBOARD TRAILING EDGE. REPAIRS WERE COMPLETED IAW FAC REPAIR MANUAL 57-90-60 REPAIR NR 1 PAGES 3-6. (M)

Part: SKIN — CHAFED (LT TE FLAP)

DURING AN INSPECTION IN MSP, MAINTENANCE FOUND A CHAFF IN THE LEFT FLAP INBOARD TRAILING EDGE. REPAIRS WERE COMPLETED IAW FAC STRUCTURAL REPAIR MANUAL 57-90-60 PAGES 3-6. (M)

Part: ANGLE — DAMAGED (WING/NACELLE)

DURING A SCHEDULED INSPECTION IN MSP, MAINTENANCE FOUND RIGHT OUTBOARD UPPER NACELLE TO WING TRANSIT ANGLE HAD FASTENER PULLING THROUGH SKIN. COMPLETED REPAIR BY FABRICATING AND WET INSTALLING REPAIR DOUBLER IAW ARP 54-20-9101 REV B DATED MAY 12, 1993 AND FAIRCHILD SRM CHAPTERS 51-30-02, 51-40 AND 51-30-03. (M)

Part: TORQUE TUBE — DAMAGED (ELEVATOR)

DURING A SCHEDULED INSPECTION IN MSP, MAINTENANCE FOUND THE ELEVATOR TORQUE TUBE ROD END HOLES TO BE ELONGATED. COMPLETED REPAIR TO ELEVATOR P/N 27-44001-161 S/N FAC-345 BY REPLACING ELEVATOR TORQUE TUBE WITH SAME P/N 27-44026-007 WITH NEW PART. ALL WORK COMPLETED IAW FAC MM 27-30-00 PAGES 202-203. (M)

Part: FORMER — CRACKED (LT NACELLE)

DURING A SCHEDULED INSPECTION IN MSP, MAINTENANCE FOUND NACELLE UPPER FORMER CRACKED. STOP DRILLED CRACKS AND INSTALLED REPAIR DOUBLER AS PER FAC SRM 51-90-02 PAGE 5, REF. (M)

Part: SWITCH — FAILED (NLG)

FLT 3078 - ON APPROACH TO MSP, THE NOSE GEAR INTRANSIT LIGHT FAILED TO ILLUMINATE UPON GEAR EXTENSION. ALL OTHER INDICATIONS WERE NORMAL. THE AIRCRAFT CONTINUED TO MSP. MAINTENANCE REPLACED THE LEFT UPPER POSITION SWITCH. ALL CHECKS WERE SATISFACTORY. (M)

Part: CORNER — CRACKED (PASSENGER DOOR)

MSP - DURING AN INSPECTION, MAINTENANCE PERSONNEL NOTED PASSENGER DOOR LOWER FORWARD CORNER CRACKED AT SNUBBER ATTACH PLATE. REMOVED AND REPLACED DOOR CORNER, P/N 27-4044-010, AND DOOR CORNER SUPPORT, P/N 27-24150-403, IAW FAC SRM 51-00-00, PAGE 4, AND SRM 51-40-01. (X)

Part: BRAKE — WORN (RT MLG)

FLT 3089 - WHILE TAXIING IN DTW, THE CREW NOTED THAT THE RIGHT BRAKE WOULDN'T HOLD PRESSURE. MX REPLACED THE RIGHT INBOARD AND OUTBOARD BRAKE ASSEMBLIES. ALL CHECKS GOOD. (M)

Part: SWITCH — FAILED (RT MLG)

FLIGHT NR 3078 - INBOUND TO MSP, THE CREW NOTED THE LEFT MAIN GEAR INTRANSIT LIGHT WAS INTERMITTENT. THE AIRCRAFT CONTINUED TO MSP AND LANDED WITHOUT INCIDENT. MAINTENANCE PERSONNEL REPLACED THE LEFT MAIN GEAR UP POSITION SWITCH. ALL SYSTEMS OPERATED SATISFACTORILY. (M)

Part: EMERGENCY PIN — OUT OF POSITION (GEAR SELECTOR)

MSP - FLT 3002 - ON CLIMB-OUT FROM MSP, LANDING GEAR WOULD NOT RETRACT. THE AIRCRAFT RETURNED TO MSP. MAINTENANCE REPOSITIONED THE EMERGENCY PIN IN THE EMERGENCY GEAR SELECTOR TO THE NORMAL POSITION. SYSTEM OPERATED SATISFACTORILY. (X)

Part: SWITCH — FAILED (LT MLG)

FLT 3214 - ON APPROACH TO MSP, THE LT GEAR INTRANSIT LIGHT FAILED TO ILLUMINATE DURING GEAR EXTENSION. ALL OTHER GEAR INDICATIONS WERE NORMAL. MAINTENANCE REPLACED THE LT MLG UPLIMIT AND BOTH DOWNLOCK SWITCHES. SYSTEM OPERATED SATISFACTORILY. (X)

Part: ENGINE — MALFUNCTIONED (RIGHT)

FLIGHT NR 3213 - ON CLIMB-OUT FROM MSP, THE RIGHT ENGINE TORQUE BEGAN TO INDICATE IN EXCESS OF 120 PERCENT. THE AIRCRAFT RETURNED TO MSP. MAINTENANCE REPLACED THE ENGINE. INVESTIGATION IS CONTINUING. (M)

Part: GEAR POS IND — FAILED (NLG)

FLT NR 3214 - ON APPROACH TO MSP, THE NOSE GEAR GREEN LIGHT DIDN'T ILLUMINATE WHEN THE GEAR WAS SELECTED DOWN. THE CREW CYCLED THE GEAR BUT THE LIGHT FAILED TO ILLUMINATE. MAINTENANCE REPLACED THE LANDING GEAR POSITION INDICATOR AND THE NOSE GEAR DOWNLOCK SWITCHES AS A PRECAUTION. ALL SYSTEMS OPERATED SATISFACTORILY DURING A TEST FLIGHT. (M)

Part: SWITCH — OUT OF ADJUST (NLG)

FLT RN 3214 - ON APPROACH TO MSP, NO GEAR DOWN AND LOCKED INDICATION WAS RECEIVED FROM THE NOSE GEAR POSITION AFTER GEAR EXTENSION. THE CREW CYCLED THE GEAR UNTIL A DOWN AND LOCKED INDICATION WAS RECEIVED. MAINTENANCE REPOSITIONED THE DOWN AND LOCKED SWITCH ON THE NOSE GEAR. SYSTEM OPERATED SATISFACTORILY. (M)

Part: FIRE WIRE — SHORTED (RT ENGINE)

FLT NR 3334 - EN ROUTE, THE RIGHT ENGINE FIRE LIGHT BECAME DIMLY VISIBLE. THE AIRCRAFT RETURNED TO DTW. MAINTENANCE REPAIRED A SHORTED WIRE TO THE SIDE FIRE DETECTOR. ALL SYSTEMS OPERATED SATISFACTORILY DURING GROUD RUNS. (M)

Part: FUEL CONTROL — OUT OF ADJUST (LT ENGINE)

FLIGHT 3485 - DURING THE TAKEOFF ROLL IN DTW, THE LEFT ENGINE WAS SLOW TO MAKE STANDARD POWER. AFTER V, POWER DROPPED TO 80 PERCENT. WHEN SPEEDS WERE BROUGHT BACK TO 100 PERCENT ON THE LEFT ENGINE, THE TORQUE JUMPED TO 105 PERCENT AND THE BYPASS LIGHT CAME ON. THE AIRCRAFT RETURNED TO DTW. MAINTENANCE ADJUSTED THE LEFT ENGINES SCREW X TO RELIEVE OVERSPEED GOVERNOR INTERFERENCE IAW FAC MM 71-00-30. (M)

Part: BOOT — WORN (RT ENGINE)

MSP - FLT 3218 - ON CLIMB-OUT, RIGHT ENGINE FIRE LIGHT BEGAN TO FLICKER. THE AIRCRAFT RETURNED TO MSP. MAINTENANCE REPLACED A RUBBER BOOT FOR THE FIRE DETECTOR LOCATED AT THE ENGINE CASE. SYSTEM OPERATED SATISFACTORILY. (X)

Part: PROP GOVERNOR — FAILED (RT ENGINE)

FLT 3268 - DURING CRUISE, CREW NOTED A THUMPING NOISE FROM THE RT ENGINE, FOLLOWED BY A LOSS OF 200 RPM. THE FLIGHT CONTINUED TO MSP WITHOUT FURTHER INCIDENT. MAINTENANCE REPLACED THE RT PROP GOVERNOR. THE SYSTEM OPERATED SATISFACTORILY. (W)

Part: FRAME — CRACKED (PAX DOOR)

DURING A SCHEDULED INSPECTION IN MSP, MAINTENANCE FOUND THAT THE PASSENGER DOOR FRAME HAD CRACKS IN THE NUTPLATE AREA FOR THE DOOR HANDRAIL MOUNTS. COMPLETED REPAIR TO PASSENGER DOOR FRAME BY REPLACEMENT OF FOUR AFT LOWER CORNERS P/N 27-24044-009 AND 27-24044-010 IAW FAC SRM 51-00-00 PG 4 AND 51-40-01, 51-40-02 AND 51-30-04. REFERENCE NR MALA954492.

Part: RIB — CRACKED (WS 99.51)

DURING A SCHEDULED INSPECTION IN MSP, MAINTENANCE FOUND CRACK ON RT WING RIB, OUTBOARD OF FLAP CENTER HINGE, WS 99.510. COMPLETED REPAIR TO WING TRAILING EDGE RIB STATION 98.38 BY BLENDING OUT DAMAGE. INSTALLED REPAIR DOUBLER P/N 27-31086-022. ALSO, INSTALLED DOUBLER ONTO RIB P/N 27-31085-024, IAW 57-90-10 FAC SRM AND FAC DRAWING 27C36075. (M)

Part: FRAME — CRACKED (FS 332.27)

DURING A SCHEDULED INSPECTION IN MSP, MECHANICS FOUND A .125 INCH CRACK AT RELIEF RADIUS IN LOWER BELT FRAME OF CONSTANT SECTION AT FS 332.27 RIGHT SIDE, P/N 27-22093-103. REPAIRED BY INSTALLING REPAIR DOUBLER IAW FAC SRM 53-90-20 REPAIR 319. (M)

Part: STRUCTURE — DAMAGED (RT NACELLE)

DURING A SCHEDULED INSPECTION IN MSP, MAINTENANCE FOUND RT NACELLE INBOARD LOWER FORMER, NS 99.79, CRACKED AT LOWER KEELSON ATTACH FLANGE. COMPLETED REPAIRS TO RT NACELLE. REPLACED SKIN P/N 27-35112-2-03, ANGLE 27-31128-016, FORMER 27-35025-968. REPAIRED FORMER P/N 27-35043-010 AT NS 109.89, AND FORMER P/N 27-35023-025 AT NS 99.79 DUE TO CRACKS AT FLANGES. WORK DONE IAW FAC SRM 51-00-00 PG 4, 51-40-01, 51-30-04, 51-30-03, 51-90-02, FIG 2 PG 5, AND ARP 51-70-9132. REPLACED LOOSE FASTENERS IAW FAC 95-MALA-155 IN AREA OF DRAG BRACE BRACKET. (M)

Part: FRAME — CRACKED (PAX DOOR)

DURING A SCHEDULED INSPECTION IN MSP, MAINTENANCE FOUND THAT THE PASSENGER DOOR FRAME HAD CRACKS IN THE NUTPLATE AREA FOR THE DOOR HANDRAIL MOUNTS. COMPLETED REPAIR TO PASSENGER DOOR FRAME BY REPLACEMENT OF FOUR AFT LOWER CORNERS P/N 27-24044-009 AND 27-24044-010 IAW FAC SRM 51-00-00 PG 4 AND 51-40-01, 51-40-02 AND 51-30-04. 95ZZZM214.

Part: SKIN — DENTED (FS 422.27)

MSP - DURING SCHEDULED INSPECTION, MAINTENANCE FOUND A SMALL DENT IN THE LEFT SIDE OF THE FUSELAGE FORWARD OF THE REAR CARGO DOOR AT FS 422.27 AND STR 11. REPAIRS COMPLETED BY INSTALLING A REPAIR DOUBLER AND FILLER PIECE IAW FAC SRM 51-90-04, REPAIR NR 2. (X)

Part: FRAME — CRACKED (FS 189.06)

MSP - DURING A SCHEDULED INSPECTION IN MSP, MAINTENANCE FOUND A .125 INCH CRACK AT RELIEF RADIUS IN LOWER BELT FRAME OF CONSTANT SECTION AT FS 189.06, LT SIDE, PN 27-22093-105. REPAIRED BY INSTALLING REPAIR DOUBLER IAW FAC SRM 53-90-20, REPAIR NR 19. (X)

Part: COOLING TURBINE — SEIZED (RT WING)

TVF - FLT 3446 - IN CRUISE FLIGHT, CREW NOTED THE RIGHT BLEED WAS PRODUCING SMOKE IN THE CABIN AND COCKPIT. THE CREW PERFORMED QUICK REFERENCE HANDBOOK PROCEDURES AND DIVERTED TO MJI. MAINTENANCE REPLACED THE RIGHT COOLING TURBINE. SYSTEM OPERATED SATISFACTORILY. (X)

Part: DOOR FRAME — CRACKED (FS 441.06)

MSP - DURING SCHEDULED INSPECITON, AFT CARGO DOOR FRAME FOUND CRACKED AT FS 441.06. REPAIRS WERE COMPLETED BY REPLACING DAMAGED AREA WITH A REPAIR DOUBLER IAW FAC LAR-95-MALA-052. (X)

Part: DOOR FRAME — CRACKED (FS 438.06)

DURING A SCHEDULED INSPECTION IN MSP, THE AFT CARGO DOOR FRAME WAS CRACKED AT FS 438.06. REPAIRS WERE COMPLETED BY REMOVING THE DAMAGED AREA, INSTALLING A REPAIR DOUBLER IAW FAC LAR-95-MALA-052. (Z)

Part: ALTIMETER — MALFUNCTIONED (NR 1)

FLT 3144 - AFTER TAKEOFF FROM DTW, THE NR 1 ALTIMETER AND ALTITUDE ALERTER FLAGGED. THE AIRCRAFT RETURNED TO DTW. MAINTENANCE WAS UNABLE TO DUPLICATE THE DISCREPANCY. AS A PRECAUTION, THE NR 1 ALTIMETER WAS REPLACED. SYSTEM OPERATED SATISFACTORILY. (Z)

Part: BELLCRANK SPRING — WEAK (RT MLG)

DTW - FLT 3445 - ON APPROACH, RT MAIN GEAR DID NOT EXTEND. THE CREW CYCLED GEAR AND PROBLEM REMAINED. THE CREW PERFORMED AN EMERGENCY GEAR EXTENSION AND LANDED WITHOUT INCIDENT IN DTW. MAINTENANCE REPLACED RT MLG BELLCRANK SPRING. SYSTEM OPERATED SATISFACTORILY. (X)