N421MA

Part: GOVERNOR — LEAKING (RT ENGINE) · airframe 30,620 hrs · 36,043 cycles

THE PILOT WAS EN-ROUTE AND WAS ACQUIRING TEND MONITORING DATA AND NOTICED THAT THE RT ENGINE HAD EXCESSIVELY HIGH OIL TEMPERATURE. THE PILOT FOLLOWED THE ABNORMAL PROCEDURES CHECKLIST AND PERFORMED AN IN-FLIGHT SHUTDOWN OF THE RT ENGINE. HE RETURNED TO DEPARTURE AND DECLARED AN EMERGENCY AND LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED AND TROUBLESHOT THE RT ENGINE AND DISCOVERED THE RT PROPELLER GOVERNOR HAD EXTERNAL LEAKS. MAINTENANCE REMOVED THE PROPELLER GOVERNOR PN 897410-16, SN 1488586 AND INSTALLED A SERVICEABLE UNIT. PERFORMED RIGGING AND LEAK CHECKS AND OPERATION WAS NORMAL WITH OIL TEMPERATURE AND PRESSURES WITHIN LIMITS. NO SUBSEQUENT DIFFICULTIES HAVE BEEN REPORTED.

Part: FRAME — CRACKED (FUSELAGE) · airframe 25,031 hrs · 29,079 cycles

CRACKS FOUND ON LT AND RT SIDES OF FUSELAGE FRAME, DURING LETTER CHECK E AT FS 407.271.

Part: FRAME — CRACKED (FUSELAGE) · airframe 25,031 hrs · 29,079 cycles

CRACKS FOUND ON LT AND RT SIDES OF FUSELAGE FRAME, P/N 27-22109-017, DURING LETTER CHECK E AT FS 422.271.

Part: FRAME — CRACKED (ZONE 100) · airframe 25,031 hrs · 29,079 cycles

CRACKS FOUND ON LT AND RT SIDES OF FUSELAGE FRAME, P/N 27-22104-046, DURING LETTER CHECK E AT FS 392.271.

Part: SAS SERVO — FAILED (RIGHT)

FLT 3482 - DURING TAXI, ELEVATOR JAMMED WHILE CREW PERFORMED FLIGHT CONTROL CHECK. TAKEOFF ABORTED. MAINTENANCE REMOVED AND REPLACED SAS SERVO. OPS CHECK GOOD. (M)

Part: ACTUATOR — FAILED (RT MLG)

FLT 3479 - ON APPROACH INTO DTW, RIGHT MAIN GEAR DID NOT INDICATE DOWN AND LOCKED. CREW CYCLED GEAR TWICE AND DID GET DOWN AND LOCKED INDICATION. AIRCRAFT LANDED IN DTW WITH NO INCIDENT. MAINTENANCE REPLACED RIGHT OUTBOARD MAIN LANDING GEAR ACTUATOR. (M)

Part: DOWNLOCK SWITCH — FAILED (RT MLG)

FLT 3038 - ON APPROACH INTO STC, GEAR WAS CYCLED SIX TIMES TO GET GREEN DOWN INDICATION ON RIGHT SIDE. MAINTENANCE REPLACED MAIN LANDING GEAR DOWN LOCK SWITCH. (M)

Part: RIB — CHAFED (WS 27)

DURING A SCHEDULED INSPECTION IN MSP, THE LEFT WS 27 AFT FLAP WELL RIB P/N 27-31080 WAS FOUND CHAFFED BY THE FLAP SWING LINK. BLENDED OUT CHAF DAMAGE AND INSTALLED A REPAIR DOUBLER AS PER EA 01-96132, AND LAR 92-MALA-107. (M)

Part: WARNING LIGHT — ILLUMINATED (CABIN DOOR)

FLT 3451 - IN CRUISE FLIGHT TO AZO, THE CABIN DOOR LIGHT ILLUMINATED IN FLIGHT. THE AIRCRAFT DIVERTED TO AZO. MAINTENANCE INSPECTED THE CABIN DOOR SWITCHES AND BAYONETS. NO DISCREPANCIES NOTED. MAINTENANCE WAS UNABLE TO DUPLICATE THE DISCREPANCY. ALL CHECKS SATISFACTORY. (M)

Part: RIB — CRACKED (WS 27.03)

DURING A SCHEDULED INSPECTION IN MSP, MAINTENANCE FOUND AT WS 27.03 RIGHT AFT WING RIB TRAILING EDGE (P/N 27-31523), A .25 INCH CRACK. COMPLETED REPAIR PER FAC SRM 57-90-10 PAGES 3-6, REV NOV 1/94 BY INSTALLING A 4 INCH BY 2.5 INCH REPAIR DOUBLER TO AFFECTED AREA. (M)

Part: ANGLE — CRACKED (RT WING/NACELLE)

DURING A SCHEDULED INSPECTION IN MSP, MAINTENANCE FOUND THE RIGHT INBOARD LOWER WING TO NACELLE ATTACH ANGLE CRACKED. COMPLETED REPAIR TO ATTACH ANGLE BY FABRICATING AND INSTALLING REPAIR ANGLE IAW FAIRCHILD ARP 54-20-9101 REV B. (M)

Part: ANGLE — CRACKED (RT WING/NACELLE)

DURING A SCHEDULED INSPECTION IN MSP, MAINTENANCE FOUND THE RIGHT OUTBOARD UPPER WING TO NACELLE ATTACH ANGLE CRACKED IN TWO LOCATIONS. FABRICATED NEW ANGLE USING LIKE MATERIAL AND THICKNESS. INSTALLED ANGLE IAW FAIRCHILD SRM 51-00-00 PAGE 4 'PART FOR PART REPLACEMENT', 51-30-02, 51-40-01, AND 51-40-02 REV JUN 1/93. (M)

Part: FRAME — CRACKED (BS 147)

DURING A SCHEDULED INSPECTION IN MSP, MAINTENANCE FOUND RELIEF RADIUS CRACKED AT LOWER RIGHT SIDE OF BELT FRAME AT FS 147. COMPLETED REPAIR TO BELT FRAME 147 RIGHT SIDE BY STOP DRILLING CRACK, FABRICATING AND INSTALLING REPAIR DOUBLER IAW FAC SRM 53-90-20 PAGES 83-85. (M)

Part: DOOR FRAME — DAMAGED (BS 491)

DURING A SCHEDULED INSPECTION IN MSP, MAINTENANCE PERFORMED A REPAIR TO THE CARGO DOOR FRAME, P/N 27-22085, AT FS 491.00 BY REMOVING DAMAGED GAS STRUT MOUNT HOLE (1.625 BY 1.825). FABRICATED, PREPPED AND INSTALLED A REPAIR ANGLE, REPAIR PLATE, AND FILLER IAW FAIRCHILD ARP 53-20-9503 DATED MARCH 1. (M)

Part: COMPENSATOR — MALFUNCTIONED (TE FLAPS)

FLT 3140 - ON CLIMB-OUT FROM DTW, THE SAS FAULT LIGHT ILLUMINATED. THE AIRCRAFT RETURNED TO DTW. MAINTENANCE REPLACED THE SAS FLAP COMPENSATOR AND THE ANNUNCIATOR PANEL. (M)

Part: DOOR FRAME — CRACKED (BS 438.06)

MSP - DURING AN INSPECTION, FOUND AN APPROXIMATE .575 INCH CRACK IN THE CARGO DOOR FRAME PN 27-22085 AT FS 438.060. REPAIRED DAMAGE BY REMOVING DAMAGED GAS STRUT MOUNT HOLE (1.625 INCH BY 1.825 INCH), FABRICATING, TREATING, AND INSTALLING A REPAIR ANGLE, REPAIR PLATE, AND FILLER IAW FAIRCHILD ARP 53-20-9503. (X)

Part: SKIN — DENTED (FS 512-530.8)

DURING AN INSPECTION IN MSP, FOUND FUSELAGE SKIN DENTED AFT OF CARGO DOOR BETWEEN FS 512 AND FS 530.810, JUST BELOW WL 75. DENTED AREA DIMENSIONS 8 INCHES BY .375 INCHES. FABRICATED A REPAIR DOUBLER (13 INCHES BY 5.25 INCHES ) AND INSTALLED IAW FAIRCHILD SRM 53-90-20 REPAIR NR 14, PGS 61-64. WEIGHT AND BALANCE CHANGE IS NEGLIGIBLE. (M)

Part: SWITCH — DIRTY (NLG)

FLT NR 3369 - DURING APPROACH TO DTW, THE NOSE GEAR DOWN AND LOCKED LIGHT DID NOT ILLUMINATE UPON GEAR EXTENSION. THE CREW RECYCLED THE GEAR TWICE AND THE LIGHT ILLUMINATED. THE AIRCRAFT CONTINUED TO DTW AND LANDED WITHOUT INCIDENT. MAINTENANCE PERSONNEL CLEANED THE NOSE GEAR POSITION SWITCHES. ALL SYSTEMS OPERATED SATISFACTORILY. (M)

Part: DNLOCK SPRING — WORN (RT MLG)

FLT NR 3236 - DURING APPROACH TO MSP, THE RIGHT MAIN LANDING GEAR GREEN DOWN AND LOCKED LIGHT DID NOT ILLUMINATE FOR 30 SECONDS AFTER THE GEAR WAS SELECTED DOWN. MAINTENANCE PERSONNEL WERE UNABLE TO DUPLICATE THE DISCREPANCY, BUT REPLACED THE DOWNLOCK SPRINGS AS A PRECAUTION. ALL SYSTEMS OPERATED SATISFACTORILY. (M)

Part: CORNER — CRACKED (PAX DOOR)

DURING A SCHEDULED INSPECTION IN MSP, MAINTENANCE NOTED A CRACK IN THE PASSENGER DOOR AT THE LEFT CORNER AT THE NUT PLATE FOR THE HAND RAIL BRACKET. REPAIRS WERE COMPLETED BY REPLACING THE CORNER, P/N 27-24044-010 IAW FAC SRM 51-00-00 PG 4 AND 51-40-01. (M)

Part: DOUBLER — WORN (WS 27)

DURING SCHEDULED MAINTENANCE IN MSP, THE RIGHT FLAP WALKING BEAM ROLLER DOUBLER, LOCATED AT WS 27.0 WAS FOUND TO BE WORN. REPAIRS WERE COMPLETED BY REPLACING THE DOUBLER, P/N 27-31141, IAW FAC SRM 57-90-10 PAGES 45 AND 46, AND FAC ARP 57-20-9424. (W)

Part: WIRE — DEFECTIVE (NLG STEERING)

FLT 3065 - DURING THE LANDING ROLL IN DTW, AT APPROXIMATELY 40 KNOTS, THE AIRCRAFT VEERED TO THE RIGHT WITH THE NOSE WHEEL STEERING BUTTON PUSHED. THE AIRCRAFT CONTINUED TO THE GATE. MAINTENANCE REPAIRED A DEFECTIVE WIRING SECTION. SYSTEM OPERATED SATISFACTORILY. (Z)

Part: SERVO VALVE — FAILED (NLG STEERING)

FLT 3398 - DURING THE LANDING ROLL IN LEX, BELOW 90 KTS, THE AIRCRAFT VEERED TO THE RIGHT. MAINTENANCE REPLACED THE NOSE WHEEL STEERING SERVO. SYSTEM OPERATED SATISFACTORILY. (W)

Part: UPPER FRAME — DENTED (CARGO DOOR)

DURING ROUTINE MAINTENANCE IN MSP, MAINTENANCE FOUND THE CARGO DOOR UPPER FRAME DENTED. REMOVED FRAME AND INSTALLED NEW FRAME. WORK COMPLETED IAW FAIRCHILD SRM 51-00-00 PG 4 FOR PART REPLACEMENT. (W)

Part: RPM GAUGE — MALFUNCTIONED (LT)

LNK - FLT 3222 - IN CRUISE, THE LT RPM GAUGE BEGAN TO FLUCTUATE. NO OTHER ENGINE FLUCTUATIONS NOTED. THE ACFT RETURNED TO MSP. MAINTENANCE WAS UNABLE TO DUPLICATE THE DISCREPANCY. THE SYSTEM OPERATED SATISFACTORILY DURING A TEST FLIGHT. (W)