N5102

ATA 3417

Part: COMPUTER — MALFUNCTIONED · airframe 5,171 hrs · 2,523 cycles

WHILE IN CRUISE AT 45,000 FEET EXPERIENCED A .05 DECREASE IN MACH ON BOTH LT AND RT PRIMARY FLIGHT DISPLAYS, AN AOA STICK SHAKER ACTIVATION, A LEFT AND RIGHT ENGINE BLUE (LTD DISPATCH) MESSAGE, A BLUE (R ENG BU ADC) MESSAGE, AND AN AMBER (L-ICE DET FAIL) CAS MESSAGE. ANALYSIS REVELED A FAULTY NR 2 MADC AND NR 2 TAT PROBE. REMOVED AND REPLACED NR 2 TAT PROBE. REMOVED AND REPLACED NR 2 MADC. COMPLIED WITH OPERATIONAL CHECKS, NO FURTHER DEFECT NOTED. RETURNED AIRCRAFT TO SERVICE.

ATA 2741

Part: ACTUATOR — INOPERATIVE (STAB TRIM)

CREW REPORTED RECEIVING A (FLAP STAB INOP) MESSAGE DURING CLIMB, AFTER SELECTING FLAPS TO THE UP POSITION. IT WAS DISCOVERED THAT THE HORIZONTAL STABILIZER ACTUATOR NO-BACK MECHANISM HAD TRIPPED CAUSING THE ACTUATOR TO OPERATE IN THE DOWN DIRECTION ONLY. INCORPORATION OF ASC145A, WHICH INTRODUCES AN IMPROVED ACTUATOR, WILL BE ACCOMPLISHED WHEN PARTS BECOME AVAILABLE, AS DEFINED INT HE ASC. CONDITION WAS CORRECTED BY RESETTING AND OPERATIONALLY CHECKING THE NO BACK DEVICE AS INSTRUCTED IN THE MM. FOLLOWING A SUCCESSFUL SERIES OF OPS CHECKS AS INSTRUCTED IN THE MM PROCEDURES. AIRCRAFT WAS RETURNED TO SERVICE. (K)

ATA 3231

Part: DOOR — BINDING (LT MLG) · airframe 3,942 hrs · 1,888 cycles

WHEN LANDING GEAR WAS RETRACTED AFTER TAKEOFF, THE LT MLG DOOR REMAINED OPEN. LANDING GEAR WAS CYCLED IAW AFM. THE DOOR WOULD CLOSE WITH THE GEAR SELECTED DOWN BUT WOULD REMAIN OPEN WITH IT SELECTED UP. LT WHEEL WELL, DOOR, UPLOCK, LINKAGE AND PLUMBING WERE INSPECTED FOR DAMAGE, NO DAMAGE FOUND. LANDING GEAR SWING IDENTIFIED LT LANDING GEAR FAIRING DOOR TO WING SKIN GAP TO BE INSUFFICIENT AND CAUSING IB DOOR TO NOT SEQUENCE CLOSED. MLG DOOR CLEARANCE PROVIDED IAW MM. LANDING GEAR OPS CHECKS IAW MM ARE GOOD. AIRCRAFT WAS RETURNED TO SERVICE. (CNTL NR: GM 05-001) (K)

ATA 7230

Part: COMPRESSOR WHEEL — OUT OF BALANCE (LT ENGINE)

DURING CLIMB, OUT OF KDTW, THE LEFT ENGINE AMBER 'VIBRATION EXCEEDANCE' CAS MESSAGE WAS RECEIVED. POWER ON THE LT ENGINE WAS REDUCED, IAW THE AFM, AND THE MESSAGE EXTINGUISHED. THERE FORE, THE TRIP CONTINUED TO DESTINATION AND AACI MX PROVIDER AT KDTW WAS CONTACTED. LEFT ENGINE FAN BALANCE WEIGHT WAS REINSTALLED IN THE INCORRECT POSITION AFTER NDT INSPECTION OF FAN HUB. ENGINE VIBRATION EXCEEDANCE INSPECTIONS HAVE BEEN COMPLETED PER THE BR710 MAINTENANCE MANUAL CHAPTER 71-00-00. FUEL TUBE NR 20 HAS BEEN REPLACED PER THESE INSTRUCTIONS. NO DISCREPANCIES NOTED DURING THESE REQUIRED INSPECTIONS. THE LT ENGINE FAN WAS BALANCED PER THE TRIM BALANCE PROCEDURES IN THE BR710 MAINTENANCE MANUAL CHAPTER 71-00-00

ATA 2612

Part: CONTROL UNIT — MALFUNCTIONED (LT FIRE CONTROL)

TAKEOFF WAS ABORTED, DUE TO A RED LT LOOP "B" OVERHEAD LEGEND AND ASSOCIATED CAS MESSAGE. PERFORMED ENGINE FIRE WARNING SYSTEM MALFUNCTION CHECKLIST. SYSTEM CHECKED PROPERLY. LT FIRE CONTROL BOX MALFUNCTIONED, REPLACED LT FIRE CONTROL BOX. OPERATION NORMAL.

ATA 3150

Part: DAU — FAILED (CHANNEL 1A)

FAIL AMBER LIGHT CAME ON DURING CLIMB OUT AT 12,000 FEET. DAU 1A CHANNEL FAILURE. NEEDS FURTHER TROUBLESHOOTING. (REPORT NR G02-32)

ATA 5270

Part: SWITCH — OUT OF ADJ (DOOR)

KLAS - AFTER LEAVING KLAS AT APPRO FL450, THE RED DOOR WARNING LIGHT ILLUMINATED. AIRCRAFT RETURNED TO KLAS, PASSING THOUGHT 8000 FEET ON DESCENT. THE LIGHT EXTINGUISHED. AIRCRAFT INSPECTED AND DEFERRED PER MEL 52-1 FOR RETURN TO DTW. ADJUSTED AFT UPPER SWITCH PER GULFSTREAM MM. (M)

ATA 7830

Part: COMPUTER — INCORRECT (ELECTRONICS RACK)

AFTER DEPLOYING AND STOWING THE THRUST REVERSERS THE THRUST REVERSER MISCOMPARE ANNUNCIATOR ILLUMINATED MOMENTARILY. APPARENT CAUSE WAS DCU DATA LATCH UP. CONFIRMED BOTH T/RS TO BE STOWED PROPERLY AND RESET DCU, NR 1 AND NR 2 WITH NO FURTHER OCCURRENCE.