N329MX

Part: BATTERY — INOPERATIVE (EMERGENCY LIGHTS) · airframe 13,453 hrs · 15,787 cycles

EMERGENCY LIGHT GO DIM AND THEN OUT. REMOVED AND REPLACED BATTERY AS REQUIRED IAW JOB INSTRUCTION CARD. NO FURTHER OCCURRANCES, NO REPEATS, NO TRENDS. SUSPECT LOW BATTERY POWER. (M)

Part: WINDSHIELD — DEFECTIVE (COCKPIT)

AIRCRAFT RETURNED TO DEN BECAUSE OF A CRACKED RIGHT FRONT WINDSHIELD AS A RESULT OF ENCOUNTERING A HAIL STORM SHORTLY AFTER TAKEOFF. AIRCRAFT LANDED IN DEN WITHOUT FURTHER INCIDENT. DENVER MAINTENANCE INSPECTED THE AIRCRAFT FUSELAGE IAW SRM 53-00-11 AND WINDSHIELD IAW AMM 56-11-00. AIRCRAFT FOUND TO BE SAFE FOR FERRY FLIGHT TO COS. MAINTENANCE REPLACED THE RIGHT FRONT WINDSHIELD, LEFT PROPELLER SPINNER, AND RIGHT PROPELLER SPINNER BULKHEAD. FUSELAGE DAMAGE WAS INSPECTED AND FOUND TO BE WITHIN ACCEPTABLE LIMITS.

Part: INDICATION — MALFUNCTIONED (SPOILER SYST)

CREW REPORTED THAT THEY RECEIVED NO VISUAL EICAS INDICATION THAT THE GROUND SPOILERS WERE ARMED AFTER THE CONDITION LEVERS WERE ADVANCED TO THE TAKEOFF POSITION. CREW ELECTED TO ABORT TAKEOFF AND RETURN TO THE GATE. CONTRACT MAINTENANCE PERFORMED GROUND SPOILER INHIBITION-FUNCTION TEST IAW DO328 MM 27-61-00, NO DEFECTS NOTED.

Part: PRESS SWITCH — DEFECTIVE (HYD COMPART)

EN ROUTE, RECEIVED A CAS MESSAGE EMERGENCY/PARKING BRAKE ACCUMULATOR PRESSURE ALERT. DIVERTED TO COS WHERE MX WAS AVAILABLE. ACFT LANDED WITH NO FURTHER INCIDENT. NOTE: THIS WAS THE SECOND PILOT REPORT OF THE SAME DISCREPANCY IN AS MANY DAYS. MX UNABLE TO DUPLICATE DISCREPANCY. MX SERVICED THE HYDRAULIC RESERVOIR AND RETURNED THE ACFT TO SERVICE. THE CREW REPORTED THE SAME PROBLEM AGAIN ON THE NEXT FLIGHT SEGMENT. DIA MX REPLACED THE HYDRAULIC ACCUMULATOR PRESSURE SWITCH IAW AMM 29-10-00. SINCE PREVIOUS ATTEMPTS TO DUPLICATE THE DISCREPANCY WHILE THE ACFT WAS ON THE GROUND WERE UNSUCCESSFUL, MX REQUESTED A TEST FLIGHT AFTER REPLACEMENT OF THE PRESSURE SWITCH. TEST FLIGHT RESULTS WERE SATISFACTORY.

Part: VALVE — DEFECTIVE (EMER BRAKE SYST)

EN ROUTE, THE FLIGHT CREW REPORTED A PROBLEM WITH THE EMERGENCY/ PARKING BRAKE ACCUMULATOR PRESSURE INDICATION. THIS IS A REPEAT OF SAME PROBLEM EXPERIENCED EARLIER IN THE DAY. REPLACEMENT OF THE PRESSURE SWITCH DID NOT CORRECT THE PREVIOUS DISCREPANCY. THE FLIGHT CREW WAS INSTRUCTED TO DIVERT TO COS WHERE COMPANY PERSONNEL WAS AVAILABLE TO INSPECT THE AIRCRAFT. COS MX REPLACED THE EMERGENCY BRAKE VALVE IAW AMM 32-43-02. OPERATIONAL CHECK WAS SATISFACTORY.

Part: BUSHING — DEFECTIVE (LT MLG)

COS - WHILE ACCOMPLISHING THE LANDING GEAR INSPECTION PORTION OF THE C-CHECK, MAINTENANCE NOTICED THE LEFT MAIN LANDING GEAR AFT TRUNNION BUSHING WAS MIGRATING. MAINTENANCE REPLACED THE BUSHING IAW AMM 32-11-01. CONDUCTED AN OPERATIONAL CHECK IAW AMM 32-10-00. RESULTS WERE SATISFACTORY. (M)

Part: ACTUATOR — DEFECTIVE (LT MLG)

COS - WHILE ACCOMPLISHING THE LANDING GEAR INSPECTION PORTION OF THE C-CHECK, MAINTENANCE NOTICED A SLIGHT AMOUNT OF 'PITTING' ON THE ACTUATOR ROD OF THE LEFT MAIN LANDING GEAR EMERGENCY EXTENSION ACTUATOR. MAINTENANCE REPLACED THE ACTUATOR IAW AMM 32-32-00, AND CONDUCTED AND OPERATIONAL CHECK IAW AMM 32-10-00. SYSTEM FUNCTION WAS NORMAL. (M)

Part: WARNING — ACTIVATED (SPOILER SYST)

DURING THE TAKEOFF ROLL, THE FLIGHT CREW WAS ALERTED BY A GROUND SPOILERS NOT STOWED CAS MESSAGE. CREW ABORTED THE TAKEOFF AND RETURNED TO THE GATE. MX CONDUCTED A THROUGH INSPECTION OF THE AIRCRAFT AS WELL AS PERFORMING AN OPERATION CHECK OF THE GROUND SPOILER SYSTEM IAW AMM 27-61-00, NO DEFECTS NOTED. MX UNABLE TO DUPLICATE THE DISCREPANCY AIRCRAFT RETURNED TO SERVICE. SUSPECT FLIGHT CREW ERROR, THEY DID NOT ALLOW ENOUGH TIME WHEN THE POWER LEVERS WERE FULLY ADVANCED FOR THE SYSTEM TO ARM ITSELF. MX HAS RECEIVED NO FURTHER REPORTS OF ANY DIFFICULTIES SINCE THE AIRCRAFT WAS RELEASED FOR SERVICE OCTOBER 30, 1997.

Part: PROBE — DEFECTIVE (LT ENGINE)

EN ROUTE, THE FLIGHT CREW NOTICED THIER WAS NO LOW PRESSURE COMPRESSOR SPEED (NL) INDICATION FOR THE LEFT ENGINE. MAINTENANCE CONTROL ADVISED THE CREW TO DIVERT TO COS WHERE REPAIRS COULD BE MADE. AIRCRAFT LANDED WITHOUT FURTHER INCIDENT AT COS. COS MX REPLACED THE LEFT ENGINE NL PROBE IAW AMM77- 14-01. ENGINE GROUND RUNS WERE SATISFACTORY.

Part: WINDOW — DEFECTIVE (RT COCKPIT)

COS - FLT 1125 - FLT 1114 - EN ROUTE FROM DRO TO COS, CREW REPORTED A FAILURE OF THE FIRST OFFICERS DIRECT VISION WINDOW, CREW DESCENDED TO A LOWER ALTITUDE AND REDUCED CABIN PRESSURIZATION AS PER COMPANY PROCEDURES. AIRCRAFT LANDED COS WITHOUT FURTHER PROBLEMS. COS MAINTENANCE REPLACED F/O'S DV WINDOW IAW DO328 MM 56-12-00. AIRCRAFT RETURNED TO SERVICE. (M)

Part: UPLOCK — MALFUNCTION (MLG)

FLT 3517 - AIRCRAFT RETURNED TO FIELD AFTER CREW WAS ALERTED TO MLG NOT UP AND LOCKED INDICATION. AIRCRAFT LANDED COS WITHOUT FURTHER INCIDENT. COS MAINTENANCE CLEANED AND LUBRICATED BOTH LT AND RT MLG UPLOCK ROLLERS, AND RELEASED AIRCRAFT FOR FUNCTION TEST FLIGHT. TEST FLIGHT RESULTS NOT SATISFACTORY. COS MAINTENANCE REPLACED BOTH LT AND RT MLG UPLOCK ASSEMBLIES IAW AMM TR 32-167 (SB 328-32-183). GROUND OPERATIONAL CHECK OF LANDING GEAR 'GOOD'. AIRCRAFT RETURNED TO SERVICE. (X)