N946AS

Part: ENGINE — FAILED (RIGHT) · airframe 49,016 hrs · 28,076 cycles

AIRCRAFT RETURNED, RT ENGINE FAILED. CAPTAIN REPORTED DURING TAKE OFF AT 111 KNOTS, RT ENGINE EXPERIMENTED AN EXPLOSION WITH DROPPED OF PARAMETERS AND LOW FUEL FLOW, REACHED 770 DEGREES (F). DURING MAINTENANCE REVISION, RT ENGINE WAS DETECTED WITH FAN JAMMED BY HIGH TEMPERATURE, T3 AND T4 SECTION WITH BLADES DAMAGED IN 90 PERCENT AND NGV´S DAMAGED. RT ENGINE WAS REPLACED IAW MM 71-00-00, TEST CORRECT. FURTHER INFORMATION ABOUT ENGINE FAILURE ANALYSIS WILL BE SENT AS SUPPLEMENT.

Part: ENGINE — OVERTEMP (LEFT) · airframe 48,997 hrs · 28,064 cycles

CAPTAIN REPORTED THAT DURING TAKE OFF AT HMO, LT ENGINE EGT INDICATION REACHED 610 DEGREES (C) DURING 40 SECONDS AND DURING CLIMB (TAIL COMP HIGH) LIGHT TURNED ON. HIGH TEMPERATURE PROCEDURE WAS PERFORMED IAW MM 72-00-00 AND (TAIL COMP HIGH) LIGHT TURNED OFF. DURING OVERNIGHT SERVICE, PNEUMATIC LEAKS CHECK WAS PERFORMED IAW MM 72-00-00 AND 36-10-00, NO LEAKS WERE DETECTED AND EGT WAS WITHIN LIMITS.

Part: CONNECTOR — DIRTY · airframe 48,931 hrs · 28,024 cycles

AIRCRAFT RETURNED OF FLIGHT, "ANTENNA FAIL" LIGHT TURNED ON AND CAPTAIN TURNED OF RADAR. ANTENNA CONNECTOR WAS CLEANED AND CIRCUIT BREAKER WAS RESEATED IAW MM 34-41-01, AND AIRCRAFT WAS REFUELED, ALL CORRECT. DURING OVERNIGHT SERVICE, CONNECTOR WAS CLEANED IAW 31-10-04 AND WIRING WAS CHECKED IAW MM 34-43-02, TEST CORRECT IAW MM 34-41-00.

Part: IGNITER BOX — FAILED (NR 1 ENGINE)

AIRCRAFT RETURNED TO PLATFORM DUE TO LT ENGINE IGNITION IN (OVER) AND (GROUND) POSITION IS OUT OF SERVICE. IGNITION BOX WAS REPLACED AND TESTS WERE PERFORMED IAW MM 74-10-01, ALL OK.

Part: PITOT LINE — OBSTRUCTED (PITOT STATIC SYS)

AIRCRAFT SUSPENDED TAKEOFF AT 120 KTS, BECAUSE OF 40 KT DIFFERENCE BETWEEN IAS/MACH SPEED INDICATORS. LT INDICATED 80 KTS AND RT INDICATED 120 KTS. CADCS WERE TESTED FOUND ALL CORRECT. DURING PITOT TUBES REVISION WAS DETECTED A BEE IN THE CAPTAIN PITOT TUBE. LINES WERE BLOWING WITH AIR AND OPERATIONAL TEST WERE PERFORMED IAW MM34-11-00. ADDITIONALLY, HIGH ENERGY STOP CONDITIONS INSPECTION WAS PERFORMED IAW MM 05-57-00, ALL CORRECT.(K)

Part: EXCITER — FAILED (NR 1)

AIRCRAFT RETURNED TO PLATFORM DURING ENGINE NUMBER ONE STARTING, IT DID NOT HAD IGNITION. EXCITER IGNITION BOX WAS REPLACED IAW MM 74-10-01, ALL CORRECT.

Part: DISK — DAMAGED (RT ENGINE)

FLT 907 - MTY-MEX - DURING OVERNIGHT CHECK, DETECTED RIGHT ENGINE DAMAGED FOR FOD, WITH 2 BLADES OUT OF LIMITS IN THE FIRST STAGE COMPRESSOR. THE BOROSCOPIC INSPECTION WAS PERFORMED AND THE C1 DISK WAS REPLACED IAW MM 72-00-33, ALL CORRECT. THE RIGHT ENGINE WAS STARTED IAW MM 71-00-00, ALL TESTS CORRECT. (M)

Part: SOLENOID — FAILED (NR 2 ENGINE)

DURING ENGINE START THE (APPROACH IDLE FUSE) MESSAGE COMES ON, THE ENGINE NR 2 IS MORE ACCELERATED THAN ENGINE NR 1. THE RIGHT SOLENOIDE WAS REPLACED IAW MM, TEST CORRECT IAW MM.

Part: WARNING LIGHT — ILLUMINATED (LT ENGINE)

AIRCRAFT RETURN TO PLATFORM, BECAUSE OF OSCILATION OF 0.08 IN LEFT ENGINE EPR INDICATOR. THE TX EPR WAS REPLACED IAW MM, TEST CORRECT.

Part: PUMP — FAILED (HYD SYSTEM)

FLT 945 - MTY-MEX - AIRCRAFT RETURNED TO PLATFORM AS A CONSEQUENCES OF LEFT ENGINE HYDRAULIC PUMP OUT OF SERVICE WITH ZERO PRESSURE INDICATION. LEFT ENGINE HYDRAULIC PUMP WAS REPLACED IAW MM 29-10-05, ALL CORRECT. (M)

Part: SENSOR — FAILED (HORIZ STAB)

AIRCRAFT RETURN TO FLIGHT AS A CONSEQUENCE OF STABILIZERS MOVEMENT ALARM, STABILIZER MOVEMENT SENSOR WAS REPLACED, TESTS WERE PERFORMED IAW MM.

Part: GYRO — FAILED (E/E BAY)

FLT 443 - HMO-MZT - AIRCRAFT RETURNED TO PLATFORM AS CONSEQUENCE OF ANTI-SKID LIGHTS AND FLAG ON ATT IN ADI RIGHT. SWITCH S1-130 WAS CLEANED AND VERTICAL GYRO WAS REPLACED, FAIL WAS CORRECTED, TESTS OK. THE S1-130 SWITCH WAS REPLACED AND ANTI-SKID SYSTEM WAS CHECKED IAW MM 32-43-00 AND 34-23-01. (M)

Part: LIGHT — DEFECTIVE (CABIN)

SEA - DURING MAINTENANCE CHECK, THE FORWARD PORTABLE EMERGENCY LIGHT WAS FOUND INOPERATIVE. REPLACED THE LIGHT ASSEMBLY AND OPERATED NORMALLY. (M)

Part: BATTERIES — DISCHARGED (CABIN)

SEA - DURING MAINTENANCE CHECK, THE FORWARD PORTABLE EMERGENCY LIGHT WAS FOUND INOPERATIVE. REPLACED THE BATTERIES AND OPERATED NORMALLY. (M)

Part: FRAME — CRACKED (BS 1418)

OAK - DURING C-CHECK, A CRACK WAS FOUND IN FRAME AT LONGERON 2R AT Y1418. INSTALLED DOUBLER PER ASA EA 5310-01499. (M)

Part: BATTERY PACK — DISCHARGED (CABIN)

PDX - L-1 AND R-1 DOOR OVERHEAD EMERGENCY EXIT LIGHTS INOPERATIVE. REPLACED BATTERY PACK AND LIGHTS OPERATED NORMALLY. (M)

Part: FUEL HEAT DUCT — BROKEN (RT ENGINE)

SEA - AIR TURN BACK OF FLT 300, CREW REPORTED THE RIGHT ENGINE FIRE WARNING LIGHT ILLUMINATED DURING INITIAL CLIMB, LIGHT EXTINGUISHED WHEN POWER BROUGHT TO IDLE. LIGHT REMAINED OFF AT APPROACH POWER OF 1.4 EPR. REPLACED BROKEN FUEL HEAT DUCT ON RIGHT ENGINE, ACCOMPLISHED RUN UP AND OPERATED NORMALLY. (M)

Part: BATTERY PACK — DISCHARGED (CABIN)

SEA - DURING MAINTENANCE CHECK, THE EMERGENCY FLOOR TRACK LIGHTS IN THE AFT CABIN WERE FOUND DIM. REPLACED THE BATTERY PACK AND OPERATED NORMALLY. (X)

Part: EEL BATTERIES — DISCHARGED (CABIN)

SEA - DURING MAINTENANCE CHECK, THE FORWARD OVERWING EMERGENCY EXIT SIGN LIGHTS WERE FOUND INOPERATIVE. REPLACED THE BATTERIES AND LIGHTS OPERATED NORMALLY. (M)

Part: CNTL VALVE — DEFECTIVE (LANDING GEAR)

PDX - FLT 561 - ON ARRIVAL, THE CREW REPORTED THE LANDING GEAR DID NOT EXTEND DURING APPROACH, ALL GEAR POSITION LIGHTS WERE RED AND GEAR WARNING HORN ON. ACCOMPLISHED GO-AROUND AND LANDING GEAR EXTENDED NORMALLY ON SECOND APPROACH. REPLACED THE LANDING GEAR CONTROL VALVE AND ACCOMPLISHED GEAR SWING, LANDING GEAR OPERATED NORMALLY. (W)