N294SC

Part: SWITCH — INTERMITTENT (SPEED BRAKES) · airframe 63,650 hrs · 33,197 cycles

DURING TAKEOFF ROLL, TAKEOFF WARNING OCCURRED, ABORTED TAKEOFF. RESET FLAPS, TRIM, SPEED BRAKE AND COULD NOT DUPLICATE. FOUND INTERMITTANT SPEED BRAKE SWITCH AT SPEED BRAKE HANDLE. REMOVED AND REPLACED SWITCH, CHECKS NORMAL.

Part: FRAME — CORRODED (CABIN WINDOW) · airframe 63,454 hrs · 33,117 cycles

DURING HEAVY MAINTENANCE INSPECTION CORROSION WAS FOUND OUT OF LIMITS AT MAIN CABIN WINDOW FRAME ON AFT SIDE AT STA 720A THROUGH 720B WINDOW R15. REMOVED CORROSION IAW B727 SRM 511006. FABRICATED DOUBLER FROM 2024 T3 .160 IAW B727 SRM 562003 FIG 3. TREATED AND PRIMED IAW B727 SRM 511002 AND MM 512002. INSTALLED IAW B727 SRM 513002 AND 562003 FIG 3.

Part: CHARGER — INOPERATIVE (CABIN) · airframe 63,164 hrs · 32,977 cycles

DURING A MAINTENANCE LINE CHECK, THE LEFT FORWARD OVERWING EMERGENCY TREAD LIGHT WAS FOUND INOPERATIVE. REMOVED AND REPLACED THE BATTERY PACK AND CHARGER FOR THE LEFT OVERWING TREAD EMERGENCY LIGHTING. OPERATIONAL CHECKS GOOD.

Part: ACCESSORY UNIT — INOPERATIVE (MLG) · airframe 62,861 hrs · 32,840 cycles

DURING CLIMBOUT FROM MSP, THE LANDING GEAR WOULD NOT RETRACT, THE CREW COMPLETED COM PROCEDURES. THE GEAR RETRACTED NORMALLY AND THE CREW RETURNED TO MSP. REMOVED AND REPLACED THE LANDING GEAR ACCESSORY UNIT, OPERATIONAL CHECKS GOOD.

Part: PLUG — LEAKING (SLAT ACTUATOR) · airframe 62,666 hrs · 32,754 cycles

DURING CRUISE THE FLIGHT CREW NOTICED A SLOW LOSS OF B SYSTEM FLUID, DUE TO A DECREASE IN PRESSURE. SECURED REMAINNG B PUMP. SYSTEM FLUID REMAINED, NO SYSTEM OVERHEAT. HYDRAULIC PLUG AT NR 4 SLAT ACTUATOR WAS FOUND TO HAVE A BLOWN OUT SEAL. REMOVED AND REPLACED SEAL, SYSTEM LEAK CHECKS GOOD. NOTE HYDRAULIC SYSTEM WAS NOT DEPLETED, LOW PRESSURE OR HEAT TEMPERATURE LIGHT DID NOT ILLUMINATE.

Part: POWER SUPPLY — FAILED (ROW 9-13) · airframe 62,534 hrs · 32,697 cycles

DURING A MAINTENANCE LINE CHECK THE EMERGENCY PATH LIGHTING FROM ROW 9 TO 13 WAS FOUND INOPERATIVE. REMOVED AND REPLACED BATTERY POWER SUPPLY OPERATIONAL CHECKS GOOD FROM ROW 9 TO 15.

Part: CIRCUIT BREAKER — POPPED (CABIN) · airframe 61,511 hrs · 32,270 cycles

ON APPROACH LANDING GEAR UNSAFE INDICATION, EXECUTED A MISSED APPROACH. FOUND AND RESET CIRCUIT BREAKER GEAR INDICATION CIRCUIT BREAKER AND MADE A NORMAL LANDING. OPERATED ALL SYSTEMS AFFECTED BY THE CIRCUIT BREAKER THAT WAS RESET AND ALL SYSTEMS CHECK NORMAL.

Part: VALVE — FAILED (RIGHT PACK) · airframe 61,314 hrs · 32,192 cycles

ON CLIMBOUT, THE RIGHT PACK WOULD NOT MOVE FROM FULL COLD POSITION. FURTHER INVESTIGATION REVEALED THAT IT HAD CEASED TO FUNCTION. AT FL 250 AIRCRAFT WOULD NOT MAINTAIN PRESSURIZATION. REPLACED RIGTH PACK VALVE PER M 215571. GROUND CHECKS NORMAL.

Part: ACTUATOR — MALFUNCTIONED (SPEED BRAKE)

CREW OBSERVED TAKEOFF WARNING HORN AT THE BEGINNING OF THE TAKEOFF ROLL. REJECTED TAKEOFF, FOUND ACTUATOR FOR S867 (SPEED BRAKE WARNING SWITCH) OUT OF ADJUSTMENT. READJUSTED ACTUATOR AND PERFORMED TAKEOFF WARNING. CHECKED GOOD PER MM 31260. NO FURTHER PROBLEMS NOTED. OK FOR CONTINUED SERVICE.

Part: LINE — RUPTURED (HYD SYSTEM)

ON APPROACH, A LOSS OF THE 'A' SYSTEM HYDRAULICS WAS NOTED. MANUALLY EXTENDED THE GEAR AND A TOW TO THE GATE WAS REQUIRED. REPLACED SPOLIER 1 AND 2 RETURN RUPTURED HYDRAULIC LINE WITH A TEMPORARY LINE AND THEN PUT ON DMI.

Part: WARNING HORN — SOUNDED (COCKPIT)

ON TAKEOFF ROLL, THE TAKEOFF WARNING HORN SOUNDED. ABORTED TAKEOFF. EXERCISED AND CLEANED THE UPPER AND LOWER TRIM WARNING SWITCHES SYSTEM. TAKEOFF WARNING SYSTEM OPERATIONALLY CHECKS GOOD PER WORK CARD 3996.

Part: CIRCUIT BREAKER — FAILED (BOOST PUMP)

AIR RETURN DUE TO ALL CIRCUIT BREAKERS FOR TANK NUMBER TWO FUEL BOOST PUMPS POPPED. FOUND NUMBER TWO FWD RT CIRCUIT BREAKER PHASE B AFT RT CIRCUIT BREAKER PHASE A AND AFT LEFT CIRCUIT BREAKERS PHASE A INTERMITTENTLY OPENING. REMOVED AND REPLACED CIRCUIT BREAKERS. DURING TROUBLESHOOTING INTERCHANGED THE NUMBER TWO RT FWD AND RT AFT BOOST PUMPS. OPERATIONALLY CHECKS GOOD.

Part: BATTERY PACK — DISCHARGED (CABIN)

DURING A LINE MAINTENANCE CHECK, THE CENTER AISLE EMERGENCY LIGHTS WERE FOUND INOPERATIVE. FOUND LIGHT ASSEMBLY INOPERATIVE AND BATTERY PACK INOPERATIVE. REMOVED AND REPLACED LIGHT ASSEMBLY AND BATTERY PACK, OPERATIONALLY CHECKS GOOD IAW 335001.

Part: BATTERY PACK — DISCHARGED (CABIN)

DURING A LINE MAINTENANCE CHECK, THE EMERGENCY LIGHTS OVER THE AISLE AT SEAT 5 AND THE OVERWING LIGHTS ABOVE THE LEFT OVERWING EXITS WERE FOUND INOPERATIVE. RELAMPED 5 SOCKETS AT AISLE SEAT 5 WITH 328 LAMPS. REMOVED AND REPLACED BATTERY PACK FOR THE LEFT OVERWING EXIT LIGHTS. OPERATIONALLY CHECKS GOOD IAW MM 345022.

Part: BATTERY PACK — DISCHARGED (BATTERY PACK)

DURING HEAVY MAINTENANCE CHECK, EMERGENCY LIGHT BATTERY PACK M9802 WILL NOT CHARGE. REMOVED AND REPLACED BATTERY PACK IAW B727 MM 335023. OPS CHECK NORMAL IAW B727 MM 335023.

Part: ANGLE — CORRODED (BS 700)

DURING HEAVY MAINTENANCE CHECK, CORROSION WAS FOUND OUT OF LIMITS AT APPROX BETWEEN FS 700 AND 804 LBL 10 JUST FWD OF AIR CONDITION COMPARTMENT ON PANEL INSTL ANGLE. REMOVED CORROSION IAW SRM 511006. ROUTED OUT DAMAGE AND FABRICATED 2 ANGLES AND 1 FILLER FROM BAC 14902865 IAW SRM 514003. TREATED AND PRIMED IAW MM 512002 AND SRM 511002. INSTALLED REPAIR IAW SRM 514003 AND 513002.

Part: SHEAR TIE — CORRODED (BS 720E)

DURING HEAVY MAINTENANCE CHECK, CORROSION WAS FOUND OUT OF LIMITS AT FORWARD PIT RIGHT STRINGER, BETWEEN 26 AND 27 SHEAR TIE AT BS 720E. REMOVED CORROSION IAW SRM 511006. REMOVED CORRODED SHEAR TIE IAW SRM 513002. FABRICATED SHEAR TIE FROM ALC 2024 T3 PER SAMPLE. TREATED AND PRIMED IAW 511002 AND MM 512002.

Part: STRINGER — CORRODED (BS 620)

DURING HEAVY MAINTENANCE CHECK, FORWARD CARGO PIT FS 620, STR 27R HAD CORROSION OUT OF LIMITS ON I/B FLANGE AT PREVIOUS REPAIR. REMOVED CORROSION IAW B727 SRM 511006. FABRICATED STRINGER REPAIR FROM BAC 1498147 IAW B727 SRM 531003. TREATED AND PRIMED IAW B727 SRM 511022 MM 512002. INSTALLED REPAIR IAW B727 SRM 513002.

Part: BATTERY PACK — DISCHARGED (CABIN)

DURING HEAVY MAINTENANCE CHECK, R2 DOOR EXTERIOR EMERGENCY ESCAPE LIGHT INOP. REMOVED AND REPLACED BATTERY PACK.

Part: LIGHT — INOPERATIVE (CABIN)

DURING HEAVY MAINTENANCE CHECK, RIGHT FORWARD OVERWING EXIT, LOWER LEFT EMERGENCY EXIT LIGHT INOP. RELAMPED IAW B727 MM 3350121, OPS CHECK NORMAL IAW B727 MM 3350121.

Part: BATTERY PACK — DISCHARGED (CABIN)

DURING HEAVY MAINTENANCE CHECK, L2 DOOR EXTERIOR EMERGENCY ESCAPE LIGHT INOP. REMOVED AND REPLACED BATTERY PACK.

Part: BATTERY PACK — DISCHARGED (CABIN)

DURING HEAVY MAINTENANCE CHECK, THE EMERGENCY LIGHT ON AFT CARGO DOOR WAS FOUND INOP. REPAIRED AND REPLACED BATTERY PACK.

Part: LIGHT — INOPERATIVE (CABIN)

DURING HEAVY MAINTENANCE CHECK, EMERGENCY EXIT LIGHT AT LOWER LEFT R1 DOOR INOP. RELAMPED IAW B727 MM 3350121, OPS CHECK NORMAL IAW B727 MM3350121.

Part: LIGHT — INOPERATIVE (CABIN)

DURING HEAVY MAINTENANCE CHECK, EMERGENCY EXIT LIGHT AT LOWER RIGHT L1 DOOR INOP. RELAMPED IAW B727 MM 3350121, OPS CHECK NORMAL IAW B727 MM 3350121.

Part: BATTERY PACK — DISCHARGED (CABIN)

DURING HEAVY MAINTENANCE CHECK, L2 DOOR EMERGENCY EXIT LIGHT OVER DOOR INOP. REMOVED AND REPLACED BATTERY PACK.

Part: ANGLE — CORRODED (BS 166)

DURING HEAVY MAINTENANCE CHECK, STA 166 GILLINER AFT BULKHEAD SUPPORT L ANGLE WAS CORRODED OUT OF LIMITS AT LBL 36 AND ATTACH POINT TOP LOWER L ANGLE. REMOVED L ANGLE IAW B727 SRM 513002. FABRICATED NEW ANGLE PER SAMPLE FROM AND 101401024 AND 7075 T6 .026. TREATED AND PRIMED IAW SRM 511002, MM 512002. INSTALLED IAW SRM 513002.

Part: LIGHT — INOP (CABIN)

DURING HEAVY MAINTENANCE CHECK, LEFT FORWARD OVERWING EXIT, LOWER RIGHT EMERGENCY EXIT LIGHT INOP. RELAMPED IAW B727 MM 3350121, OPS CK NORMAL IAW B727 MM 3350121.

Part: SHEAR TIE — CORRODED (BS 302)

DURING HEAVY MAINTENANCE CHECK, CORROSION WAS FOUND OUT OF LIMITS AT SHEAR TIE IN THE NOSE LANDING GEAR WHEEL WELL BS 302 LBL 16 LWR FRAME AT SKIN ATTACHMENT INSIDE CUTOUT. TRIMMED OUT DAMAGED AREA AND FABRICATED DOUBLER FROM 0.050 7075 T6 IAW SRM 514002. TREATED AND PRIMED AREA AND DOUBLER IAW SRM 511002 AND MM 512002. INSTALLED REPAIR IAW SRM 514002 AND 513002.