N830AY

Part: LIGHT — INOPERATIVE (CABIN) · airframe 17,064 hrs · 14,965 cycles

MAIN CABIN DOOR EMERGENCY LIGHT (WHITE) BY FLOOR HAS A COUPLE OF BULBS INOPERABLE. INSTALLED NEW BULBS.

Part: ENGINE — MALFUNCTIONED (LEFT) · airframe 16,998 hrs · 14,906 cycles

ON FLIGHT 4021 DURING CLIMBOUT OF CLT AT 4000FT LOUD POP WAS HEARD, NR 1 ENGINE N1 AND N2 ROWED BACK WITH ITT SPIKE TO AROUND 960. THE CREW THEN PROCEEDED TO SHUTDOWN THE ENGINE WITHIN 1.5 MINUTES. AN EMERGENCY WAS DECLARED AND THE AIRCRAFT RETURNED TO CLT. LEFT ENGINE S/N 873946 WAS INSTALLED ON 6/28/2011. NO SIGNIFICANT RECENT HISTORY ON ENGINE. REPLACED LEFT HAND ENGINE. OPS CHECKS GOOD.

Part: B-NUT — LOOSE (HYD LINE) · airframe 16,577 hrs · 14,480 cycles

AIRCRAFT DIVERTED DUE TO NR 1 HYD QUANTITY LOSS. CREW REPORTED INTERMITTENT 1A AND 1B CAUTION MESSAGES WITH ERRATIC PRESSURE INDICATION AND THE NR 1 HYD QTY INDICATION. PRELIMINARY INVESTIGATION BY MAINTENANCE, FOUND THE NR 1 RESERVOIR QTY AT ZERO AND THE RETURN LINE TO NR 1 RESERVOIR LOOSE. TIGHTENED B-NUT HYDRAULIC SYSTEM 1 LEAK CHECK GOOD IAW AMM 29-11-01.

Part: BATTERY — UNKNOWN (EMERGENCY LIGHTS) · airframe 16,298 hrs · 14,203 cycles

NR 2 EMERGENCY LIGHT BATTERY RS. REMOVED AND REPLACED NR 2 EMERGENCY BATTERY IAW AMM 33-51-04.

Part: WIRE — DAMAGED (RT WING) · airframe 15,666 hrs · 13,597 cycles

DIVERTED FOR RT WING ANTI-ICE CAUTION WOULD NOT EXTINGUISH WITH WING ANTI-ICE IN THE NORM OR STBY POSITION. T/S RT WING CAUTION IAW FIM 30-10-00. FOUND BAD WIRING ON RT MODULATION SOV CONNECTOR 2P3HA. RE-PIN WIRE IAW ESPM 20-17-10. OPS CHECK GOOD. A/C OK FOR SERVICE.

Part: WIRE — DEFECTIVE (ANTI-ICE SYS) · airframe 15,666 hrs · 13,597 cycles

FLIGHT DIVERTED FOR RT WING ANTI-ICE CAUTION WOULD NOT EXTINGUISH WITH WING ANTI-ICE IN THE NORM OR STBY POSITION. T/S RT WING CAUTION IAW FIM 30-10-00. FOUND BAD WIRING ON RT MODULATION SOV CONNECTOR 2P3HA. RE-PIN WIRE IAW ESPM 20-17-10. OPS CHECK GOOD. A/C OK FOR SERVICE.

Part: SEAL — DAMAGED (PAX DOOR) · airframe 14,046 hrs · 12,076 cycles

AIR RETURN FOR NOT PRESSURIZING, REPAIRED PAX DOOR SEAL IAW AMM 52-10-11. PRESSURE CHECKS GOOD, OK FOR SERVICE.

Part: PRIORITY VALVE — MALFUNCTIONED (NLG) · airframe 11,864 hrs · 9,985 cycles

GEAR DISAGREE ON APPROACH, INITIALLY NOSE DID NOT COME DOWN GEAR THEN DOWN AND 3 GREEN, UNEVENTFUL LANDING. FLT 4024 STA--MEM EMP--53431. REMOVED AND REPLACED NLG PRIORITY VALVE IAW AMM OPS CHECK GOOD DM CLEARED.

Part: BPSU — FAILED (TE FLAP) · airframe 11,351 hrs · 9,498 cycles

FLAPS FAIL CAUTION MESSAGE, FLAPS FAIL AT 20 DEGS. PERFORMED TROUBLESHOOTING PER BOMBARDIER FIM REV 39 IAW AD 2009-06-12 PARAGRAPH (H)(6)(I). PER AMOC DATED MARCH 27 2009 AND PA AD27-052F. REMOVED AND REPLACED LT BPSU IAW CRJ AMM 27-51-10. RIGGED LT BPSU IAW CRJ AMM 27-51-10-830, FLAPS OP CHECK GOOD IAW CRJ AMM 27-54-00.

Part: AMPLIFIER — DEFECTIVE (E&E BAY) · airframe 11,338 hrs · 9,485 cycles

ON CLIMBOUT OF KDTW THE FLIGHT CREW NOTICED THE LT N1 INDICATION ACCELERATE TO 96.7 PERCENT. THE THRUST LEVER WAS REDUCED AND THE LT N1 DECREASED, BUT FLUCTUATED 20-25 PERCENT. ALL OTHER ENGINE PARAMETERS WERE NORMAL. THE FLIGHT CREW CONTACTED ATC, REQUESTED VECTORS TO RETURN TO KDTW. SINCE THE LT ENGINE WAS MAKING POWER, THE FLIGHT CREW ELECTED NOT TO SHUT IT DOWN. AN OTHERWISE NORMAL APPROACH AND LANDING WAS MADE AT KDTW. MAINTENANCE INITIALLY REPLACED THE LT N1 SPEED SENSOR, BUT THE CONDITION REPEATED ON GROUND RUN. THE LT ENGINE N1 CONTROL AMPLIFIER WAS REPLACED AND THE GROUND RUN WAS SUCCESSFUL. THE AIRCRAFT WAS RELEASED FOR SERVICE FOLLOWING AN OVERWEIGHT LANDING INSPECTION.