N979HA

Part: ACTUATOR — LEAKING (SPOILERS) · airframe 33,120 hrs · 42,682 cycles

ON TOUCHDOWN, THE NR 1 HYD ISOLATION VALVE CAUTION LIGHT ILLUMINATED, LOST NR 1 HYD QTY AND ASSOCIATED BRAKES. TAXIIED IN USING REVERSE AND THE PARKING BRAKE. REPLACED RT INBD SPOILER ACTUATOR.

Part: DISPLAY — FAILED (AUTOPILOT) · airframe 32,983 hrs · 42,490 cycles

THE AUTOPILOT DISPLAY WENT BLACK (ID-802) AND COULD SMELL BURNING WIRE. R & R NR 1 ID-802 ADVISORY DISPLAY.

Part: LINE — LEAKING (HYD SYSTEM) · airframe 32,177 hrs · 41,435 cycles

STRONG CHEMICAL ODOR IN COCKPIT AFTER TAKEOFF. FOUND PINHOLE LEAK IN NOSE GEAR HYD LINE. REPAIRED THE LINE AND CYCLED 8 TIMES WITH NO DEFECTS OR LEAKS NOTED.

Part: CONDENSER — ODOR (CABIN AIR) · airframe 32,176 hrs · 41,433 cycles

STRONG CHEMICAL ODOR ON FLIGHT DECK AND IN CABIN AFTER TAKEOFF WITH BLEED AIR ON FOR AN APPROX 4 MINUTE DURATION. MX PERSONNEL REMOVED, CLEANED, AND REINSTALLED CONDENSOR/MIXER. MX PERFORMED AN ENGINE RUN AFTER CLEANING AND NOTED NO FURTHER ODOR.

Part: CONNECTOR — DIRTY (SMOKE DETECTOR) · airframe 31,708 hrs · 40,749 cycles

SMOKE LIGHT ILLUMINATED INTERMITTENTLY ON CLIMBOUT. CLEANED AND RESEATED CONNECTORS IN THE BAG BAY - CONNECTOR DESIGNATOR 2612-P2 & 2612-P4

Part: ANNUNCIATOR — INTERMITTENT (SMOKE DETECTION) · airframe 31,628 hrs · 40,609 cycles

FLIGHT 51395 SMOKE MASTER WARNING ANNUNCIATOR ILLUMINATED INTERMITTENTLY IN FLIGHT FOR APPROX 5 SECOND INTERVALS EACH TIME, THEN EXTINGUISHED. CREW RETURNED TO BASE AS A PRECAUTIONARY MEASURE. UPON INSP, MX FOUND A PIN PUSHED OUT OF THE BAGGAGE SMOKE DETECTOR CONNECTOR. THE SMOKE DETECTOR WIRING WAS CHECKED FOR DEFECTS AND PIN AND CONNECTOR WERE RESEATED. OPS CHECK WAS GOOD AND NO FALSE WARNING INDICATION, REOCCURANCE WAS REPORTED.

Part: BRAKE CABLE — FRAYED (RT MLG) · airframe 31,348 hrs · 40,176 cycles

NO RT BRAKES DURING LANDING ROLLOUT. REPLACED DAMAGED CONTROL CABLE (SEPARATED STRANDS).

Part: ACTUATOR — CRACKED (LT SPOILER) · airframe 29,648 hrs · 36,428 cycles

(PIREP) HYDRAULIC FLUID LEAKING FROM LEFT WING. (MX) REMOVED AND REPLACED LT OUTBOARD SPOILER ACTUATOR IAW DHC-8 MM 27-14-05 PG 201-203. UPON INSPECTION IT IS NOTED THAT THE ACTUATOR HOUSING CRACKED AND FAILED AT THE PISTON END CAP. THE END CAP SEPARATED FROM THE ACTUATOR UNIT.

Part: TUBE — FAILED (NR 2 ENGINE) · airframe 29,371 hrs · 35,744 cycles

(PIREP) ON CLIMBOUT AT 3000FT, THE NR 2 ENGINE OIL PRESSURE LIGHT ILLUMINATED AND ZERO OIL PRESSURE ON THE GAUGE. SHUT THE ENGINE DOWN PER CHECKLIST AND LANDED WITHOUT INCIDENT. (MX) REMOVED AND REPLACED NR 2 ENGINE IAW RORM AIA M-105. OPS AND LEAK CHECK IAW DHC-8 MM 71-00-00 PG 529-532.

Part: RELAY — BURNED (APU) · airframe 27,088 hrs · 53,790 cycles

(PIREP) SMOKE IN COCKPIT AND IN CABIN WHILE BOARDING DOOR OPEN ON GROUND IN JHM. (MX) DETERMINED APU CONTROL RELAY LEFT SIDE NOSE COMPARTMENT MALFUNCTIONED. MEL 49-1 CAT D. (MX) REMOVED & REPLACED RELAY 2449-K62 IAW DHC WD 24-33-03 SHEET 2 PG 1. REMOVED AND REPLACED APU DC STARTER/GENERATOR IAW DHC-8 MM 49-10-01 PG 204-205. CLEARED MEL 49-1.

Part: WARNING SYSTEM — MALFUNCTIONED (COCKPIT) · airframe 28,506 hrs · 33,688 cycles

(PIREP) WHILE ADVANCING POWER LEVERS FOR TAKEOFF, CONFIGURATION HORN SOUNDED. AIRCRAFT EXITED THE RUNWAY AND RECYCLED ALL SWITCHES FOR TAKEOFF. RECYCLING THE SWITCHES REMEDIED THE PROBLEM, TAXIED BACK FOR TAKEOFF AND COMPLETED THE FLIGHT WITHOUT INCIDENT.

Part: HMU — MALFUNCTIONED (NR 1 ENGINE) · airframe 28,143 hrs · 32,843 cycles

NR 1 ENGINE FAILED TO PRODUCE SUFFICIENT POWER ON THE TAKEOFF ROLL. REMOVE AND REPLACED NR 1 ENGINE HMU IAW PRATT & WHITNEY MM CHAPTER 72, 72-01-40 PAR 5. OPERATIONAL AND LEAK CHECK GOOD.

Part: LINE — BROKEN (HYD SYSTEM) · airframe 25,104 hrs · 27,617 cycles

WHILE ON DEICING PAD CREW REPORTED THAT A HYDRAULIC LINE WAS LEAKING IN THE CABIN AT SEATS 5DF AND 6DF. EMERGENCY WAS DECLARED. FLIGHT ATTENDANT AND ONE PASSENGER WERE TAKEN TO HOSPITAL DUE TO AFFECT OF HYDRAULIC FLUID IN THE CABIN. MAINTENANCE REPLACED A HYDRAULIC LINE FOR THE NOSE LANDING GEAR SYSTEM. ALSO REPLACED WERE AFFECTED INNER CABIN WINDOWS, CARPETING, AND PASSENGER SERVICE UNITS. AIRCRAFT RETURNED TO SERVICE.

Part: WIRE — DAMAGED (EMERGENCY LIGHT) · airframe 24,260 hrs · 26,688 cycles

DURING ROUTINE MAINTENANCE VISIT FLOOR STRIP EMERGENCY LIGHT SYSTEMS LAST SEGMENT UNDER ROW 9 WOULD NOT ILLUMINATE. WIRE WAS REPAIRED REFERENCING ADVISORY CIRCULAR 43-13. AIRCRAFT WAS RETURNED TO SERVICE.

Part: LINE — SEVERED (HYD SYSTEM) · airframe 24,125 hrs · 26,549 cycles

LGA-FLIGHT 3960 CREW REPORTED LOSS OF NR 1 HYDRAULIC FLUID IN FLIGHT. ISOLATION LIGHT ILLUMINATED. HYDRAULIC CONTENTS AT .5 QUARTS. NR 1 HYDRAULIC PUMP CAUTION LIGHT ALSO ILLUMINATED, BUT PRESSURE REMAINED NORMAL. EMERGENCY WAS DECLARED. FLIGHT LANDED WITH OUT ANY LOSS OF BRAKES NOR ANY PROBLEMS WITH LANDING GEAR. MAINTENANCE FOUND A HYDRAULIC LINE TO NR 1 INLET PRESSURE MANIFOLD SEVERED. RIGID HYDRAULIC LINE WAS REPLACED WITH A FLEXIBLE LINE IN ACCORDANCE WITH DEHAVILLAND DASH 8 MAINTENANCE MANUAL 20-50-52. HYDRAULIC SYSTEM BLED. NO LEAKS WERE NOTED, AIRCRAFT RETURNED TO SERVICE.

Part: WARNING LIGHT — ILLUMINATED (HYD SYSTEM) · airframe 24,077 hrs · 26,497 cycles

LGA-YUL. FLIGHT 3978 CREW REPORTED THAT THE NR 1 HYDRAULIC ISOLATION VALVE AND INBOARD ROLL SPOILER LIGHTS HAD ILLUMINATED IN FLIGHT. AFTER FLAP UP LANDING IN YUL NORMAL BRAKING SYSTEM HAD FAILED. MAINTENANCE HAD INSPECTED THE AIRCRAFT FOR HYDRAULIC LEAKS AND NONE WERE FOUND. THE NR 1 HYDRAULIC SYSTEM WAS SERVICED. CREW RAN THE AIRCRAFT AND NO DEFECTS WERE NOTED. AIRCRAFT RETURNED TO SERVICE.

Part: WARNING LIGHT — FALSE INDICATION (NR 1 HYD ISO VAL) · airframe 23,925 hrs · 26,331 cycles

PIT-FLIGHT 3890 CREW REPORTED NR 1 HYDRAULIC ISOLATION VALVE CAUTION LIGHT ILLUMINATED IN FLIGHT AND PARTIAL LOSS OF HYDRAULIC FLUID. HYDRAULIC FLUID OBSERVED ON NR 2 ENGINE. MAINTENANCE SERVICED NR 1 AND NR 2 HYDRAULIC RESERVOIRS AND INSPECTED AREA. FLUID WAS FOUND TO BE GLYCOL. CREW GROUND RAN AIRCRAFT. NO LEAKS WERE NOTED. FLAP WELLS, WHEEL WELLS AND CENTER WING AREA WERE INSPECTED. NO LEAKS WERE NOTED. AIRCRAFT RETURNED TO SERVICE.

Part: LINE — BROKEN (HYD SYSTEM) · airframe 23,705 hrs · 26,103 cycles

ALB-DCA FLIGHT 3922 CREW REPORTED HYDRAULIC CONTENTS ON NR 1 SYSTEM BELOW 1.5 QUARTS AND DROPPING. FLIGHT DIVERTED TO MDT FOR REPAIRS. MAINTENANCE FOUND A BROKEN LINE AT THE LANDING GEAR SELECTOR VALVE. LINE WAS REPLACED. FUNCTION AND LEAK CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.

Part: BATTERY PACK — WEAK (POSITION #2) · airframe 22,729 hrs · 25,074 cycles

DURING ROUTINE MAINTENANCE VISIT RIGHT FORWARD EXTERIOR EMERGENCY LIGHT AND SECOND CEILING EMERGENCY LIGHT FOUND INOPERATIVE. POSITION #2 EMERGENCY LIGHT BATTERY PACK REPLACED. OPERATIONAL CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.

Part: OIL COOLER — DIRTY (NR 2 NACELLE) · airframe 18,807 hrs · 20,786 cycles

NR 2 ENGINE OIL GAUGE FLUCTUATING BETWEEN 55 PSI TO 45 PSI, NEVER BELOW 40. COMPLIED WITH ABNORMAL OIL PRESSURE CHECKLIST. REMOVED AND REPLACED OIL COOLER.

Part: BATTERY — DISCHARGED (CABIN)

BEFORE THE FIRST FLIGHT OF THE MORNING SEVERAL EMERGENCY LIGHTS WERE FOUND TO BE INOP. REPLACED ALL EMERGENCY LIGHT BATTERY PACKS.

Part: GEAR PIN — NOT STOWED (NLG)

FLT NR 3243 - TPA-FLL - AFTER TAKEOFF, THE NOSE GEAR WOULD NOT RETRACT. THE AIRCRAFT RETURNED TO TPA AND LANDED WITHOUT INCIDENT. FOUND NOSE GEAR PIN NOT STOWED, RESTOWED PIN. AT RON, INSPECTED NOSE GEAR GROUND LOCK, LUBRICATED AND CHECKED FOR PROPER OPERATION. (M)

Part: O-RING — CRACKED (NR 1 ENGINE)

FLT 3340 - DCA-HPN - DURING DESCENT INTO HPN WITH LOW POWER SETTING, THE CABIN BEGAN TO FILL WITH SMOKE. CYCLED EACH BLEED OFF AND RAISED CABIN ALTITUDE TO REMOVE SMOKE. THE AIRCRAFT LANDED IN HPN WITHOUT INCIDENT. REMOVED AND REPLACED THE P2.5 AIR SWITCHING VALVE, NO FIX. REMOVED AND REPLACED THE NR 1 ENGINE. S/D - AFTER TEARDOWN WAS COMPLETE ON ENGINE S/N 121315, IT WAS FOUND THAT THE O-RING BETWEEN THE NR 6 AND NR 7 BEARING HOUSING WAS CRACKED AND DETERIORATED. (M)

Part: ENGINE — MALFUNCTIONED (NR 1)

FLT NR 3340 - DCA-HPN - DURING DESCENT INTO HPN WITH LOW POWER SETTING, THE CABIN BEGAN TO FILL WITH SMOKE. CYCLED EACH BLEED OFF AND RAISED CABIN ALTITUDE TO REMOVE SMOKE. THE AIRCRAFT LANDED IN HPN WITHOUT INCIDENT. REMOVED AND REPLACED THE P2.5 AIR SWITCHING VALVE, NO FIX. REMOVED AND REPLACED THE NR 1 ENGINE. (M)

Part: CONNECTOR — LOOSE (CABIN)

RDU/BWI - FLT 3345 - DURING PREFLIGHT WALKAROUND, FOUND THE EMERGENCY EXIT LIGHT OVER THE PASSENGER DOOR INOPERATIVE. SECURED A LOOSE PIN ON THE CONNECTOR. (X)

Part: RELAY — FAILED (NR 1 PROP)

FLT NR 3236 - LYH-DCA - WHILE PERFORMING AUTOFEATHER TEST ON PREFLIGHT CHECK, THE NR 1 TORQUE INDICATOR DOES NOT INCREASE WHEN 'TEST' SWITCH IS SELECTED. CLEANED THE 7700-P3 CONNECTOR AND REMOVED AND REPLACED THE 6121-K3 RELAY AS A PRECAUTION.

Part: SWITCH — OUT OF ADJUST (NR 1 PWR LEVER)

EWN/CLT - FLT 3239 - DURING TAKEOFF ROLL, THE ROLL SPOILER GROUND MODE CAUTION LIGHTS ILLUMINATED. CREW ABORTED TAKEOFF WITHOUT INCIDENT. MEL 27-8. AT RON, ADJUSTED NR 1 POWER LEVER ANGLE WITH 2761-S1 AND CLEANED, LUBED AND ADJUSTED NR 2 POWER LEVER ANGLE WITH 2761-S2.