N590MA

Part: POWER SUPPLY — FAULTY (E/E BAY)

DURING FLIGHT NR 3666, EMERGENCY BATTERY LIGHT ILLUMINATED OUTBOUND. AIR RETURN TO DTW. MAINTENANCE REPLACED EMERGENCY POWER SUPPLY P/N 501-1228-04, S/N ON 4684, S/N OFF 1606 IAW MAL TASK CARD 243502. OPS CHECK GOOD.

Part: WIRE — BROKEN (MLG)

WHILE COMPLETING EMERGENCY EXTENSION CHECKS FOR THE LANDING GEAR AND SEPARATION BOLT DUAL BRIDGE WIRE CONTINUITY CHECKS FOUND THREE WIRES BROKE GOING TO THE SEPARATION BOLT. SUSPECT THAT IT IS A COMBINATION OF WIRE ROUTING AND THE SHIELDING THAT IS SOLDERED ON THE WIRE RUN. THE SOLDER POINT AND ROUTING BEND AREA APPROXIMATELY ONE INCH FROM THE CANNON PLUG. MAINTENANCE REPLACED THE RT SEPARATION BOLT CANNON PLUG P/N 85106RC8-4. CHECKS GOOD AS REQUIRED.

Part: CONNECTOR — DIRTY (LANDING GEAR)

AFTER TO ON FLIGHT 3353, LANDING GEAR HANDLE WAS SELECTED UP, LANDING GEAR FAILED TO RETRACT. GEAR UNSAFE LIGHT REMAINED ILLUMINATED, AND HYDRAULIC PUMP CONTINUED TO RUN. AIR RETURN TO BUF. MAINTENANCE CLEANED CANNON PLUGS AND UPLOCK SWITCHES, PERFORMED OPS CHECK. ALL SYSTEMS CHECK NORMAL.

Part: STARTER — FAILED (LT ENGINE)

LT ENGINE SMOKING DURING ENGINE START (BAD STARTER). FIRE EXTINGUISHER USED. UPON STARTING LT ENGINE, START RELAY FAILEDTO CUT-OUT. ABORTED ENGINE START AND QRT. NG FAILED TO DROP BELOW 15 PERCENT WITH SMOKE COMING FROM LT IB SIDE OF ENGINE. NO FIRE INDICATIONS ON CWP. PULLED LT T-HANDLE AND BLEW BOTTLE. NG STILL FAILED TO DROP BELOW 15 PERCENT UNTIL BATTERIES WERE OFF. MAINTENANCE REPLACED LT STARTER TC 243103, PN 23080-031, SN/OFF 98273 ANDSN/ON 98146,AND REPLACED LT PDU IAW AMM 24 PN A2042C SN/OFF CL-88653 SN/ON CL-53397. MAINTENANCE ALSO REPLACED ENGINE FIRE EXT BOTTLE PN 404028 SN/OFF71753ER, SN/ON71773EKIAW AMM 26 AND TC 262106. ALL CHECKS GOOD

Part: DETECTOR — MALFUNCTIONED (LT TAIL PIPE)

LEFT TAILPIPE HOT LIGHT ILLUMINATED IN CLIMB OUT. MAINTENANCE REMOVED COWLINGS, CLEANED TAILPIPE CANNON PLUG, RECOVERED AND RAN AC AND ALL OPS CHECK OK.

Part: WARNING LIGHT — ILLUMINATED (COCKPIT)

RIGHT A/C GEN LIGHT ILLUMINATED IN FLIGHT. PERFORMED QRH PROCEDURES, NO CHANGE, LIGHT REMAINED ILLUMINATED. AIR TURNBACKTO ERI. MX CYCLED AIRCRAFT POWER, RAN A/C WITH FLIGHT CREW, CND. OPERATIONS CHECK OK.

Part: SHAFT — SHEARED (AC GENERATOR)

LT A/C GENERATOR LIGHT ILLUMINATED ENROUTE TO MQT. QRH RAN, LIGHT REMAINED ON, RETURNED TO DTW. MAINTENANCE REPLACED LT A/C GENERATOR. IAW SAAB AMM ALL CHECKS GOOD.

Part: INDICATOR — MALFUNCTIONED (COCKPIT)

IN CRUISE, RIGHT ENGINE OIL PSI AND TEMP AND RIGHT PROP OIL PSI AND TEMP BOTH READ ZERO, NO CB'S POPPED, UNTIL LANDING. MAINTENANCE RESET RT ENGINE OIL AND PROP OIL CB'S. GROUND RAN AIRCRAFT FOR 30 MINUTES, ALL INDICATIONS GOOD. ALL CHECKS GOOD.

Part: CONDITION LEVER — OUT OF ADJUST (LT ENGINE)

CREW NOTED PROP RPM ON LT PROPELLER WELL BELOW TAKEOFF SETTING SHORTLY AFTER V1 ROTATION. RETURNED TO DTW AND ACCOMPLISHED QRH FOR PROP MALFUNCTION. MAINTENANCE INSPECTED LT CONDITION LEVER RIGGING, FOUND OUT OF RIG, RE-RIGED THE LT CONDITION LEVER IAW 76-10-00-5 SAAB MM. PERFORMED APR AND PROP OVERSPEED AND PCU HOLD CHECK, MAX RUN CTOT RUNS. OPS CHECK GOOD.

Part: SMOKE DETECTOR — FAILED (CARGO COMPT)

CARGO SMOKE WARNING ILLUMINATED ON THE GROUND INTERMITTENTLY. MAINTENANCE REPLACED CARGO SMOKE DETECTOR IAW SAAB AMM 26-13-15-4. OPS CHECK GOOD.

Part: SMOKE DETECTOR — DIRTY (AVIONICS COMPT)

AVIONIC SMOKE MASTER WARNING AND WARNING LIGHT (CWP) ILLUMINATED IN FLIGHT, NO INDICATION OF FIRE, SMOKE OR HEAT. AIRCRAFT RETURNED TO DTW. AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE CLEANED AVIONIC RACK SMOKE DETECTOR PER SF340A MM. ALL CHECKS GOOD.

Part: CONTROLLER — FAILED (RT ENGINE)

DURING CLIMBOUT OF DTW, RT ENGINE INTAKE HEAT CAUTION LIGHT ILLUMINATED. RAN THROUGH THE QRH ICE PROTECTION, LIGHT CONTINUED TO ILLUMINATE THEN IT STARTED TO CYCLE ON/OFF. RETURNED TO DTW. MAINTENANCE REPLACED RT LOAD MONITOR AND RT THERMOL CONTROLLER, OPS CHECK GOOD.

Part: CIRCUIT BREAKERS — DAMP (LEFT)

ON STARTING OF NR 2 ENGINE, NOTICED SMOKE COMING LT CIRCUIT BREAKERS. MAINTENANCE FOUND EVIDENCE OF MOISTURE ON CIRCUIT BREAKER PANEL. CLEANED PANEL. NO CHAFING OF WIRES OR BURNS. NO SMOKE NOTED AT THIS TIME. OPS CHECKS GOOD.

Part: THERMAL CONTROL — FAILED (RT ENGINE)

DURING FLIGHT, RIGHT ENGINE INTAKE HEAT LIGHT ILLUMINATED. AIRCRAFT RETURNED TO MSP. MAINTENANCE REPLACED THERMAL CONTROL, RIGHT INTAKE OPS CHECK GOOD.

Part: BATTERY PACK — DISCHARGED (CABIN)

DURING INSPECTION EMERGENCY EXIT LIGHT TEST FAILED. MAINTENANCE REPLACED ALL 5 BATTERY PACKS FOR EMERGENCY LIGHTS, OPS CHECK GOOD.

Part: SWITCH — FAILED (RIGHT)

AFTER TAKEOFF, NR 2 EHSI AND EADI BOTH WENT BLANK, UNABLE TO RESET. MAINTENANCE REPLACED RIGHT AVIONICS SWITCH. NR 2 EHSI AND EADI OPS CHECK GOOD.

Part: BULB — FAILED (CABIN)

DURING INSPECTION, ONE OVERHEAD AND ONE FLOOR TRACK LIGHT INOP. MAINTENANCE RELAMPED EMERGENCY LIGHTING, ALL CHECKS GOOD.

Part: BULB — FAILED (CABIN)

DURING INSPECTION, OVERHEAD EMERGENCY LIGHT 3C AND D INOP. MAINTENANCE RELAMPED. ALL CHECKS GOOD. (M)

Part: COVER — LOOSE (EMER EXIT)

FLT 3107 - DURIN GTAKEOFF AND LANDING THE EMERGENCY EXIT HANDLE COVER AT 1D WILL NOT STAY IN PLACE. MAINTENANCE RESECURED EMERGENCY EXIT HANDLE COVER AT SEAT 1D. SECURITY CHECKS GOOD. (M)

Part: BULB — FAILED (CABIN)

DURING INSPECTION, ROW 11 A AND B EMERGENCY LIGHT INOP. MAINTENANCE RELAMPED. OPS CHECK GOOD. (M)

Part: LIGHT — INOPERATIVE (CABIN)

DURING INSPECTION, FLOOR TRACK LIGHT FOUND INOPERATIVE. MAINTENANCE RELAMPED. ALL CHECKS GOOD. (X)

Part: BATTERY — DISCHARGED (CABIN)

DURING INSPECTION, ALL EMERGENCY LIGHT BATTERIES DEAD. MAINTENANCE REPLACED ALL EMERGENCY BATTERIES. ALL CHECKS GOOD. (M)

Part: BULB — FAILED (CABIN)

DURING INSPECTION, EMERGENCY LIGHT ON FLIGHT ATTENDANT PANEL FOUND INOPERABLE. MAINTENANCE RELAMPED. OPS CHECK GOOD. (X)

Part: DECU — FAILED (LEFT)

FLT 2919 - DURING CLIMB, LEFT PROP RPM GAUGE INOP. MAINTENANCE REPLACED THE LEFT DECU. OPS CHECK GOOD. (M)

Part: SKIN — DELAMINATION (TE FLAP)

LAW - DURING EM-1 CHECK, FOUND THE RIGHT FLAP LEADING EDGE HAD A VOID/DELAMINATION APPROXIMATELY 4 INCHES BY 30 INCHES LONG. THE DAMAGE STARTED 39 INCHES FROM INBOARD END OF FLAP AND RUNNING OUTBOARD ALONG THE LEADING EDGE. FLAP WAS REMOVED FROM SERVICE FOR REPAIRS AND ANOTHER SERVICEABLE FLAP ASSEMBLY WAS INSTALLED IAW SAAB AMM. (M)