Pinnacle Air Charter LLC

Part: DUCT — BYPASSING (ZONE 400) · airframe 4,351 hrs · 3,218 cycles

RT ENGINE PYLON BLEED OVERHEAT, TROUBLE SHOT TO A LEAKING FLEX COUPLING ON HP BLEED DUCT.

Part: ADC — MALFUNCTIONED (NR 2) · airframe 1,258 hrs · 1,097 cycles

INVESTIGATED REPORT OF RT (COPILOT'S) SIDE PITCH TRIM FAIL INDICATION. ALSO SHOWING RED "X" INDICATIONS FOR AIRSPEED, ALTITUDE, AND VERTICAL SPEED. ALTITUDE PRESELECT TURNS RED, THEN BLUE. REPLACED NR 2 AIR DATA COMPUTER WITH AN O/H UNIT, DISPLAY INDICATIONS NORMAL. RECOMMEND MFG SERVICE FACILITY INVESTIGATE AT TEAR-DOWN TO DETERMINE IF INTERNAL COMPONENT FAILURE OR WATER CONTAMINATION. SB 34-3972, MODIFICATION OF NR 2 AIR DATA COMPUTER PLUMBING, WAS PREVIOUSLY COMPLIED WITH.

Part: FMC — MALFUNCTIONED · airframe 1,258 hrs · 1,097 cycles

INVESTIGATED REPORT OF FLIGHT MANAGEMENT SYS LOSING LAST SAVED POSITION, THEN GOING TO NORTH ZERO DEGREES AND EAST ZERO DEGREES. REPLACED NR 1 FMC-3000 FLIGHT MANAGEMENT COMPUTER CARD WITH AN O/H REPLACEMENT CARD AND RELOADED DATABASE. FMS OPS NORMAL. RECOMMEND MFG SERVICE FACILITY INVESTIGATE AT TEAR-DOWN TO DETERMINE IF CAUSED BY FAILED INTERNAL COMPONENT OR IF CAUSED BY WATER CONTAMINATION.

Part: HOSE — CHAFED (ZONE 400) · airframe 1,202 hrs · 1,046 cycles

DURING SCHEDULED INSP, FOUND LT ENG COMPARTMENT FUEL HOSE ASSY CHAFED PAST SERVICE LIMITS FROM CONTACT WITH ADJACENT COWLING STRUCTURE. REPLACED HOSE ASSY WITH NEW HOSE ASSY AND SECURED AS REQUIRED. 390 SERIES POWERPLANT INSTALLATIONS HAVE TIGHT CLEARANCES BETWEEN HOSES, WIRING, TUBING, ETC. AND ADJACENT STRUCTURES, TECH SHOULD PAY CLOSE ATTENTION TO THE MM 71-00-00-201 INSP REQUIREMENTS WHENEVER LINES, TUBING, ETC. ARE DISTURBED. CLEARANCE INSP REQUIRED EACH 200 HR AIRFRAME INSP OR ENG INSTALLATION, SHOULD BE CLOSELY ADHERED TO.

Part: WASHER — MISINSTALLED (MLG WHEEL) · airframe 284 hrs · 232 cycles

DURING WHEEL DISASSEMBLY FOR TIRE REPLACEMENT FOUND WHEEL TIE BOLT CHAMFERED WASHERS INSTALLED INCORRECTLY, WITH CHAMFERED SIDES TOWARDS WHEEL HALF. NOTED WASHERS TO BE BENT, WHEEL TIE BOLT HEADS UNDERSIDE RADIUSES DAMAGED. SUSPECT TECHNICIAN ASSEMBLING WHEELS AT PREVIOUS TIRE CHANGE AT ANOTHER FACILITY DID NTO FULLY FOLLOW COMPONENT MM AND WAS NOT FAMILIAR WITH INSTALLATION OF MS20002 SERIES CHAMFERED WASHERS. (K)

Part: WASHER — MISINSTALLED (WHEEL)

DURING WHEEL DISASSEMBLY FOR TIRE REPLACEMENT FOUND WHEEL TIE BOLT CHAMFERED WASHERS INSTALLED INCORRECTLY, WITH CHAMFERED SIDES TOWARDS WHEEL HALF. NOTED WASHERS TO BE BENT, WHEEL TIE BOLT HEADS UNDERSIDE RADIUSES DAMAGED. SUSPECT TECHNICIAN ASSEMBLY WHEELS AT PREVIOUS TIRE CHANGE AT ANOTHER FACILITY DID NOT FULLY FOLLOW COMPONENT MM AND WAS NOT FAMILIAR WITH INSTALLATION OF MS20002 SERIES CHAMFERED WASHERS. (K)

Part: DUCT — DISCONNECTED (AFT A/C) · airframe 6,758 hrs · 4,025 cycles

DETECTED A RISE IN CABIN ALTITUDE THAT WAS NOT CONSIDERED NORMAL. MADE A PRECAUTIONARY DESCENT AND PERFORMED THE CABIN PRESSURE LOW CHECKLIST. LANDED AIRCRAFT AT INTENDED DESTINATION WITHOUT INCIDENT. FOUND A/C DISTRIBUTION DUCT FORWARD OF APU DISCONNECTED. RECONNECTED DUCT.

Part: ROD BEARING — DELAMINATED (ENGINE)

DURING ROUTINE OIL CHANGE METAL FOUND IN OIL FILTER. METAL FOUND TO BE BEARING MATERIAL COMING FROM CONNECTING ROD BEARING PREMATURE FAILURE. BEARING MATERIAL IS DELAMINATING. CONNECTING ROD BEARING MANUFACTURE DATES ARE (ML-KS 2-9A AND 3-99) MANUFACTURING DEFECT/PROBLEM KNOWN TO MFG. CRANKSHAFT GRIND REQUIRED TO CORRECT JOURNAL HEAT DEFECTS. (WPO1200303672)

Part: IGNITER — UNAPPROVED PART (ENGINE)

WE ARE PERFORMING A PHASE A INSPECTION AGAIN 183.6 HOURS LATER. REMOVED ENGINE IGNITORS IN AN UNAIRWORTHY CONDITION. FOUND ALL FOUR IGNITORS IN AN UNAIRWORTHY CONDITION. THE CENTER ELECTRODE IS ABLE TO MOVE BACK AND FORTH INSIDE IGNITOR. TAKING THE IGNITOR IN HAND AND LIGHTLY SHAKING YOU CAN HEAR AND SEE CENTER ELECTRODE MOVING FORE AND AFT INSIDE IGNITOR BODY. FOLLOWING IS THE DATA FOUND ON THE IGNITOR BODY, ALL 4 IGNITOR S/N LISTED: (NR 1-99076345), NR 2-99076289, NR 3-99076330, NR 4-99076342.

Part: IGNITER — DEFECTIVE (ENGINE)

WE ARE PERFORMING A PHASE A INSPECTION AGAIN 183.6 HOURS LATER. REMOVED ENGINE IGNITORS FROM BOTH ENGINES FOR INSPECTION ONLY. FOUND ALL FOUR IGNITORS IN AN UNAIRWORTHY CONDITION. THE CENTER ELECTRODE IS ABLE TO MOVE BACK AND FORTH INSIDE IGNITOR. TAKING THE IGNITOR IN HAND AND LIGHTLY SHAKING, YOU CAN HEAR AND SEE CENTER ELECTRODE MOVING FORE AND AFT INSIDE IGNITOR BODY . FOLLING IS THE DATA FOUND ON THE IGNITOR BODY, SN LISTED: NR 1-99076345, (NR 2-99076289), NR 3-99076330, NR 4-99076342.

Part: IGNITER — DEFECTIVE (ENGINE)

WE ARE PERFORMING A PHASE A INSPECTION AGAIN 183.6 HOURS LATER. REMOVED ENGINE IGNITORS IN AN UNAIRWORTHY CONDITION. THE CENTER ELECTRODE IS ABLE TO MOVE BACK AND FORTH INSIDE IGNITOR. TAKING THE IGNITOR IN HAND AND LIGHTLY SHAKING YOU CAN HEAR AND SEE CENTER ELECTRODE MOVING FORE AND AFT INSIDE IGNITOR BODY. FOLLOWING IS THE DATA FOUND ON THE IGNITOR BODY, SN: NR1-99076345, NR2-99076289,( NR3-99076330), NR4-99076342.

Part: IGNITER — DEFECTIVE (ENGINE)

WE ARE PERFORMING A PHASE A INSPECTION AGAIN 183.6 HOURS LATER. REMOVED ENGINE IGNITORS FROM BOTH ENGINES FOR INSPECTION ONLY. FOUND ALL FOUR IGNITORS IN AN UNAIRWORTHY CONDITION. THE CENTER ELECTRODE IS ABLE TO MOVE BACK AND FORTH INSIDE IGNITOR. TAKING THE IGNITOR IN HAND AND LIGHTLY SHAKING, YOU CAN HEAR AND SEE CENTER ELECTRODE MOVING FORE AND AFT INSIDE IGNITOR BODY. FOLLOWING IS THE DATA FOUND ON THE IGNITOR BODY, SN: NR1-99076345, NR2-99076289, NR3-99076330, (NR4-99076342)