N1079U

Part: ENGINE — CORRODED (NACELLE) · airframe 16,590 hrs

CORROSION AT 12 OCLOCK. SENT TO PRATT AND WHITNEY FOR INSPECTION AND REPAIR.

Part: GPS RECEIVER — FAILED (COCKPIT)

GPS RECEIVER FAILED ON SHORT FINAL.

Part: COMPENSATOR — MALFUNCTIONED (ENGINE TIT)

TRIM COMPENSATOR TURNED TO 100 DEGREES AND WILL NOT DROP TEMPS. WITHIN RANGE.

Part: GYRO — INOPERATIVE (COCKPIT)

RATE GYRO TURN NEEDLE INOPERATIVE.

Part: PUMP — MALFUNCTIONED (FUEL BOOST)

LOW FUEL PRESSURE.

Part: INVERTER — INOPERATIVE (AC SYSTEM)

INVERTER INOPERATIVE.

Part: INVERTER — MALFUNCTIONED (AC SYSTEM)

INVERTER HAS LOW VOLTAGE OUTPUT.

Part: TRIM COMPENSATOR — INACCURATE (ENGINE TIT)

TRIM COMPENSATOR ADJUSTED TO 100. WILL NOT LOWER TEMP INDICATION TO WITHIN RANGE.

Part: GENERATOR — FAILED (START/GEN)

STARTER/GENERATOR WILL NOT COME ON-LINE.

Part: FUEL CONTROL — MALFUNCTIONED (NR 1 ENGINE)

WHILE IN CRUISE FLIGHT, NR 1 ENGINE TORQUE WENT LOW WHICH RESULTED IN A 20 PERCENT TORQUE SPLIT BETWEEN NR 1 AND NR 2 ENGINES. PILOT RETURNED TO BASE AND LANDED WITHOUT INCIDENT. TROUBLESHOOTING BY MAINTENANCE REVEALED DEFECTIVE FUEL CONTROL. REPLACED SAME. REF: P & W IPC, 72-00-10, FIGURE 1, ITEM 101.

Part: COMPENSATOR — MALFUNCTIONED (ENGINE TIT)

TRIM COMPENSATOR WILL NOT BRING TEMPERATURE ANY LOWER THAN 75 CHANGE.

Part: INDICATOR — INOPERATIVE (COCKPIT)

ALTIMETER INDICATOR INDICATED 150 FEET AT 1,000 AND 2,000 FEET. INOPERATIVE.

Part: INDICATOR — MALFUNCTIONED (COCKPIT HSI)

COURSE DIGITIZER OUT OF ALIGNMENT.

Part: DUAL AMMETER — STICKS (COCKPIT)

DUAL AMMETER NR 2 NEEDLE IS STICKING.

Part: ALTIMETER — FAILED (COCKPIT)

ALTIMETER FAILED FRICTION ERROR TEST.

Part: TRANSMITTER — FAILED (ENGINE)

TORQUEMETER READS LOW, OUT OF TOLERANCE.

Part: INDICATOR — STUCK (TORQUEMETER)

INDICATOR NEEDLE STUCK AT ZERO.

Part: BEACON — WEAK (STROBE)

BEACON IS WEAK.

Part: INDICATOR — FAILED (TRIPLE TACH)

NR 2 NEEDLE READING HIGH.

Part: EPIRB — DEFECTIVE (EMERG LOCATOR)

EPIRB CASE IS SWOLLEN. CORROSION IN ANTENNA MOUNT.

Part: EPIRB — DEFECTIVE (ANTENNA)

EPIRB ANTENNA BROKEN AND BODY CRACKS IN BOTTOM.

Part: BEARING — WORN (M/R DAMPER)

M/R DAMPER BEARINGS WORN.

Part: TACH GENERATOR — SHAFT WORN (ROTOR)

ROTOR TACH GEN SHAFT WORN.

Part: INDICATOR — FAILED (ENG)

NR1 NEEDLE DOES NOT INDICATE.

Part: LINER ASSY — BURNT (COMB CHAMBER)

COMBUSTION LINER ASSY BURNT LOUVERS.

Part: CVR — WONT TEST (COCKPIT)

CVR WILL NOT TEST.

Part: HARNESS — FAILED (ENGINE)

HARNESS BURNT PROBE TIP.

Part: VANE RING ASSY — CRACKED (POWER PLANT)

VANE RING ASSY CRACKED BEYOND LIMITS.

Part: CVR — MALFUNCTION (COCKPIT)

CVR HAS EXCESSIVE NOISE ON TAPE.

Part: RADAR ALTIMETER — DEFECTIVE (COCKPIT)

DH BUG WILL NOT GO PAST 1800 FEET AND FLAG WILL NOT PULL. ALSO NEEDLE IS OFF 20 FEET.

Part: INDICATOR — PRECESSES (COCKPIT ATTITUDE)

PRECESSES 5 PERCENT RIGHT AND 5 PERCENT NOSE UP IN 10 MINUTES OF FLIGHT.

Part: INDICATOR — READS HIGH (XMSN OIL)

PRESSURE SIDE READS HIGH. TEMP SIDE HAS EXCESSIVE FRICTION ERROR.

Part: ENCODER — STICKS (COCKPIT ALT)

INCONSISTENT OUTPUT AND NEEDLE INTERMITTENTLY STICKS. TIME SINCE REPAIR 1008:55.

Part: FUEL PROBE — FAILED (FUEL SYS)

FUEL PROBE READS HIGH OUT OF TOLERANCE.

Part: DAMPER ASSY — LEAKING (M/R)

DAMPER LEAKING OIL.

Part: INDICATOR — DEFECTIVE (COCKPIT HSI)

HSI INDICATOR COURSE SELECT KNOB HARD TO TURN. TIME SINCE REPAIR 237:35.

Part: SHAFT — CORRODED (T/R GR BOX)

SHAFT IS CORRODED.( FOUND EXCESSIVE CORROSION IN SPLINES "N" (REF. BHT 412 CR&0 SEC. 65-00-00 PAGE 133 FIG. 65-40) BEYOND LIMITS. REPLACED WTH SERVICEABLE SHAFT.

Part: INDICATOR — INTERMITTENT (TRIPLE TACH)

#1 NEEDLE HAS INTERMITTENT OPERATION.

Part: INDICATOR — FAILED (NR 1 TORQUE)

TORQUEMETER #1 NEEDLE HAS NO INDICATION.

Part: TRANSCEIVER — MIS WIRED (COCKPIT)

HUM ON LINE AND AUDIO CUTS OUT WHEN POWER SUPPLY IS DECREASED BELOW +280. FOUND THE INPUT AND OUTPUT OF U2 WAS WIRED WRONG. REWIRED U2 CORRECTLY AND UNIT MEETS MANUFACTURERS SPECS. REPAIRED.

Part: DAMPER ASSY — DEFECTIVE (M/R)

FLUID CONTAMINATION AND GLASS IS UNREADABLE.

Part: DAMPER ASSY — DEFECTIVE (M/R)

FLUID CONTAMINATION AND GLASS IS UNREADABLE.

Part: INDICATOR — DEFECTIVE (COCKPIT RADAR)

UNIT HAD BROKEN "MAP" SWITCH, REPLACED SWITCH WITH SPARE. REPAIRED.TROUBLESHOT UNIT FURTHER AND FOUND VIDEO BOARD TO BE INTERMITTENT AND LOGIC #2BOARD BAD. CAUSES DISTORTED DISPLAY.

Part: CONTROL UNIT — DEFECTIVE (DC SYS)

#2 GENERATOR KICKS OFF LINE WHEN ANY INVERTER IS TURNED ON.

Part: CONTROL UNIT — DEFECTIVE (DC SYS)

CONTROL UNIT DEFECTIVE. GENERATOR WOULD NOT COME ON LINE.

Part: GEAR ASSY — WORN (SEAL RIDE)

WORN SEAL RIDE AREA.

Part: TRANSCEIVER — DEFECTIVE (COCKPIT VHF)

TRANSMIT BREAKS UP.

Part: INDICATOR — WONT TEST (COCKPIT RADAR)

WILL NOT TEST. INOPERATIVE.

Part: CONTROL UNIT — DEFECTIVE (COCKPIT VHF)

INSPECT FOR CORROSION. INSPECTED CONTROL UNIT, BUT FOUND NO CORROSION. HOWEVER, FOUND THUMBWHEEL TO BE INTERMITTENTLY DIALING UP WRONG FREQUENCIES. REPLACED 1 EACH S1 THUMBWHEEL. REPAIRED.

Part: TRANSCEIVER — DEFECTIVE (COCKPIT DME)

INSPECT FOR CORROSION. DISASSEMBLED TRANSCEIVER UNIT AND CHECKED FOR OIL AND CORROSION. CLEANED AS NEEDED. ALIGNED RECEIVER AND IF SECTION FOR PROPER RECEIVE SENSITIVITY. INSPECTED AND UNT BENCH CHECK GOOD.

Part: VALVE — INOPERATIVE (FUEL XSFER)

VALVE INOPERATIVE.

Part: SELECTOR — STICKS (FUEL QTY)

SWITCH STICKS IN RIGHT POSITION.

Part: VALVE — INOPERATIVE (FUEL XSFER)

VALVE INOPERATIVE.

Part: FUEL PUMP — FAILED (NR 1 ENG)

#1 ENGINE FLAMED OUT IN FLIGHT. FOUND FUEL PUMP DRIVE COUPLING FAILURE. MALE SPLINES ON DRIVE GEAR INSIDE PUMP WERE ROUNDED OFF. REPLACED FUEL PUMP AND RETURNED TO SERVICE.

Part: SPAR — DENTED (AFT FIN)

DENT AT UPPER END OF SPAR.

Part: BLADE — DEFECTIVE (T/R)

TIP CLOSURE WORN THROUGH AND SEPARATED.

Part: BLADE — SEPARATION (T/R)

SEPARATION ON TIP CAP AND BLADE SKIN.

Part: FUEL PUMP — FAILED (NR 1 ENGINE)

NR 1 ENGINE FLAMED OUT IN-FLIGHT. FOUND FUEL PUMP DRIVE COUPLING FAILURE. MALE SPLINES ON DRIVE GEAR INSIDE PUMP WERE ROUNDED OFF.