N40DK
Operators of this aircraft
Who operated this tail, and how firmly we know it.
No operator established for this aircraft.
Accident & incident history
No NTSB accidents or incidents on file for this aircraft.
Maintenance disclosures
Service Difficulty Reports filed with the FAA for this airframe. Filing is largely voluntary — the number of reports is not a measure of reliability. To verify a report, search its control number at the FAA SDRS site.
23 reports on file, 1998-07-24 – 2009-03-30.
Part: BRAKE — FIRE (MLG) · airframe 14,692 hrs
DURING A MX HIGH SPEED TAXI CHECK SMOKE NOTICED OUT OF PILOTS SIDE WINDOW. ACFT STOPPED ON RUNWAY AND CABIN DOOR OPENED AT WHICH TIME A FIRE WAS FOUND ON LT MLG WHEEL AREA. ACFT SHUTDOWN AND FIRE EXTINGUISHED. PRIOR TO THE TAXI TEST A FULL BRAKE AND ANTI-SKID FUNCTIONAL CHECK IAW MM PERFORMED WITH SATISFACTORY RESULTS. ORIGINAL SQUAWK WAS A SLIGHT PULL TO LT DURING LANDING WHEN TRANSITIONING THRU SLOWER SPEEDS. NOSE WHEEL STEERING NOT ARMED WHEN PULL WAS NOTICED. RT BRAKES & WHEELS SUSTAINED EXCESSIVE HEATING WITH NO DEFLATION OR FIRE. ALL BRAKING COMPONENTS WERE REMOVED FROM ACFT AND SENT TO MFG FOR EVALUATION. PROBABLE CAUSE OF FIRE WAS OVERHEATING OF BRAKES. NO TURNAROUND LIMITATION EXIST FOR THIS ACFT. IT IS SUGGESTED OPERATORS USE A TURNAROUND TIME LIMITATION TO ALLOW SUFFICIENT COOLING BETWEEN MEDIUM TO HIGH ENERGY BRAKING APPLICATIONS.
Earlier reports · 1998–2004 · 22 reports
2004
Part: HEAT EXCHANGER — CLOGGED (CABIN COOLING)
THE COOLING FINS WERE COMPLETELY OBSTRUCTED WITH OIL, DUST, FILM. YOU CAN NOT GAIN ACCESS OF THE COMPONENT, SHORT OF REMOVING IT FROM THE SYSTEM.
Part: BRAKE ASSY — WORN (MLG) · airframe 11,802 hrs
BRAKE ASSY WORN TO LIMITS. REPLACED WITH SERVICABLE UNIT. 05/06/2004
Part: BRAKE ASSY — WORN (MLG) · airframe 11,802 hrs
BRAKE ASSY WORN TO LIMITS. REPLACED WITH SERVICABLE UNIT. 05/06/2004
Part: BRAKE ASSY — WORN (MLG) · airframe 11,802 hrs
BRAKE ASSY WORN TO LIMITS. REPLACED WITH SERVICABLE UNIT. 05/06/2004
Part: BRAKE ASSY — WORN (MLG) · airframe 11,802 hrs
BRAKE ASSY WORN TO LIMITS. REPLACED WITH SERVICABLE UNIT. 05/06/2004
Part: GYRO — INOPERATIVE (COCKPIT) · airframe 11,677 hrs
GYRO UNIT INOPERATIVE WHEN POWER SUPPLIED. REPLACED WITH SERVICABLE UNIT. 04/05/2004
Part: TRANSCEIVER — INTERMITTENT (DME SYSTEM) · airframe 11,614 hrs
DME TRANSCEIVER UNIT IS WEAK AND INTERMITTENT. UNIT ONLY LASTED 69.5 HOURS. REPLACED WITH SERVICEABLE UNIT. 02/24/2004
Part: LIGHT — INOPERATIVE (AUTOPILOT SYS) · airframe 11,566 hrs
SEVERAL LIGHTS INOPERATIVE ON UNIT. MRA NR 1155272-000020 REPLACED WITH SERVICABLE UNIT. 02/16/2004
Part: INDICATOR — INOPERATIVE (RADAR) · airframe 11,544 hrs
MODE BUTTONS ILLEGIBLE. REPLACED WITH SERVICABLE UNIT. 02/06/2004
Part: TRANSCEIVER — INOPERATIVE · airframe 11,544 hrs
UNIT WILL NOT LOCK-ON X CHANNELS. Y CHANNEL OKAY. REPLACED WITH SERVICEABLE UNIT. 02/06/2004
Part: POTENTIOMETER — INTERMITTENT (VOLUME) · airframe 11,544 hrs
VOLUME POT INTERMITTENT. REPLACED WITH SERVICEABLE UNIT. 02/04/2004
Part: TRANSCEIVER — INOPERATIVE (DME SYS) · airframe 11,544 hrs
DME HAS AUDIO TONE ON ALL THE TIME. REPLACED WITH SERVICEABLE UNIT. 02/04/2004
Part: BRAKE ASSY — WORN · airframe 11,527 hrs
BRAKE ASSY WORN. REPLACED WITH SERVICABLE UNIT. 01/27/2004
Part: TIMER — FAILED (DE ICE SYSTEM) · airframe 11,507 hrs
DE ICE TIMER WILL NOT HEAT RT PARTING ELEMENT. REPLACED WITH SERVICEABLE UNIT. 01/16/2004
2003
Part: COMPUTER — INOPERATIVE (MACH TRIM) · airframe 11,343 hrs
MACH TRIM COMPUTER INOPERATIVE. REPLACED WITH SERVICEABLE UNIT. 12/9/03
Part: RECORDER — INOPERATIVE (COCKPIT) · airframe 11,342 hrs
VOICE RECORDER INOPERATIVE. REPLACED WITH SERVICEABLE UNIT. 11/11/03
Part: SOLENOID VALVE — LEAKING (MLG) · airframe 11,342 hrs
SOLENOID VALVE LEAKING. REPLACED WITH SERVICEABLE UNIT.
Part: RELAY — MALFUNCTIONED (COCKPIT) · airframe 11,291 hrs
REQUEST WARRANTY CONSIDERATION. PART LASTED ONLY 321.8 HOURS. K4 RELAY KEEPS RT STANDBY PUMP ON WITH SWITCH OFF. MRA NR: 1125180-000020 REPLACED WITH SERVICEABLE UNIT. 9/22/03
Part: ACTUATOR — MALFUNCTIONED (MLG) · airframe 10,965 hrs
ACTUATOR WOULD NOT INDICATE DOWN AND LOCKED. REPLACED WITH SERVICEABLE UNIT.
2001
Part: HYDRAULIC LINE — LOOSE (HYDRAULIC SYS)
SCHEDULED LANDING GEAR HOSE CHANGE PERFORMED 15.5 HOURS EARLIER. AIRCRAFT WAS EN ROUTE, ABOUT 1.5 HOURS INTO FLIGHT, HYDRAULIC PRESSURE DROPPED TO 1000 PSI. AFTER 20 MINUTES, PRESSURE DROPPED TO ZERO. PILOT ELECTED TO DIVERT AND AN EVENTFUL LANDING WAS MADE. AIRCRAFT WAS PLACED ON JACKS. MAINTENANCE DISCOVERED UPPER END OF SUBJECT HOSE HAD LOOSENED FROM SLIGHT MISALIGNMENT. REPOSITIONED HOSE AND RETORQUED. OPS CHECKED OK.
2000
Part: BEARING — FAILED (NR 2 GENERATOR)
AIRCRAFT TOOK OFF FROM TEB TO AGC AND LOST NR 2 TRANSPONDER AND NR 2 NAV RADIO SHORTLY AFTER TAKEOFF. BOTH GENERATORS DROPPED OFF-LINE, RT SIDE WOULD NOT RESET. PILOT LANDED AGAIN AT TEB WITHOUT FURTHER INCIDENT. AFTER SOME TROUBLESHOOTING, FOUND RT CURRENT LIM. BLOWN. GROUND RUN OF BOTH GENERATORS OK, BUT DECIDED TO REMOVE NR 2 GENERATOR. FOUND BOTH DRIVE AND ANTI-DRIVE BEARINGS DESTROYED INSIDE GENERATOR. INSTALLED NEW GENERATOR, OPERATION CHECKED NORMAL. FAILED GENERATOR HAD 906.0 HRS TSO, AND WAS DUE FOR BEARING CHANGE AT 1,050 HRS TSO. BEARING FAILED 144 HRS PRIOR TO DUE POINT. (X)
1998
Part: BOLT — MISINSTALLED (NLG STRUT)
NOSE GEAR DOOR MECHANISM ROD ATTACH POINT BOLT P/N AN24-30 TO NOSE STRUT IS BEING INSTALLED INCORRECTLY ACCORDING TO LEARJET IPC CH 32-23-05, FIG 05, ITEM -21, PAGE 0, AND CAUSING GOUGING TO THE SKIN AT FRAME 5, FS 160.77. IN REFERENCE TO THE ILLUSTRATION, THE POSITION OF THE BOLT HEAD SHOULD BE INSTALLED WITH THE BOLT HEAD FACING OUTBOARD TO MAINTAIN CLEARANCE BETWEEN THE BOLT HEAD AND FRAME SKIN. THE GOUGING OCCURS WHEN THE BOLT HEAD IS BEING INSTALLED IN THE INBOARD POSITION AND THE THREADED PORTION OF THE BOLT IS GOUGING THE FRAME SKIN. THERE IS NO NOTE OR CAUTION IN THE LEARJET MM.