ARKANSAS CHILDRENS HOSPITAL

Operated by Arkansas Children's Hospital (per NTSB report)

The pilot’s failure to maintain adequate clearance during landing on a rooftop helipad.

Operated by Arkansas Childrens Hospital (per NTSB report)

The improper securing of the exhaust duct bolts, which resulted in the duct becoming unseated and substantial heat damage to the tail rotor drive shaft.

Part: EEC — DEFECTIVE (NR 1 ENGINE) · airframe 8,227 hrs

NR 1 ENGINE ILLUMINATED MULTIPLE CASE MESSAGES INFLIGHT.

Part: FILTER — MELTED (ZONE 100) · airframe 6,913 hrs

EMI FILTER / RELAY FAILED CAUSING PLASTIC COVER TO MELT

Part: DISPLAY — FAILED (COCKPIT) · airframe 6,688 hrs

CO-PILOT IAD SCREEN WENT BLACK DURING FLIGHT AND WOULD NOT POWER UP.

Part: DISPLAY — FAILED (COCKPIT) · airframe 6,685 hrs

CO-PILOT IAD FAILED IN FLIGHT.

Part: GENERATOR — WORN (ZONE 200) · airframe 5,489 hrs

AC GEN BEARING LIGHT ILLUMINATED IN FLIGHT.

Part: HARNESS — INTERMITTENT (ZONE 700) · airframe 4,420 hrs

DURING LANDING GEAR RETRACTION, #2 SERVO BYPASS LIGHT ILLUMINATED. AIRCRAFT ABORT TRIP AND RECOVERED TO KLIT

Part: HYDRAULIC SYSTEM — INTERMITTENT (ZONE 200) · airframe 4,715 hrs

UPON SHUTDOWN A EXCEEDANCE WAS NOTED FOR HIGH HYDRAULIC PRESSURE. AFTER TROUBLESHOOTING / HUMS DOWNLOAD IT WAS NOTED THAT HYDRAULIC PRESSURE HAD REACHED 3340 PSI. CONDUCTING RUNUPS RESULTED IN #2 HYDRAULIC PRESSURE NOT BEING VERY STEADY / VERY WEAK REGULATION. REPLACED #2 HYDRAULIC PUMP. AIRCRAFT RETURNED TO SERVICE.

Part: NONE — FAILED (ZONE 100) · airframe 4,408 hrs · 8,167 cycles

ON OUTBOUND LEG OF HEMS FLIGHT #1 VMM FAILED WITH LOSS OF COPILOTS INSTRUMENTS. TRIP ABORTED AND AIRCRAFT RETURNED TO KLIT

Part: TAB — MISSING (TRIM SYS) · airframe 3,999 hrs · 7,909 cycles

ONE INBOARD TRIM TAB MISSING DURING PREFLIGHT

Part: SERVO — UNSERVICEABLE (ZONE 200) · airframe 3,734 hrs

FORWARD AND AFT VIBRATION FELT IN THE CYCLIC DURING HOVER AND FLIGHT.

Part: SERVO — LEAKING (TAIL ROTOR) · airframe 3,709 hrs

TAIL ROTOR SERVO LEAKING AT SHAFT SEAL.

Part: ATTACH BRACKET — CRACKED (ZONE 400) · airframe 1,645 hrs

NR 1 & NR 2 ENGINE BLEED VALVE SUPPORT BRACKETS BOTH CRACKED THROUGH SUPPORT SADDLES.

Part: TRANSDUCER — OUT OF LIMITS (NR 1 AUTOPILOT) · airframe 1,617 hrs

NR 1 AUTOPILOT DISENGAGED DURING CRUISE FLIGHT. FOUND THE TRANSDUCER OUT OF LIMITS.

Part: TRANSDUCER — OUT OF LIMITS (NR 1 AUTOPILOT) · airframe 1,617 hrs

NR 1 AUTOPILOT DISENGAGED DURING CRUISE FLIGHT. ROLL TRANSDUCER OUT OF LIMITS.

Part: BLADE — DEBONDED (TAIL ROTOR) · airframe 1,559 hrs

DURING SPECIAL 25 HOUR TAIL ROTOR BLADE INSPECTION, OUTBOARD BLADE WAS NOTED TO BE DEBONDED FROM TAIL ROTOR PITCH HORN.

Part: DISPLAY — FAILED (NR 1) · airframe 1,536 hrs

DURING FLIGHT #1 SIDE MFD PRODUCED FAIL MESSAGE. WOULD NOT REBOOT.

Part: PUMP — INOPERATIVE (ZONE 100) · airframe 1,637 hrs

AIR MEDICAL PUMP WILL NOT OPERATE. UPON POWER APPLIED TRIPS CIRCUIT BREAKER PROTECTION

Part: VOR SYSTEM — FAILED (NR 2) · airframe 1,583 hrs

#2 NAV HAS FAILURE CODE WHEN ON FREQS ABOVE 109

Part: AUTOPILOT SYS — MALFUNCTIONED (NR 2) · airframe 1,487 hrs

DURING AIRCRAFT RUN-UP, NR 2 AUTOPILOT WOULD NOT COMPLETE BIT TEST DURING AP TEST. UNABLE TO CLEAR OR RESET.

Part: WIRE HARNESS — INOPERATIVE (MLG DOWNLOCK) · airframe 1,379 hrs

RIGHT MAIN LANDING GEAR DOWN LOCK LIGHT WOULD NOT ILLUMINATE ON GEAR PANEL. APPROACH TO HOSPITAL ABORTED AND AIRCRAFT RETURNED TO HANGAR. MAIN GEAR TESTED TO ENSURE DOWN AND LOCKED. TESTING REVEAL RIGHT MAIN GEAR WIRE HARNESS DOWN SENSOR INOPERATIVE. THE WIRE HARNESS REPLACED AND AIRCRAFT RETURNED TO SERVICE.

Part: WIRE — BROKEN · airframe 1,265 hrs

NR 2 MCDU FAILURE LIGHT ON POWER UP. LOCATED BROKEN WIRE AT CONNECTOR PLUG P180R PIN 39, MCDU HEALTH DISCREET TO VMM P100R B H05 PIN. WIRE WAS TOO SHORT UPON ORIGINAL INSTALL, REULT CAUSED BREAKAGE

Part: WIRE HARNESS — DAMAGED (RT MLG) · airframe 1,263 hrs

RIGHT MLG HARNESS CAUSING LANDING GEAR POSITION INDICATION FAULTS. ABORTED APPROACHED. RETURNED TO BASE. GEAR CONFIRMED DOWN PRIOR TO LANDING. INSTALLED SEGMENT (S26 LEG) REMOVED FROM REPLACEMENT HARNESS AND INSTALLED.

Part: AHRS — FAILED (NR 2) · airframe 1,257 hrs

NR 2 AHRS FAILED ON RUN UP.

Part: SERVO — LEAKING (MLG) · airframe 1,257 hrs

NR 2 SERVO BYPASS WHEN GEAR UP SELECTED. HYDRAULIC LEAK.

Part: MOTOR — FAILED (BLOWER) · airframe 1,247 hrs

FAILED, EVAPERATION BLOWER.

Part: COVER — SPLIT (GLARESHIELD) · airframe 1,185 hrs

GLARESHIELD COVER IS CRACKING AND SPLITTING.

Part: WIRE HARNESS — BROKEN (LT MLG) · airframe 1,193 hrs

LEFT MLG DOWN INDICATION INTERMITTENT. LEG HAS BROKEN WIRES IN HARNESS.

Part: HARNESS — BROKEN (LT MLG) · airframe 1,193 hrs

LEFT MLG DOWN INDICATION INTERMITTENT. FOUND WIRE HARNESS BROKEN.

Part: WIRE HARNESS — BROKEN (ZONE 700) · airframe 1,193 hrs

DURING LANDING APPROACH TO HOSPITAL LANDING PAD, LT MAIN LANDING GEAR UNSAFE LIGHT WOULD NOT EXTINGUISH AND GREEN SAFE LIGHT NOT ILLUMINATED. APPROACH ABORT AND TRANSITIONED TO THE AIRPORT WHERE A VISUAL OF THE LANDING GEAR WAS COMPLETED TO ENSURE DOWN. LT SEGMENT OF MAIN GEAR HARNESS WIRE BROKEN. REPLACED AFFECTED PART AIRCRAFT RETURNED TO SERVICE.

Part: PRESSURE SWITCH — INTERMITTENT (HYD SYSTEM)

DURING RETURN LEG OF FLIGHT, NR 2 HYDRAULIC SYSTEM CAUTION LIGHT ILLUMINATED. EMERGENCY PROCEDURES APPLIED BY DEACTIVATING SYSTEM. LIGHT RETURNED AND LANDED. TROUBLESHOOTING PRODUCED AN INTERMITTENT NR 2 HYDRAULIC SYSTEM PRESSURE SWITCH. SWITCH REPLACED AIRCRAFT PASSED ALL MAINTENANCE OPERATIONAL CHECKS AND RETURNED TO SERVICE

Part: RELAY — INOPERATIVE (HYD SYSTEM) · airframe 12,356 hrs · 22,027 cycles

DURING CRUISE FLIGHT, THE NR 2 HYDRAULIC SERVO SYSTEM WARNING CAUTION LIGHT ILLUMINATED. DECLARED EMERGENCY AND RETURNED TO DEPARTURE. REPLACED THE NR 2 SERVO RELAY AND AS A PRECAUTION, REPLACED THE NR 2 HYDRAULIC MODULE PRESSURE SWITCH.

Part: WARNING LIGHT — ILLUMINATED (GEARBOX CHIP) · airframe 10,534 hrs · 18,741 cycles

MAIN GEAR BOX CHIP LIGHT ILLUMINATED ON RUNUP.

Part: IGNITER BOX — WEAK (ENGINE) · airframe 10,521 hrs

ENGINE FAILED TO START. IGNITER BOX REPLACED.

Part: TRANSDUCER — INTERMITTENT (ZONE 200) · airframe 10,063 hrs

MINOR DECU FAULT, COLLECTIVE POSITION FAULT.

Part: INTERPHONE — INOPERATIVE (ZONE 100) · airframe 10,047 hrs

CAN NOT COMMUNICATE WITH OTHER SEAT POSITIONS IN CABIN.

Part: SMOKE WARNING — ILLUMINATED (AFT CARGO BAY) · airframe 9,988 hrs

AFT CARGO BAY SMOKE DETECTION WARNING LIGHT ILLUMINATED DURING FLIGHT.

Part: STARTER GEN — MALFUNCTIONED (ZONE 600) · airframe 9,562 hrs

DURING CRUISE FLIGHT CENTER IIDS DISPLAY BEGAN FLASHING. DC ELECTRICAL POWER PULSING ON NR 2 SYSTEM FROM 0 TO 11 AMPS OUTPUT ONLY (NORMALLY 140AMPS). ESS VOLTS LOW LIGHT ILLUMINATED ON SHORT FINAL. RADIOS WERE SWITCHED TO EMERGENCY SETTING SO COMMUNICATION WAS LOST.

Part: ENGINE — POWER LOSS · airframe 4,967 hrs · 8,528 cycles

DURING CLIMB OUT FROM CONFINED AREA, ENGINE AND ROTOR RPM FLUCTUATED. ROTOR RPM DROOPED, COLLECTIVE APPLIED, ACTIVATED NR 2 ENGINE OEI LIGHT.

Part: BEARING SUPPORT — LOOSE (NR 2 DRIVESHAFT) · airframe 3,632 hrs

NR 2 DRIVESHAFT SUPPORT BEARING EXTREMELY LOOSE IN HOUSING. EXCESSIVE GREASE PURGED OUT.

Part: BOLT — DAMAGED (M/R BLADE) · airframe 3,232 hrs

1 M/R BLADE RETENTION BOLT HAS 1 PULLED THREAD.

Part: HEATER — INOPERATIVE (STATIC PORT) · airframe 3,232 hrs

LT UPPER HEATED STATIC PORT WILL NOT HEATUP.

Part: RELAY — NO TEST (ATTITUDE) · airframe 3,232 hrs

STANDBY ATTITUDE IND WILL NOT TEST.

Part: PRESSURE SWITCH — STICKING (INLET ANTI ICE) · airframe 3,232 hrs

NR 1 ENGINE INLET ANTI-ICE LIGHTS INTERMITTENTLY.

Part: HEATER — INOPERATIVE (NR 1 NACELLE) · airframe 3,232 hrs

NR 1 ENGINE HEATED FIREWALL INOP, WILL NOT HEAT. TEMP SENSOR BAD.

Part: HEATER — BURNED OUT (RT NACELLE) · airframe 3,019 hrs

RT FWD HEATED SNOW BLANKET WILL NOT HEAT. TEMP SENSOR OUT OF RANGE.

Part: TRANSDUCER — INTERMITTENT (AUTOPILOT) · airframe 2,867 hrs

DURING FLIGHT AL-300 DISPLAYS 1E30 CODE INTERMITTENTLY.

Part: TRANSPONDER — INOPERATIVE (ATC) · airframe 3,005 hrs

ATC UNABLE TO TRACK AIRCRAFT TRANSPONDER INFLIGHT.

Part: MOTOR — INOPERATIVE (BLOWER) · airframe 2,991 hrs

AIRCONDITIONING EVAP BLOWER INOPERATIVE.

Part: MOTOR — INOPERATIVE (BLOWER) · airframe 2,991 hrs

VENT BLOWER INOPERATIVE.

Part: WIRE HARNESS — INTERMITTENT (ELECTRICAL) · airframe 2,951 hrs

MULTIPLE T5 SIGNAL FAULTS DURING STARTING. NO AUTOSTART AVAILABLE. HARNESS LOSES CONTINUITY AT PLUG P528 AT DECU ASSY.