AMERIFLIGHT, LLC

Operated by AMERIFLIGHT LLC (per NTSB report)

Operated by Ameriflight, LLC (per NTSB report)

Operated by Ameriflight LLC (per NTSB report)

Operated by Ameriflight, LLC (per NTSB report)

Operated by Ameriflight LLC (per NTSB report)

Operated by Ameriflight, LLC (per NTSB report)

Operated by AMERIFLIGHT INC (per NTSB report)

Operated by Ameriflight LLC. (per NTSB report)

Operated by AMERIFLIGHT LLC (per NTSB report)

Operated by Ameriflight (per NTSB report)

Operated by AMERIFLIGHT INC (per NTSB report)

Operated by Ameriflight, LLC (per NTSB report)

Operated by Ameriflight, LLC (per NTSB report)

Operated by Ameriflight, Inc. (per NTSB report)

Operated by Ameriflight, Inc. (per NTSB report)

Operated by Ameriflight LLC (per NTSB report)

THE FLIGHT CREW REPORTED THAT AS APPROACHING KMFR, WHEN LANDING GEAR DOWN WAS SELECTED DOWN THE 6 LIGHTS REMAINED RED. PILOT DID A GO AROUND AND REFERENCED THE QRH AND ELECTRIC OVERRIDE WAS USED TO EXTEND THE GEAR. ONCE ALL INDICATIONS WERE GOOD PILOT LANDED SAFELY AND TAXIED TO RAMP AND PARKED WITHOUT FURTHER INCIDENT. MAINTENANCE TROUBLESHOT THE FAILURE TO THE LANDING GEAR CONTROL MODULE. ONCE THE FAILED CONTROL MODULE WAS REPLACED ALL LANDING GEAR EXTENSION AND RETRACTION CHECKS WERE NORMAL, AND THE AIRCRAFT WAS RETURNED TO SERVICE.

DURING APPROACH, THE LANDING GEAR WAS SELECTED TO THE DOWN AND LOCKED POSITION. THE #1 MAIN LANDING GEAR ASSEMBLY DOWN AND LOCK LIGHT DID NOT ILLUMINATE, AND THE FLIGHT CREW PERFORMED A MANUAL LANDING GEAR EXTENSION. MAINTENANCE TROUBLESHOT THE FAILURE TO A FAULTY LANDING GEAR DOWN LOCK SWITCH. THE SWITCH WAS REPLACED, LANDING GEAR EXTENSION AND RETRACTION CHECKS WERE SUCCESSFUL, AND THE AIRCRAFT HAS BEEN RETURNED TO SERVICE. NO REPEAT DISCREPANCIES HAVE BEEN REPORTED.

DURING AN EVENT 6 SCHEDULED INSPECTION OF BEECHCRAFT MODEL 1900C AIRCRAFT N31703 (SERIAL NUMBER UB-10), PDX MAINTENANCE FOUND CORROSION ON THE VERTICAL STABILIZER REAR SPAR LH ANGLE THAT EXCEEDED THE REPAIR LIMITS IN TEXTRON 1900C SRM CHAPTERS 51-40-02 AND 51-40-06, REVISION D0, DATED MAY 1, 2019. AMERIFLIGHT PART 145, JIKR213F, REPLACED THE LH ANGLE WITH A NEWLY MANUFACTURED HAWKER BEECHCRAFT ANGLE EXTRUSION, PART NUMBER 101-640010-10. THE REPAIR STATION ALSO CONDUCTED A HIDDEN DAMAGE INSPECTION AND FOUND NO ADDITIONAL DAMAGE. REFERENCE WORK ORDER #0011272, DATED MAY 14, 2026.

THE LANDING GEAR DID NOT EXTEND NORMALLY WHEN SELECTED FOR LANDING BY THE FLIGHT CREW. THE LANDING GEAR WAS MANUALLY EXTENDED AND THE AIRCRAFT LANDED SAFELY. MAINTENANCE FOUND THE LANDING GEAR CONTROL RELAY WAS STUCK AND WAS ABLE TO RESET THE RELAY. MULTIPLE RETRACTION AND EXTENSION CHECKS WERE PERFORMED ON AIRCRAFT JACKS, AND THE DISCREPANCY WAS NOT DUPLICATED. THE AIRCRAFT HAS BEEN RELEASED BACK TO SERVICE, AND NO FURTHER REPORTS OF LANDING GEAR FAILURE HAS BEEN REPORTED.

ON FINAL APPROACH THE NR 2 ENGINE EXPERIENCED A FLAME OUT CONDITION AND THE PILOT WAS ABLE TO LAND THE AIRCRAFT SAFELY WITH ONLY POWER FROM THE #1 ENGINE. A GENERAL VISUAL INSPECTION OF THE FIRST STAGE COMPRESSOR SECTION REVEALED NO DAMAGE. A GENERAL VISUAL INSPECTION OF THE THIRD STAGE TURBINE WHEEL REVEALED DAMAGE. A BORESCOPE OF THE HOT SECTION ALSO REVEALED DAMAGE. A GENERAL VISUAL INSPECTION OF THE FUEL NOZZLES REVEALED NO DAMAGE OR UNUSUAL WEAR. A GENERAL VISUAL INSPECTION OF THE ENGINE INLET REVEALED NO DAMAGE. DAMAGE TO THE THIRD STAGE TURBINE WHEEL WAS LIKELY CAUSED BY DEBRIS FROM THE HOT SECTION, HOWEVER; NO DEFINITIVE CAUSE FOR THE DAMAGE IDENTIFIED IN THE HOT SECTION WAS DETERMINED.

THE FLIGHT CREW REPORTED THAT WHEN THE LANDING GEAR HANDLE WAS ACTUATED TO THE DOWN POSITION THE GEAR DID NOT EXTEND NORMALLY AND THEY RECEIVED NO GREEN SAFE LIGHTS. THE AMBER HANDLE LIGHT WAS ILLUMINATED, AND THE HYDRAULIC PUMP COULD BE HEARD RUNNING CONTINUOUSLY. THE CREW OPTED TO PULL THE EMERGENCY HANDLE AND THE GEAR EXTENDED AND LOCKED INTO THE DOWN POSITION. MAINTENANCE DETERMINED THAT THE CAUSE OF THE FAILURE WAS INTERMITTENT DUE TO THE LANDING GEAR HANDLE ASSEMBLY. THEY REPLACED THE LANDING GEAR HANDLE AND THE SEPARATION BOLTS DUE TO THE EMERGENCY EXTENSION. THE AIRCRAFT WAS CHECK FLOWN, POST MAINTENANCE, AND ALL LANDING GEAR OPERATIONS WERE REPORTED AS NORMAL.

WHILE PREPARING TO EXTEND THE LANDING GEAR, THE FLIGHT CREW NOTED THAT BOTH HYDRAULIC LOW-PRESSURE LIGHTS WERE ILLUMINATED. QRH PROCEDURES WERE FOLLOWED AND THE LANDING GEAR WAS MANUALLY ACTUATED TO THE DOWN AND LOCKED POSITION. THE LANDING WAS UNEVENTFUL AND MAINTENANCE FOUND THE HYDRAULIC LINE FROM THE FIREWALL ON THE #2 ENGINE WAS DAMAGED AND CAUSED THE HYDRAULIC FLUID PRESSURE LOSS. THE LINE WAS REPLACED AND OPERATIONAL CHECKS WERE SUCCESSFUL. THE AIRCRAFT WAS THEN RETURNED TO SERVICE.

DURING CLIMB, THE FLIGHT CREW NOTED THAT THE AIRCRAFT ROLLED TO THE LEFT AND REQUIRED FULL INPUT TO LEVEL OFF THE WINGS. THE CREW CALLED IT IN, AND AIR RETURNED WITHOUT FURTHER INCIDENT. MAINTENANCE TROUBLESHOT THE SYSTEM, CHECKED ALL FLIGHT CONTROL CABLES FOR WEAR AND PROPER TENSION AND FOUND THE ELEVATOR TRIM SLIGHTLY OUT OF THE ZERO-DEGREE SETTING. THEY THEN ADJUSTED THE TRIM PER THE MANUAL REQUIREMENTS, REPLACED THE AILERON DUE TO A PREVIOUS UNRELATED SQUAWK FOR ASSURANCE THAT IT WOULD NOT BE AN ISSUE TO OVERCOME, AND THE AIRCRAFT WAS CHECK FLOWN SUCCESSFULLY. NO REPEAT DISCREPANCIES HAVE BEEN NOTED, AND THE AIRCRAFT WAS RETURNED TO SERVICE.

DURING FLIGHT AFTER SHORTY AFTER LEVEL OFF, THE FLIGHT CREW EXPERIENCE A LOW HYDRAULIC PRESSURE MALFUNCTION AND AIR RETURNED BACK TO BASE. THE EMERGENCY LANDING GEAR HANDLE WAS MANUALLY ACTUATED DUE TO THE FAILURE AND THE AIRCRAFT LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE INSPECTED THE HYDRAULIC SYSTEM AND FOUND THAT A HYDRAULIC LINE CHAFFED AGAINST A FRAME PIECE CAUSING A SMALL LEAK IN THE SYSTEM. THE LINE WAS REPLACED, THE SYSTEM WAS SERVICED, AND THE LANDING GEAR WAS CYCLED ON AIRCRAFT JACKS TO VERIFY PROPER OPERATION POST REPAIR. ALL SYSTEM FUNCTIONS WERE NORMAL, AND THE AIRCRAFT HAS BEEN RETURNED TO SERVICE.

DURING TAXI ON TAXIWAY HEADING TO THE ACTIVE RUNWAY, THE FLIGHT CREW NOTED LOW BRAKE PRESSURE AND OPTED TO SHUT DOWN THE AIRCRAFT IN PLACE TO PREVENT LOSS OF CONTROL. BURBANK MAINTENANCE INSPECTED THE BRAKE SYSTEM AND FOUND NO EVIDENCE OF LEAKING FLUID OR OTHER CAUSES OF FAILURE. THE BRAKE SYSTEM WAS BLED AND OPERATIONALLY CHECKED OK BEFORE RETURNING THE AIRCRAFT TO SERVICE. SUSPECT TRAPPED AIR FROM PREVIOUS MAINTENANCE ACTIVITIES SEVERAL DAYS PRIOR.

PILOT REPORTED THAT ON FINAL APPROACH HE SELECTED GEAR DOWN AND NOTHING HAPPENED. PILOT CYCLED LANDING GEAR SELECTOR SEVERAL TIMES BEFORE RECEIVING A HYDRAULIC LOW WARNING ANNUNCIATOR. PILOT PULLED THE CIRCUIT BREAKER MANUALLY EXTENDED THE LANDING GEAR THEN LANDED SAFELY. MAINTENANCE TESTED AND FOUND THE LANDING GEAR MOTOR AND RELAY INOPERATIVE. BOTH COMPONENTS WERE REPLACED AND APPROVED AIRCRAFT FOR RETURN TO SERVICE. NO FURTHER SYSTEM FAILURES NOTED ON SUBSEQUENT FLIGHTS.

THE FLIGHT CREW REPORTED THAT WHEN THE LANDING GEAR HANDLE WAS SELECTED TO THE DOWN POSITION THE LANDING GEAR RELAY CIRCUIT BREAKER POPPED OPEN AND WOULD NOT RESET. A MANUAL GEAR EXTENSION WAS PERFORMED IN ACCORDANCE WITH EMERGENCY PROCEDURES AND THE AIRCRAFT LANDED WITHOUT FURTHER ISSUES. MAINTENANCE TROUBLESHOT THE SYSTEM AND FOUND THAT THE LANDING GEAR MOTOR WAS THE CAUSE OF FAILURE, AND IT WAS REPLACED. POST MAINTENANCE OPERATIONAL CHECKS WERE SATISFACTORY, AND THE AIRCRAFT HAS BEEN RETURNED TO SERVICE.

THE FLIGHT CREW SELECTED THE LANDING GEAR TO THE DOWN AND LOCKED POSITION; THE RH MAIN LANDING GEAR DID NOT INDICATE THAT IT WAS SAFELY DOWN AND LOCKED ONCE IN POSITION. THE CAPTAIN PERFORMED AN EMERGENCY LANDING GEAR MANUAL EXTENSION TO ENSURE THAT THE POSITION OF THE GEAR WAS SAFE AND LANDED THE AIRCRAFT WITHOUT FURTHER INCIDENT. EL PASO MAINTENANCE FOUND THAT THE STOP FOR THE BELLCRANK WAS BROKEN AND THAT ALLOWED THE BELLCRANK TO SLIP FROM ITS NORMAL POSITION CAUSING A FALSE UNSAFE INDICATION IN THE COCKPIT. THE PART HAS BEEN ORDERED AND WILL BE REPLACED ONCE MAINTENANCE RECEIVES IT INTO STOCK.

AT FL170 CRUISE ALTITUDE BOTH THE #1 AND #2 HYDRAULIC PRESSURE ANNUNCIATOR LIGHTS AS WELL AS THE HYDRAULIC PRESSURE GAUGE BEGAN READING LOW. ONCE THE LANDING GEAR LEVER WAS SELECTED TO THE DOWN POSITION THE GEAR WOULD NOT EXTEND NORMALLY, AND AN EMERGENCY LANDING GEAR EXTENSION PROCEDURE WAS PERFORMED. MAINTENANCE FOUND A HARD LINE TO THE HYDRAULIC MANIFOLD WAS CRACKED AND CAUSED THE HYDRAULIC FLUID TO LEAK OUT FROM THE SYSTEM, RENDERING THE LANDING GEAR INOPERATIVE WHEN SELECTED TO THE DOWN POSITION. THE LINE IS IN THE PROCESS OF BEING REPLACED AND LEAK / FUNCTIONAL CHECKS WILL BE PERFORMED PRIOR TO RELEASE TO SERVICE.

THE FLIGHT CREW REPORTED THAT THE LANDING GEAR FAILED TO RETRACT PROPERLY ON TAKEOFF. THIS WAS A TRAINING FLIGHT, AND THE ABNORMAL CHECKLIST WAS PERFORMED TO INCLUDE A MANUAL LANDING GEAR EXTENSION PROCEDURE. THE TOWER REPORTED VIA VISUAL CONFIRMATION THAT THE FAILURE WAS TO THE NOSE AND LEFT LANDING GEAR ASSEMBLIES NOT RETRACTING AND STOWING PROPERLY. MAINTENANCE IS STILL IN THE PROCESS OF CONFIRMING AND TROUBLESHOOTING THE REPORTED DISCREPANCY AT THIS TIME.

THE FLIGHT CREW SELECTED THE LANDING GEAR HANDLE TO THE DOWN POSITION AND THE LANDING GEAR FAILED TO INDICATE THE LANDING GEAR AS DOWN AND LOCKED. A SECOND ATTEMPT TO CYCLE THE LANDING GEAR CAUSED THE LANDING GEAR RELAY CIRCUIT BREAKER TO DISENGAGE SO THE PILOT DECLARED AN EMERGENCY LANDING AND MANUALLY EXTENDED THE LANDING GEAR. MAINTENANCE TROUBLESHOT THE SYSTEM AND COULD NOT DUPLICATE THE FAILURE THROUGH SEVERAL RETRACTION AND EXTENSION CHECKS ON JACKS. TROUBLESHOOTING IS STILL IN PROGRESS TO DETERMINE THE CAUSE OF FAILURE, IF ANY, AND SUBSEQUENT CORRECTIVE ACTIONS REQUIRED.

DURING FINAL APPROACH THE FLIGHT CREW ATTEMPTED TO LOWER THE LANDING GEAR NORMALLY, HOWEVER, THE RH MAIN GEAR LANDING SAFE LIGHT DID NOT ILLUMINATE. MAINTENANCE TROUBLESHOT THE SYSTEM AND FOUND A BROKEN WIRE TO THE LANDING GEAR POSITION INDICATOR LIGHTS WAS BROKEN. THE WIRE WAS REPAIRED, AN OPERATIONAL CHECK FLIGHT WAS FLOWN SUCCESSFULLY, AND THE AIRCRAFT WAS RETURNED TO SERVICE.

DURING A 4YR HEAVY SCHEDULED INSPECTION AT WORLDWIDE AIRCRAFT SERVICES CORROSION BEYOND ALLOWABLE LIMITS WAS DISCOVERED ALONG THE UPPER RH FUSELAGE LAP SEAM BETWEEN FS 450 - FS 570. REPAIRS TO THE DAMAGED AREA WILL BE MADE IN REFERENCE TO SAAB STATEMENT TO OPERATOR DATED 2025-04-22, DOCUMENT ID: 340SDS09872. FOR A DETAILED DESCRIPTION OF THE WORK PERFORMED REFERENCE TO WORLDWIDE AIRCRAFT SERVICES WORK ORDER: 15761.

THE FLIGHT CREW EXPERIENCED THE LANDING GEAR WARNING HORN AUDIBLE SOUNDING IN FLIGHT WITH THE THREE GREEN DOWN AND SAFE LIGHTS ILLUMINATED WHEN THE LANDING GEAR WAS SELECTED TO DOWN. MAINTENANCE FOUND THAT THE OVERHEAD PANEL WAS GROUNDING OUT TO THE COVER OF THE SWITCH CAUSING THE HORN TO SOUND IN FLIGHT. THE WIRING WAS REPAIRED AND THE AIRCRAFT HAS BEEN RETURNED TO SERVICE WITHOUT FURTHER INCIDENT.

THE FLIGHT CREW PERFORMED AN EMERGENCY LANDING GEAR EXTENSION. WHEN ATTEMPTING TO EXTEND THE LANDING GEAR THE LANDING GEAR HANDLE WAS UN-RESPONSIVE. MAINTENANCE FOUND AND REPAIRED A BROKEN WIRE TO THE LANDING GEAR HYDRAULIC POWER PACK PRESSURE SWITCH AND OPERATIONAL CHECKS ON JACKS WERE SUCCESSFUL. THE AIRCRAFT HAS BEEN RETURNED TO SERVICE.

THE FLIGHT CREW NOTED THAT AFTER CLIMB OUT, THE LANDING GEAR RED IN TRANSIT LIGHT REMAINED ILLUMINATED. HE LEVELED OFF AND CYCLED THE LANDING GEAR TO THE DOWN AND LOCKED POSITION AND VERIFIED THAT THE THREE GREEN DOWN AND LOCKED SAFE LIGHTS ILLUMINATED. THE TOWER NOTIFIED THE CAPTAIN THAT HE DID NOT HAVE THREE LANDING GEAR DOWN AND LOCKED SO HE CLIMBED TO A HIGHER ALTITUDE IN ORDER TO PERFORM A MANUAL EMERGENCY LANDING GEAR EXTENSION. ATC VERIFIED VISUALLY THAT HE NOW HAD THREE LANDING GEAR SAFELY DOWN AND LOCKED. THE AIRCRAFT LANDED WITHOUT FURTHER INCIDENT AND MAINTENANCE IS CURRENTLY TROUBLESHOOTING THE FAILURE.

DURING LANDING, THE NOSE LIGHT DOWN AND LOCKED SAFE INDICATION FAILED TO ILLUMINATE. THE FLIGHT CREW FOLLOWED EMERGENCY EXTENSION PROCEDURES AND LANDED THE AIRCRAFT SAFELY. MAINTENANCE FOUND A PIN ON THE LANDING GEAR EXTENSION HANDLE ASSEMBLY RECESSED AS WAS ABLE TO RESET THE PIN INTO THE CORRECT POSITION. EXTENSION AND RETRACTION CHECKS ON AIRCRAFT JACKS WERE ALL SUCCESSFUL AFTER THE REPAIR WAS MADE AND THE AIRCRAFT HAS BEEN RETURNED TO SERVICE.

DURING CLIMB, SMOKE AND SPARKS/FLAMES WERE NOTED IN THE AREA BEHIND THE FUEL GAUGE AND CIRCUIT BREAKER PANEL. THE FLIGHT CREW DECLARED AN EMERGENCY LANDING AND LANDED THE AIRCRAFT SAFELY IN LANSING, MI. MAINTENANCE INSPECTED THE AREA AND DETERMINED THAT DEICING FLUID CONTACTED THE BACK OF THE LIGHTING PANEL CAUSING IT TO SHORT CIRCUIT WHEN POWERED ON. THE CREW HATCH AND WINDOW WERE CHECKED FOR POSSIBLE LEAKS AND NONE WERE NOTED. IT IS BELIEVED THAT OVERUSE OF DEICING FLUID APPLIED DIRECTLY TO THE STORM WINDOW AREA IS THE CAUSE OF THE INTRUSION. THE LIGHTING PANEL WAS DISABLED ONCE MAINTENANCE DETERMINED THAT THERE WERE NO OTHER CONTRIBUTING FACTORS, AND THE LIGHTING IS ACTIVELY DEFERRED. REFERENCE MEL 33-01-00. THE NTSB HAS BEEN NOTIFIED OF THE INCIDENT.

THE #2 BRAKE PEDAL LOST ALL PRESSURE DURING TAXI FOR DEPARTURE. DURING THE PRE-FLIGHT BRAKE CHECK AND THE ENGINE PERFORMANCE CHECKS THE BRAKES HELD PRESSURE NORMALLY. MAINTENANCE INSPECTED THE CAUSE OF THE FAILURE AND FOUND A LOOSE FITTING AND LOSS OF HYDRAULIC FLUID BETWEEN THE FLEXIBLE BRAKE LINE FROM THE BRAKE ASSEMBLY TO THE HARD LINE ROUTED TO THE AIRFRAME FROM THE MASTER CYLINDER. THE FITTING WAS TORQUED TO PROPER SPECIFICATION PER THE BEECHCRAFT AMM, THE BRAKE SYSTEM BLED TO REMOVE AIR FROM THE SYSTEM, AND THE RESERVOIR SERVICED TO THE FULL LIMIT. A FUNCTIONAL CHECK OF THE BRAKE SYSTEM WAS SUCCESSFUL, AND NO FLUID LOSS WAS NOTED. THE AIRCRAFT HAS BEEN RETURNED TO SERVICE WITH NO OTHER REPORTED DISCREPANCIES.

THE LANDING GEAR DID NOT EXTEND NORMALLY WHEN SELECTED. THE PILOT ACTUATED THE EMERGENCY LANDING GEAR HANDLE AND WAS ABLE TO MANUALLY EXTEND THE LANDING GEAR FOR A SAFE LANDING. MAINTENANCE WAS NOT ABLE TO DUPLICATE THE FAILURE AND REPLACED THE CIRCUIT BREAKER AS A PRECAUTIONARY MEASURE. IT WAS LATER DETERMINED THAT A WIRE BECAME DISCONNECTED AND CAUSED THE FAILURE IN FLIGHT. THE WIRE WAS REPAIRED, AND THE AIRCRAFT HAS BEEN RETURNED TO SERVICE.

DURING APPROACH LANDING GEAR WAS SELECTED TO THE DOWN POSITION BUT ONLY 2 GREEN LIGHTS ILLUMINATED. PILOT DETERMINED BULBS FOR ONE GEAR INDICATOR WERE INOP BUT WAS UNABLE TO SWAP. MAINTENANCE REPLACED BULBS AND OPS CHECK GOOD. NO FURTHER REPEATS.

ABORTED TAKE-OFF DUE TO LOSS OF LH BRAKE PRESSURE. AIRCRAFT RETURNED TO BLOCK WITHOUT INCIDENT. MAINTENANCE DETERMINED HYDRAULIC RESERVOIR FLUID LEVELS WERE LOW AND SERVICED ACCORDINGLY. OPS CHECK GOOD AND NO REPEATS OF DEFECT.

CENTER ELEVATOR HINGE ASSEMBLY P/N 101-620013-1 FOUND WITH EXCESSIVE CORROSION / MISSING MATERIAL CREATING A 1.5 X 0.5 INCH HOLE. OUTBOARD ELEVATOR HINGE ASSEMBLY P/N 101-620011-1 ALSO FOUND WITH EXCESSIVE CORROSION / MISSING MATERIAL.

DURING CRUISE FLIGHT WITH THE AUTO PILOT ACTIVE THE FLIGHT CREW NOTICED THE #1 FUEL FLOW GAUGE WAS NOT WORKING. AFTER PERFORMING SEVERAL CHECKS RELATED TO THE INDICATOR, HE VISUALLY CHECKED THE LEFT WING AND NOTICED FUEL FLOWING OUT OF THE ENGINE NACELLE. HE NOTIFIED ATC AND PERFORMED AN IN-FLIGHT SHUTDOWN OF THE AFFECTED ENGINE FOLLOWED BY AN EMERGENCY LANDING. THE AIRCRAFT LANDED SAFELY WITHOUT FURTHER INCIDENT. MAINTENANCE FOUND THAT THE O-RING FOR THE FUEL LINE TO THE FUEL/ OIL HEATER HAD DETERIORATED AND FAILED IN FLIGHT. THEY REPLACED THE FAULTY PACKING AND PERFORMED MULTIPLE LEAK CHECKS TO INCLUDE ENGINE POWER ON. NO OTHER DEFECTS WERE NOTED, AND THE AIRCRAFT WAS RETURNED TO SERVICE.

THE FLIGHT CREW REPORTED THAT THE LANDING GEAR DOWN AND LOCKED GREEN INDICATION LIGHT DID NOT ILLUMINATE WHEN THE GEAR WAS SELECTED TO THE DOWN POSITION. OUT OF PRECAUTION, THE CREW DECIDED TO REPORT TO ATC THE DISCREPANT ITEM AND OPTED TO MANUALLY EXTEND THE LANDING GEAR BY ACTUATING THE EMERGENCY LANDING GEAR HANDLE. THE AIRCRAFT LANDED SAFELY AND WAS FERRIED TO DFW FOR THE REPAIR. DFW MAINTENANCE INSPECTED THE LANDING GEAR SYSTEM AND FOUND THAT THE MOLEX CONNECTOR TO THE INDICATOR HAD A BROKEN WIRE CONNECTION. THE WIRE WAS REPAIRED, AND MAINTENANCE PERFORMED TEN EXTENSION AND RETRACTION CHECKS ON AIRCRAFT JACKS. ALL LANDING GEAR SWINGS WERE SUCCESSFUL. THE PILOT SQUAWK WAS CLOSED OUT AND MAINTENANCE IS WORKING OTHER SCHEDULED ITEMS AT THIS TIME.

DURING LANDING, THE FLIGHT CREW ATTEMPTED TO LOWER THE GEAR NORMALLY. IT WAS OBSERVED THAT THERE WAS A LOW HYDRAULIC LIGHT FLICKER INDICATING A LOSS OF PRESSURE. THE FLIGHT CREW THEN EXTENDED THE LANDING GEAR THROUGH MANUAL EXTENSION AND LANDED THE AIRCRAFT SAFELY. MAINTENANCE FOUND TWO CHAFFED HYDRAULIC LINES THAT SUPPLY PRESSURE TO LOWER THE LANDING GEAR. THE HYDRAULIC LINES WERE REPAIRED AND INSPECTED FOR POTENTIAL RUBBING THAT COULD POTENTIALLY CAUSE A FUTURE LOSS OF HYDRAULIC PRESSURE. NO FURTHER DEFECTS WERE NOTED.

THE #2 LANDING GEAR CIRCUIT BREAKER POPPED IN FLIGHT. IT WAS RESET, HOWEVER, FAILED ON THE SECOND ATTEMPT. THE LANDING GEAR WAS MANUALLY EXTENDED, AND THE AIRCRAFT LANDED SAFELY. MAINTENANCE FOUND THAT THE LANDING GEAR WARNING HORN FAILED, AND IT WAS REPLACED. THEY ALSO FOUND THAT THE LANDING GEAR HANDLE ASSEMBLY WAS THE CAUSE OF THE ELECTRICAL SHORT. THE HANDLE WAS REPLACED, AND GEAR SWINGS WERE SUCCESSFULLY PERFORMED. THE AIRCRAFT IS NOW RELEASED BACK TO SERVICE. NO OTHER DEFECTS HAVE BEEN REPORTED.

DURING FINAL APPROACH THE FLIGHT CREW SELECTED THE GEAR HANDLE TO THE DOWN POSITION, THEY RECEIVED THE THREE GREEN SAFE INDICATION LIGHTS ON THE ANNUNCIATOR PANEL, HOWEVER, THE LIGHTING PANEL WAS INTERMITTENTLY DISPLAYED. TO ENSURE A SAFE LANDING THE CREW OPTED TO MANUALLY PUMP THE LANDING GEAR TO THE DOWN POSITION. MAINTENANCE FOUND THAT THE LANDING GEAR OPERATED NORMALLY BUT THE ANNUNCIATOR PANEL BACKLIGHTING WAS INTERMITTENT. THE ANNUNCIATOR PANEL WAS REPLACED WITH A SERVICEABLE PART AND THE DISCREPANCY CLEARED IN THE AIRCRAFT LOGBOOK. N991AF IS SCHEDULED TO PERFORM AN OPERATIONAL CHECK FLIGHT FOR AN UNRELATED DISCREPANCY SO AN IN-FLIGHT OPERATIONAL CHECK OF THE LANDING GEAR IS INCLUDED IN THE ACTIONS TO BE PERFORMED. THE OPERATIONAL CHECK FLIGHT IS SCHEDULED AT THIS TIME BUT HAS NOT YET FLOWN.

WHEN THE FLIGHT CREW PLACED THE LANDING GEAR HANDLE IN THE DOWN POSITION THE CIRCUIT BREAKER POPPED AND CAUSED THE LANDING GEAR INDICATION LIGHTS TO COMPLETELY EXTINGUISH. THE PILOT RESET THE CIRCUIT BREAKER AND CYCLED THE LANDING GEAR HANDLE ONCE MORE, BUT THE RESULT WAS THE SAME. HE THEN RAN HIS EMERGENCY LANDING CHECKLIST, MANUALLY ACTUATED THE LANDING GEAR TO THE DOWN AND LOCKED POSITION AND LANDED WITHOUT INCIDENT. DURING TROUBLESHOOTING, THE MAINTENANCE TEAM FOUND THAT A WIRE TO THE #1 MAIN LANDING GEAR UPLOCK SWITCH WAS DAMAGED, CAUSING IT TO SHORT THE CIRCUIT WHEN POWER WAS APPLIED. THE WIRE WAS REPAIRED, MAINTENANCE THEN ADJUSTED THE ROUTING OF THE WIRING SO THAT WHEN THE GEAR WAS STOWED IT WOULD BE CLEAR OF THE GEAR. MULTIPLE GEAR SWINGS WERE PERFORMED ON AIRCRAFT JACKS WITH SUCCESS. NO OTHER DEFECTS WERE NOTED, AND THE AIRCRAFT HAS BEEN RETURNED TO SERVICE WITHOUT A REPEAT OF THE DISCREPANCY.

ON FINAL APPROACH, THE LANDING GEAR FAILED TO EXTEND WHEN THE HANDLE WAS PLACED INTO THE GEAR DOWN POSITION. MAINTENANCE INSPECTED THE LANDING GEAR POWER PACK SERVICING VALVE FOR PROPER PLACEMENT AND NOTED NO DEFECT. THE LANDING GEAR CONTROL CIRCUIT BREAKER WAS THEN CYCLED TO ENSURE GOOD CONTACT. MULTIPLE GEAR EXTENSION AND RETRACTION CHECKS WERE PERFORMED SUCCESSFULLY BEFORE RETURNING THE AIRCRAFT TO SERVICE. THERE HAVE BEEN NO FURTHER LANDING GEAR DISCREPANCIES REPORTED TO DATE.

AT CRUISE ALTITUDE EN ROUTE TO PDX, THE #1 ENGINE FIRE WARNING ILLUMINATED AND REMAINED ON. THE FLIGHT CREW PERFORMED AN IN FLIGHT ENGINE SHUTDOWN AND CALLED IN FOR AN EMERGENCY LANDING. THE AIRCRAFT ARRIVED TO PDX WITHOUT FURTHER ISSUES. MAINTENANCE INSPECTED THE AIRCRAFT ONCE IT WAS RELEASED FROM ARFF AND DETERMINED THAT THE FIRE WARNING INDICATION WAS FALSE AND THAT A DIRTY FIRE DETECTOR WAS THE CAUSE OF THE INDICATION AT CRUISE ALTITUDE. THE MAINTENANCE CREW INSPECTED ALL WIRING AND DETECTORS AND DETERMINED THAT NO OTHER DEFECTS WERE PRESENT. THE FIRE DETECTION SYSTEM WAS OPERATIONALLY CHECKED SUCCESSFULLY BEFORE THE AIRCRAFT WAS RETURNED TO SERVICE.

DURING APPROACH, THE LANDING GEAR FAILED TO EXTEND FULLY INTO THE DOWN AND LOCKED POSITION. THE FLIGHT CREW PERFORMED A MANUAL GEAR EXTENSION IN ORDER TO ACHIEVE THE DOWN AND LOCKED POSITION. MAINTENANCE DISCOVERED THAT THE LANDING GEAR SQUAT SWITCH WAS JAMMED DUE TO SLUDGE PICKED UP DURING FLIGHT. THE MAINTENANCE TEAM CLEANED AND TESTED THE SWITCH, PERFORMED MULTIPLE GEAR RETRACTION AND EXTENSION CHECKS, AND RETURNED THE AIRCRAFT TO SERVICE WITHOUT FURTHER INCIDENT.

AFTER TAKEOFF, THE LANDING GEAR IN TRANSIT LIGHT REMAINED ILLUMINATED. THE FLIGHT CREW PERFORMED AN AIR TURNBACK AND LANDED WITHOUT INCIDENT. DFW MAINTENANCE PERFORMED THE LANDING GEAR SHUTTLE VALVE TEST AND FOUND THAT #1 AND #2 SHUTTLE VALVES FAILED THE LEAK TEST. MAINTENANCE REPLACED BOTH OF THE FAILED ACTUATORS AND PERFORMED SUCCESSFUL GEAR RETRACTION AND EXTENSION CHECKS WHILE THE AIRCRAFT WAS ON JACKS. NO DEFECTS WERE NOTED AFTER THE MLG ACTUATORS WERE REPLACED AND THE AIRCRAFT HAS BEEN RETURNED TO SERVICE.

ON APPROACH TO KLAN, THE PILOT REPORTED THAT HE SELECTED THE LANDING GEAR HANDLE TO THE DOWN POSITION, BUT THE LANDING GEAR FAILED TO EXTEND. HE THEN RESET THE LANDING GEAR RELAY CIRCUIT BREAKER AND THE GEAR CAME DOWN NORMALLY. LAN MAINTENANCE REMOVED AND REPLACED THE LANDING GEAR POWER RELAY AND THE LANDING GEAR TIME DELAY RELAY. SEVERAL GEAR EXTENSION AND RETRACTION CHECKS WERE PERFORMED WITH SUCCESS AND THE AIRCRAFT WAS RETURNED TO SERVICE.

DURING APPROACH INTO KPLN, THE FLIGHT CREW HAD TO MANUALLY EXTEND THE LANDING GEAR. LAN MAINTENANCE INSPECTED THE LANDING GEAR RELAY AND WEIGHT ON WHEELS SWITCH/ WIRING AND COULD NOT DUPLICATE THE FAILURE. MAINTENANCE SERVICED THE MANUAL EXTENSION RESERVOIR AND RETURNED THE AIRCRAFT TO SERVICE AFTER MULTIPLE SUCCESSFUL GEAR EXTENSION AND RETRACTION OPERATIONAL CHECKS.

DURING TAKEOFF, THE LANDING GEAR CIRCUIT BREAKER TRIPPED WHEN THE FLIGHT CREW ATTEMPTED TO STOW THE LANDING GEAR. MAINTENANCE PERFORMED THREE SUCCESSFUL LANDING GEAR SWINGS, CONDUCTED AN INSPECTION ON ALL ASSOCIATED WIRING, CHECKED THE SERVICING VALVE AND MICROSWITCH, AND THE E235 SENSOR CHECKED OK. MAINTENANCE THEN PERFORMED ANOTHER SIX-LANDING GEAR EXTENSION AND RETRACTION FUNCTIONAL CHECKS. ALL CHECKS WERE SUCCESSFUL. NO DEFECTS WERE DISCOVERED DURING THE TROUBLESHOOTING PROCESS.

PILOT REPORTED THAT HE HAD NO RIGHT-HAND RUDDER CONTROL ON APPROACH. THE LEFT-HAND RUDDER AND RUDDER TRIM WERE NORMAL. MAINTENANCE FOUND A SEPARATED FLIGHT CONTROL CABLE AND IS IN THE PROCESS OF REPLACING IT. BEFORE RETURNING THE AIRCRAFT TO SERVICE.

THE LANDING GEAR CIRCUIT BREAKER TRIPPED WHILE EN ROUTE TO KGEG. THE PILOT PERFORMED EMERGENCY GEAR DOWN PROCEDURES AND LANDED WITHOUT INCIDENT. MAINTENANCE FOUND TWO WIRES DAMAGED, G19H22 AND D41A22. WIRE REPAIRS WERE MADE AND FUNCTIONAL CHECKS OF THE LANDING GEAR WERE PERFORMED ON AIRCRAFT JACKS. ALL CHECKS WERE SUCCESSFUL AFTER THE REPAIR AND THE AIRCRAFT HAS BEEN RETURNED TO SERVICE.

PILOT REPORTED THAT ON LANDING, THE GEAR DOWN SELECTION FAILED WHEN ACTUATED. HE THEN EXERCISED THE EMERGENCY LANDING GEAR HANDLE AND LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE REPLACED THE HYDRAULIC RESERVOIR CAP AND SEAL AND THE LANDING GEAR MOTOR. THE AIRCRAFT PERFORMED A SUCCESSFUL OPERATIONAL CHECK FLIGHT BEFORE IT WAS RETURNED TO SERVICE.

PIC REPORTED THE LANDING GEAR WOULD NOT EXTEND ON APPROACH TO KESC. EMERGENCY PROCEDURES WERE FOLLOWED, AND THE AIRCRAFT LANDED SAFELY. MAINTENANCE FOUND THE LANDING GEAR HYDRAULIC SYSTEM LOW ON FLUID. THE HYDRAULIC SYSTEM WAS SERVICED IAW C99 MM 32-31-00. NO OTHER DEFECTS OR LEAKS WERE NOTED. MAINTENANCE PERFORMED EXTENSION AND RETRACTION CHECKS WITH SUCCESS; THE AIRCRAFT WAS RETURNED TO SERVICE.

DURING LANDING, THE PILOT SELECTED THE LANDING GEAR HANDLE DOWN AND THE RED UNSAFE LIGHT IN THE HANDLE REMAINED ILLUMINATED. A MANUAL GEAR EXTENSION WAS PERFORMED, AND THE AIRCRAFT LANDED SAFELY. MAINTENANCE FOUND A DEFECTIVE DOWNLOCK SWITCH. IT WAS REMOVED AND REPLACED, MULTIPLE GEAR EXTENSION AND RETRACTION CHECKS WERE PERFORMED SUCCESSFULLY, AND THE AIRCRAFT HAS BEEN RETURNED TO SERVICE WITH NO FURTHER ISSUES.

AFTER TAKEOFF THE LANDING GEAR BECAME STUCK IN THE TRANSIT POSITION. THE PILOT PERFORMED A MANUAL LANDING GEAR EXTENSION AND LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE TROUBLESHOT THE SYSTEM AND FOUND THAT THERE WAS AN ELECTRICAL SHORT FROM THE TIME DELAY CARD TO THE SERVICING VALVE. THE WIRE WAS REPAIRED, MULTIPLE GEAR SWINGS WERE PERFORMED SUCCESSFULLY, AND NO FURTHER DISCREPANCIES WERE NOTED AFTER THE REPAIR TO THE AFFECTED WIRE.

DURING APPROACH TO KSJU, THE FLIGHT CREW REPORTED LEFT ENGINE TORQUE DROP AND SLIGHT YAW TO THE LEFT. PILOT SHUTDOWN LH ENGINE IAW QRH. AN EMERGENCY WAS DECLARED, AND THE AIRCRAFT LANDED IN KSJU WITHOUT INCIDENT. MAINTENANCE INSPECTED ENGINE COMPRESSOR BLADES, POWER TURBINE BLADES AND WERE ALL FOUND OK. NO DEBRIS FOUND IN ENGINE OIL OR OIL FILTER. MAINTENANCE ALSO PERFORMED ENGINE RUN AND ENGINE TEMPERATURE WAS WITHIN LIMITS. ENGINE REACHED TAKEOFF TORQUE BUT NOTED ACCELERATION WAS LAGGING IN ALL PHASES. PROCEEDED TO BORESCOPE ENGINE AND FOUND STATOR HOUSE WAS DAMAGED. A NEW HOT SECTION WAS RECEIVED ON 08/11/2023 AND INSTALLED. GROUND PERFORMANCE RUNS COMPLETED AND FOUND SATISFACTORY.

AFTER DEPARTING KBIH, NLG WOULD NOT RETRACT. EXTENDED GEAR TO LAND BACK AT KBIH, ONLY THE NOSE GEAR INDICATED DOWN AND LOCKED. THE LEFT AND RIGHT MAIN LANDING GEAR INDICATORS WERE NOT ILLUMINATED. THE FLIGHT CREW HAD THE TOWER VERIFY GEAR WAS DOWN. UPON LANDING, RH MAIN LANDING GEAR COLLAPSED. MAINTENANCE SWUNG GEAR AND FOUND NO ISSUES DURING THESE CHECKS. AIRCRAFT HAD BEEN HELD BY NTSB FOR FURTHER INVESTIGATION. ALTHOUGH AIRCRAFT HAS BEEN RELEASED, NO FURTHER MAINTENANCE HAS BEEN PERFORMED OR PARTS ORDERED DUE TO THE LOCATION OF THE AIRCRAFT IS STILL IN KBIH. NO PARTS HAVE BEEN CHANGED AT THIS TIME AND NO PART WAS DETERMINED TO HAVE CAUSED THE GEAR COLLAPSE.

PILOT REPORTED AFTER DEPARTURE FROM BQN DURING CLIMB OUT AT APPROX 11,000FT THE LEFT ENGINE TORQUE DROPPED TO 0, ENGINE OIL PRESSURE DROPPED TO 0 SUBSEQUENTLY ENGINE SHUTDOWN. AIRCRAFT RETURNED TO BQN AND LANDED WITHOUT INCIDENT. BQN MX ATTEMPTED TO MOTOR ENGINE, STARTER ROTATED, ENGINE DID NOT ROTATE. INSPECTED THE LEFT ENGINE AND FOUND TURBOMACHINERY CHIP DETECTOR LIGHT ILLUMINATED FOR #1 ENGINE. REDUCTION GEARBOX CHIP DETECTOR LIGHT WAS NOT ILLUMINATED. REMOVED TURBOMACHINERY CHIP DETECTOR FOUND FERROUS METAL ON CHIP DETECTOR. INSPECTED TURBOMACHINERY OIL FILTER AND FOUND FERROUS METAL IN FILTER. ENGINE WILL BE REPLACED.