INTERJET WEST, INC.

PILOT WRITE-UP; "IN CRUISE "CABIN ALTITUDE" LIGHT ILLUMINATED." AFTER THE FLIGHT CREW NOTED THIS ISSUE, THEY CONTACTED ATC, DECLARED AN EMERGENCY, AND ACCOMPLISHED AN ATB TO KELP FROM WHICH THEY DEPARTED. THE CREW ALSO WROTE UP THAT ON THE BLEED OFF TAKE-OFF, A RT BLEED TRIP LIGHT ILLUMINATED. MX WAS FLOWN INTO KELP FROM KTOL (WHERE OUR MAIN MX BASE IS LOCATED) TO FIX THE ISSUE. THE RIGHT RT ENGINE HIGH STAGE BLEED VALVE WAS FOUND TO BE STUCK PARTIALLY OPEN AND WAS REPLACED IAW THE AMM. THIS STUCK VALVE WAS THE SOURCE OF THE BLEED TRIP LIGHT DUE TO THE 180 PSI SWITCH IN THE BLEED AIR REGULATOR BEING ACTUATED BY THE 9TH STAGE AIR AT T.O. POWER. THE PRESSURIZATION SYSTEM WAS INSPECTED PER THE AMM WITH NO DEFECTS NOTED. DUE TO THE FULL FUEL LOAD, AN OVERWEIGHT LANDING INSPECTION WAS ALSO ACCOMPLISHED IAW THE AMM. THE PIC DEEMED THE LANDING WAS NOT A "HARD LANDING" SO THE AMM WAS FOLLOWED DURING THE OVERWEIGHT LANDING INSPECTION.

ON 3/2/2019, DEPARTED, APROX 3 MINUTES AFTER TO, THE CREW GOT A NR 1 ENGINE FIRE INDICATION IN THE COCKPIT. THE CREW REDUCED THE POWER SETTING TO IDLE AND THE FIRE INDICATION WENT AWAY. THEY RETURNED TO KMFE SAFELY. AFTER TROUBLESHOOTING BY IJW MECHANICS, IT WAS DETERMINED THAT NO FIRE HAD OCCURRED BUT THAT A BLEED AIR LEAK HAD BLOWN AIR ONTO THE FIRE LOOP AND CAUSED THE FIRE WARNING TO GO OFF.

AFTER TAKEOFF AND DURING CLIMBOUT FROM KMFE, THE FLIGHT CREW EXPERIENCED A NR 1 ENGINE FIRE WARNING. THEY PULLED THE THROTTLE BACK TO IDLE AND THE WARNING WENT OUT. THEY DUMPED APPROX 5,000 OF FUEL AND LANDED SAFELY BACK AT KMFE. TROUBLESHOOTING ON 3/3/2019 REVEALED THAT A BLEED AIR LEAK CAUSED THIS FIRE WARNING AND NOT AN ACTUAL FIRE EVENT.

DURING CLIMB OUT OF KELP, #1 ENGINE FIRE WARNING WENT OFF WITH A SPIKE IN OIL TEMP AND PRESSURE. THE A/C DID AN AIR TURN-BACK AND LANDED SAFELY BACK IN KELP. TO DATE, THERE'S NO CLEAR FAULT FOR WHAT CAUSED THE PROBLEM AND THE AIRCRAFT REMAINS IN KELP.

DURING A ROUTINE SERVICE CHECK, IJW MX FOUND FOD DAMAGE TO THE #1 ENGINE FAN.

LOWER RUDDER LT SIDE HAS A SPOT OF CORROSION 2.5" IN LENGHT.

RIGHT WING FIXED T/E STA WBL 92.8 STIFFENER LOWER END IS COORODED.

DURING A RECENT FLIGHT, AT A POINT APPROXIMATELY 100 NM SW OF DESTINATION AND AT AN ALTITUDE OF 28,000 FT, THE NR 2 ENGINE OIL FILTER BYPASS LIGHT ILLUMINATED. THE CREW REDUCED THRUST TO ABOUT 70 PERCENT N1 AND THE LIGHT BENT OUT. THE NR 2 OIL FILTER BYPASS LIGHT THEN CAME BACK ON. THE THROTTLE WAS THEN PLACED TO IDLE AND ABNORMAL SHUTDOWN PROCEDURES WERE FOLLOWED. AN EMERGENCY WAS DECLARED AND THE ACFT LANDED SAFELY WITHOUT INCIDENT. UPON INSPECTION OF THE NR 2 ENGINE, IJW MAINTENANCE FOUND THE THERMAL ANTI-ICE TUBE BROKEN AND SOME CARBON BUILD-UP IN THE MAIN OIL FILTER. BOTH THE ANTI-ICE TUBE AND OIL FILTER WERE CHANGED ALONG WITH THE OIL FILTER BYPASS SWITCH. THE ENGINE WAS RAN TO ENSURE THAT NO FAULTS WERE STILL PRESENT IN THE OIL FILTER BYPASS WARNING SYSTEM, NONE WERE NOTED AND THE ACFT WAS RETURNED BACK TO SERVICE.

SHORTLY AFTER TAKEOFF, ACFT EXPERIENCED A LOSS OF CAPTAIN'S AIRSPEED INDICATOR, ALTIMETER, IVSI, TAWS, NR 1 TRANSPONDER FOLLOWED BY A CARGO SMOKE DETECTOR ILLUMINATION, FOLLOWED BY RT AFT NR 2 FUEL BOOST PUMP CIRCUIT BREAKER POPPED FOLLOWED BY BOTH CAPTAIN'S AND F/O'S ATTITUDE INDICATORS IN DISAGREEMENT WITH THE EMERGENCY HORIZON WITH GYRO FLAGS DISPLAYED ON BOTH CAPTAIN'S AND FIRST OFFICER'S ATTITUDE GYROS. THE FLIGHT WAS TERMINATED BY NOT CONTINUING ON TO THE PLANNED DESTINATION, AND INSTEAD DECLARING AN EMERGENCY AND LANDING AT THE CLOSEST AIRPORT THAT COULD ACCOMMODATE THE ACFT. SECTION 5 AND 6 BELOW WILL NOT BE COMPLETED AS THE ROOT CAUSE OF THE DEFECT HAS YET TO BE DETERMINED. MAINTENANCE HAS NOT YET TAKEN PLACE ON THE ACFT.