N312QS
Operators of this aircraft
Who operated this tail, and how firmly we know it.
| Operator | Role | Period | Basis |
|---|---|---|---|
| NETJETS AVIATION, INC. (DXTA) | Certificate holder | — | Matched by certificate designator |
Accident & incident history
No NTSB accidents or incidents on file for this aircraft.
Maintenance disclosures
DURING FLT, EMERGENCY LIGHTS REMAINED ILLUMINATED & DID NOT TURN OFF AS EXPECTED. VERIFIED SWITCH POSITION & CYCLED THE EMERGENCY LIGHT SWITCH. LIGHT REMAINED ON THROUGHOUT DURATION OF FLT. APPLIED POWER WITH A GPU. OPS THE EMERGENCY LIGHTS SWITCH NOTING THAT EMERGENCY LIGHTS WOULD ILLUMINATE IN BOTH THE ARMED & ON POSITIONS. GAINED ACCESS TO #1 & #2 EMERGENCY BATTERIES AS REQUIRED. PERFORMED GVI OF BOTH BATTERIES WITH NO OBVIOUS DEFECTS. PERFORMED OPS CHECK OF EMERGENCY LIGHTS IAW MM 33-52-00, NOTING LIGHTS WOULD STAY ON IN THE ARM POSITION. PER FIM TASK 33-50-00-810-801-A, TECHS NOTED THAT WITH ONLY #1 BATTERY CONNECTED, SYSTEM WOULD OPS AS REQUIRED . WHEN ONLY THE #2 BATTERY IS CONNECTED, THE EMERGENCY LIGHTS WOULD STAY ILLUMINATED IN THE ARM POSITION, PER FIM TASK 33-50-00-810-801-A, #2 BATTERY IS FOUND TO BE FAULTY. REMOVED FAULTY #1 BATTERY & INSTALLED REPAIRED BATTERY PER MM 33-52-01. REMOVED FAULTY #2 BATTERY & INSTALLED REPAIRED BATTERY PER MM 33-52-01. PERFORMED THE OPS TEST OF EMERGENCY LIGHTS IAW MM 33-52-01, NO DEFECTS NOTED.
FUEL XFEED FAIL YELLOW CAS: FUEL XFEED FAIL YELLOW CAS DURING FLIGHT CORRECTIVE ACTION; PERFORMED OPERATIONAL CHECKS OF THE FUEL CROSSFEED AND COULD NOT DUPLICATE THE FAULT. MAINTENANCE DONE IAW EMBRAER PHENOM 300 AMM 28-21-10.
DURING TAXI IN AND AFTER ENGINE SHUTDOWN, NOTICED EMERGENCY LIGHTING WAS ON. COMPLIED WITH TOP CHARGE OF EMERGENCY BATTERIES IAW AMM 33-52-01 AND NJA TC-505-33-200403. NO FURTHER DEFECTS.
CABIN EMERG LIGHT: DURING FLIGHT, WITH EMER LT SWITCH IN ARM POSITION, ALL EMER LIGHTS BEGAN FLASHING.///SIGN-OFF REMOVED AND REPLACE RH AFT EMERGENCY LIGHT BATTERY P/N 7450LS-00, S/N 005406. IAW EMBRAER PHENOM 300 AMM CH. 33-52-01-000-801-A. OPS CHECK GOOD.
MAIN DOOR VISUAL INDICATOR: 3 OF THE 8 MAIN CABIN DOOR INDICATORS LOCATED AFT SECTION OF THE DOOR ARE OBSTRUCTED AND BARELY VISIBLE //SIGNOFF// INSPECTED ANO FOUND THAT DIRT AND DEBRIS ARE BLOCKING THE CABIN DOOR GREEN INDICATOR. REMOVED MAIN DOOR AIRSTEP AND CLEANED THE DIRT AND DEBRIS FROM IT. PERFORMED OPS CHECK, OPS CHECK IS GOOD. PUT THE MAIN DOOR AIRSTEP BACK IN ORIGINAL CONFIGURATION. ALL WORK IS DONE IN REF TO EMB-PHENOM 300.AMM 52·14-00.
EMERGENCY LIGHTING: DURING CRUISE WITH EMER LIGHT SWITCH IN ARM POSITION, ALL CABIN EMER LIGHTS FLASHING. // SIGNOFF// GAINED ACCESS TO AND REMOVED AND REPLACED THE FORWARD EMERGENCY LIGHT BATTERY WITH A NEW BATTERY IAW EMB·S05AMM 33-52-01, OPERATIONAL CHECK SATISFACTORY. CLOSED ACCESS.(PN OFF 64SOLS-OO, SN OFF 001459, PN ON 7450LS-OO, SN ON 006668). GAINED ACCESS TO AND REMOVED AFT EMERGENCY LIGHT BATTERY. (02 04 SL). INSTALLED THE AFT EMER LIGHT BATTERY WITH A TESTED UNIT IAW PHENOM 300AMM CH. 33-52-01. OPS CHECKS GOOD. RESTORED ACCESS GAINED
HIGHLIGHTED YELLOW GIA 1 FAIL. ASSOCIATED CAS MESSAGES: YELLOW TCAS FAIL, PTRIM NML FAIL, AP FAIL, YD FAIL, FLAP AND SPEED BRAKE YELLOW X'S, LG WOW SYS FAIL; WHITE XPDR FAULT, BLEED 1 OFF. REMOVED FAULTY GIA NR 1AND INSTALLED A REPAIRED GIA. WORK PERFORMED IAW AMM 31-41-05. PERFORMED SOFTWARE UPLOADING IAW AMM 31-41-05-470-801-A.
NLG LANDING GEAR EXTENSION: DURING LANDING APPROACH AT KDAL, AFTER SELECTING GEAR DOWN RECEIVED AN RED LANDING GEAR LEVER DISAGREEMENT CAS MESSAGE ACCOMPANIED BY RED LANDING GEAR DISAGREEMENT ICON ON THE LANDING GEAR INDICATOR PANEL. PERFORMED QRH PROCEDURE AND PROBLEM PERSISTED. PULLED FREE-FALL HANDLE AND STILL HAD NOSE GEAR DISAGREEMENT. PERFORMED FLYBY THE TOWER AND IT APPEARED TO BE DOWN. MADE NORMAL LANDING AND TAXI TO PARKING WITH NOSE GEAR DOWN AND LOCKED. CAS MESSAGE AND GEAR DISAGREEMENT INDICATIONS PERSISTED THROUGH AIRCRAFT SHUTDOWN.//CORRECTIVE ACTION// REMOVED DAMAGED NOSE LANDING GEAR HARNESS W002 AND INSTALLED NEW NLG HARNESS IAW EMBRAER PHENOM 300 AMM CH 32-21-00. PERFORMED SEVERAL FUNCTINAL CHECKS OF THE EXTENSION AND RETRACTION SYSTEM WITH NO FAULTS NOTED IAW EMBRAER PHENOM 300 AMM CH. 32-31-00.
DURING ACCOMPLISHMENT OF EMBRAER SERVICE BULLETIN 505-55-0004 REV 01 (DATED 06/24/2020) WE NOTED THE FOLLOWING MASS BALANCE WEIGHTS BELOW TOLERANCE AT LEFT ELEVATOR: ADJUSTABLE WEIGHTS PART NUMBER PE915109-L33 (6 EACH BELOW MINIMUM OF 84G), HORN MASS WEIGHT PART NUMBER PE915109-L42 (1 EACH BELOW MINIMUM OF 1095G). ALL WEIGHTS HAS BEEN REPLACED WITH A NEW MASS WEIGHTS AND THE ELEVATOR BALANCING WAS PERFORMED WITH NO FURTHER DEFECTS NOTED. THE ELEVATOR WAS RE-IDENTIFIED TO PART NUMBER 505-11094-615, AS PER SERVICE BULLETIN INSTRUCTIONS. WE ALSO NOTED THE FOLLOWING RIGHT ELEVATOR MASS BALANCE WEIGHTS BELOW TOLERANCE: ADJUSTABLE WEIGHTS PART NUMBER PE915109-L33 (6 EACH BELOW MINIMUM OF 84G), HORN MASS WEIGHT PART NUMBER PE915109-L42 (1 EACH BELOW MINIMUM OF 1095G), MASS WEIGHT OUTBOARD PART NUMBER PE915109-L41 (1 EACH BELOW MINIMUM OF 2049G). ALL WEIGHTS HAS BEEN REPLACED WITH A NEW MASS WEIGHTS AND THE ELEVATOR BALANCING WAS PERFORMED WITH NO FURTHER DEFECTS NOTED. THE ELEVATOR WAS RE-IDENTIFIED TO PART NUMBER 505-11094-616, AS PER SERVICE BULLETIN INSTRUCTIONS. THIS REPORT COMPLIES WITH FAA 14 CFR PART 135 OPERATORâS GMM REQUIREMENTS.
AT FLIGHT LEVEL 400 AP FAIL, YD FAIL, SWPS FAIL, BLEED 2 OFF, STBY BARO NOCOMP, GSD 1 FAIL, SWPS ICE SPEED, HSDB FAULT, LEFT MAIN GEAR WOULD NOT SHOW DOWN BUT STAYED RED. PRESSURIZATION WAS BEING RUN ON MANUAL. TECH REMOVED AND REPLACED REPAIRED GSD NR 1 IAW AMM 31-41-01-000-801-A PERFORMED SOFTWARE/CONFIGURATION PER AMM TASK 31-41-01-470-801-A ALSO PERFORMED AVIONICS INTERGRATION SYSTEM SOFTWARE/CONFIGURATION UPLOADING PER AMM MPP (4610) 31-61-00-470-801-A. OPERATIONS CHECK GOOD.
EMERGENCY CABIN LIGHTS COME ON IN ARMED POSITION. BEGAN TROUBLE SHOOTING EMERGENCY CABIN LIGHTS, IAW FIM P-300 33-50-00 PAGE 3 BLOCK DIA 1 STEP 1 AND 2 FOUND EMERGENCY BATTERY 1 PACK TO FAIL. PERFORMED REPLACEMENT OF EMERGENCY BATTERY 1 WITH MODIFIED UNIT, IAW P 300 AMM 33-52-01. PERFORMED OPERATIONS CHECK TEST OF EMERGENCY LIGHTS, IAW R 300 AMM 33-52-00. NO DEFECTS NOTED EMERGENCY LIGHTS DO NOT COME ON IN ARMED POSITION.
REPLACED LH ELEVATOR HORN MASS BALANCE WEIGHT P/N PE915109-L42 DUE TO BEING UNDER MINIMUM WEIGHT PER SB505-55-A004 REV 4
GEN 1 OFF BUS YELLOW CAS ILLUMINATED - YELLOW GEN 1 OFF BUS CAS ILLUMINATED IN FLIGHT ASSOCIATED WITH BAD ENGINE VIBRATION. AIRCRAFT WAS CLIMBING THROUGH 30,000 AT CLIMB POWER. VIBRATION WAS BAD ENOUGH THAT PASSENGERS CAME TO COCKPIT TO ASK WHAT WAS HAPPENING. //SIGNOFF//REMOVED #1 STARTER/GENERATOR TO FIND IT INTERNALLY FAILED. REPLACED STARTER GENERATOR AND CARBON SEAL JAW EMB 505 AMM MPP 24-31-01-400-801-A AND PWC EMM 72-50-03-400-805. OPERATIONAL CHECK SATISFACTORY
DURING APPROACH, WHEN THE LANDING GEAR LEVER MOVED TO THE DOWN POSITION, THE NOSE GEAR SHOWED A RED BOX AND LG LEVER DISAG CAS DISPLAYED. AFTER RECYCLING GEAR IAW QRH, THE CAS EXTINGUISHED AND ALL THREE GEAR SHOWED GREEN BOXES. LANDING ACCOMPLISHED NORMALLY. MAINTENANCE CYCLED THE LANDING GEAR 10 TIMES, NO DEFECTS NOTED WITH LANDING GEAR INDICATION. THE MANUFACTURER RECOMMENDED TO REPLACE THE LANDING GEAR CONTROL HANDLE AND NOSE GEAR DOWN LOCK SENSOR. REMOVED AND REPLACED THE LANDING GEAR CONTROL HANDLE. REMOVED AND REPLACED THE NOSE GEAR DOWN LOCK SENSOR. CYCLED LANDING GEAR 10 TIMES. NO DEFECTS NOTED. ACCOMPLISHED IAW MM 32-31-01-400-801-A AND 32-61-01-400-802-A.
MAIN EXIT DOOR WILL NOT OPEN FROM INSIDE THE ACFT. RED HANDLE WILL ROTATE UP HALF WAY BEFORE IT BINDS. R & R BROKEN BOLT THAT CAME LOOSE & INSPECTED MAIN DOOR LOCKING & ACTUATING MECHANISM. OPS CHECKE GOOD. ALL WORK DONE IAW AMM 20-10-01.
ON TAXI OUT TO RUNWAY, CAPTAIN PRESSED BRAKES AND BRAKES WENT TO STOPS WITH NO PRESSURE.TROUBLESHOT TO DEFECTIVE PRESSURE SWITCH. REMOVED AND INSTALLED NEW CUSTOMER SUPPLIED SWITCH PER 560 MM 32-42-05 ACCOMPLISHED OPS CHECKS LEAK CHECKS NO DEFECTS NOTED.
CABIN CLIMBED AT MAX RATE, 10,000 FT, CABIN PRESSURE LIGHT CAME ON. THE PNUEMATIC RELAY WAS REMOVED AND REPLACED S/N OFF 15-2131. WORK PERFORMED IAW MM 21-31. SYSTEM OP'S AND LEAK CHECKED GOOD. ALSO REMOVED AND REPLACED FAULTY LT MLG SQUAT SWITCH IAW MM 32-61. SWITCH OP'S CHECKED GOOD.
CO PILOTS LT BRAKE DEPRESSES ALL THE WAY TO THE FLOOR. PUMPING PEDAL TEMPORARILY RESTORES EFFECTIVNESS FOR A FEW SECONDS ONLY. REMOVED COMPLETE LT WHEEL BRAKE MASTER CYL PN 95367-17 SN 0921. INSTALLED OVERHAULED CO-PILOT LT WHEEL BRAKE MASTER CYL PN 95367-17 SN 1246 IAW MM 32-42-02. BRAKE BLEEDING ACCOMPLISHED IAW MM 32-41-00.
CO-PILOT'S LT BRAKE DEPRESSES TO FLOOR WITH NO RESULT. COMPLETED BRAKE BLEED PROCEDURE. BRAKES OPS CHK GOOD. AMM 32-42-00.
DURING THE TAKEOFF ROLL AT APPROXIMATELY 65 KTS, WE HIT A FLOCK OF BIRDS AND ABORTED THE TAKEOFF. (M2B) COMPLIED WITH FOD INSPECTIONS IAW MM. CHAPTER 05-50 MM. CHAPTER 72-00, AND NJA CE-560 AAIP. NO DISCREPANCIES NOTED.
SMOKE COMING FROM TAIL NAV LIGHT AREA. SMOKE SMELLED ELECTRICAL. REMOVED POWER FROM AIRCRAFT SMOKE STOPPED. PLATE UNDER THE LIGHT WAS HOT TO THE TOUCH. REPLACED TAIL NAV LIGHT LENS AND GASKET IAW MM 33-41-01. GROUND CHECKED NORMAL.
SMOKE IN THE COCKPIT AFTER TAKEOFF. REMOVED S/N PCE-JC0296, INSTALLED REPAIRED UNIT IAW MM 71-01-02. OPS AND LEAK CHECK GOOD.
RIGHT ENGINE SHUT DOWN WHEN DOING THE SPEEDBRAKE CHECK. - PERFORMED ENGINE GROUND RUN, EXTENDED SPEED BRAKES SEVERAL TIMES WITH NO DEFECTS TO ENGINES. PERFORMED RAPID DECELERATION OF THE THROTTLES WITH NO DEFECTS ON ENGINES. CYCLED T/R, MOVED FLAPS AND CYCLED SPEED BRAKES WITH NO DEFECTS ON ENGINES PERFORMED SPEED BRAKE TEST IAW 560 AMM 27-61-00. OPS CHECKS GOOD AT THIS TIME REMOVED RT LOWER COWL, CHECKED STATIC RIG OF FUEL CONTROL. NO DEFECTS NOTED. COULD NOT DUPLICATE DISCREPANCY AT THIS TIME.
RT ENGINE STARTED FIRST THEN LEFT. RT ENGINE QUIT. RESTARTED RT ENGINE. FUEL FLOW INDICATOR READS ZERO. ADVANCE THRUST LEVER INDICATOR INCREASES. LEVER TO IDLE INDICATOR READS ZERO. AFTER TWO OR THREE ADVANCES INDICATOR READ NORMAL, BIOCIDAL AGENT PREMIXED. IN ATTEMPT TO DUPLICATE DISCREPANCY, STARTED RIGHT ENGINE, THEN LEFT. RAN ENGINES WHEN LEFT IDLE. ALL INDICATIONS READ NORMAL. STARTED LEFT ENGINE, THEN RIGHT. RAN ENGINES AND LET IDLE. ALL INDICATORS READ NORMAL. COULD NOT DUPLICATE FAULT. INSTALLED FUEL FILTER KIT NR 3070961-01 ON RIGHT ENGINE IAW CESSNA 560 M/M CH 73-10-02. OPS CHECK GOOD.
BRAKE FAILURE ON TAXI OUT. BRAKE ACCUMULATOR IS OUT OF GREEN ARC WITH BATTERY ON. NO VISUAL LEAKS, FOUND ANTI-SKID POWER PACK MOTOR SPINS BUT NO PRESSURE BUILD UP, PUMP SHAFT SHEARED. REMOVED AND REPAIRED POWER PACK ASSEMBLY IAW 560 MM 32-42-00. ALL OPS AND LEAK CHECKS GOOD AFTER BRAKE BLEEDING AT VNY.
ON LANDING ROLL FIRST OFFICER'S RIGHT BRAKE PEDAL WENT ALMOST TO THE FLOOR. CAPTAIN'S SIDE WORKS FINE. AFTER BRAKE PEDAL IS PUMPED UP IT WILL HOLD PRESSURE FOR ABOUT 40 SECS THEN WILL ALMOST GO BACK TO THE FLOOR. ITEM IS UNDER INVESTIGATION.
AFTER SELECTING GEAR DOWN POWER BRAKE LOW PRESS AND ANTI SKID INOP ANNUNCIATOR LIGHTS WOULD NOT EXTINGUISH. USED EMERGENCY BRAKING, BRAKE RESERVOIR IS EMPTY. FOUND LT HYDRAULIC BRAKE LINE LEAKING. REMOVED AND REPLACED HYDRAULIC BRAKE LINE. BLEED LT AND RT BRAKES. SERVICED BRAKE RESERVOIR. BRAKES OPS CHECKED GOOD AND LEAK CHECKED GOOD. ALL WORK DONE IAW CE-560 M/M 32-31-07 AND 32-42-00.
DURING THE STOW CHECK OF THE SPEED BRAKES, THE ENGINE SHUTDOWN , UPON RETURNING THE THROTTLES TO IDLE. PERFORMED GROUND RUN OF RT AND LT ENGINES AT IDLE AND TAKEOFF POWER. OPERATED RIGHT THROTTLE THROUGH FULL RANGE FROM IDLE TO TAKEOFF POWER. FOUND RT ENGINE TO OPERATE NORMALLY. INSPECTED RT ENGINES INLET AND EXHAUST NO DEFECTS NOTED.
CO-PILOTS BRAKES DURING LANDING ARE SPONGY, GO ALMOST TO FLOOR AND WHEN BRAKES GRAB, THE AIRPLANE TURNS TO THE RIGHT. PERFORMED BRAKE BLEEDING PROCEDURES IAW CE560 MM 32-42-00. PERFORMED SATISFACTORY OPS & LEAK CHECK.
CO-PILOTS BRAKES GO TO THE FLOOR AND WHEN BRAKES DID GRAB, THE AIRPLANE TURNED 30 DEGREES HARD TO THE RIGHT. ON ARRIVAL OF ACFT INSPECTED BRAKES FOUND TO APPEAR RELATIVELY NEW. PERFORMED SATISFACTORY BRAKE WEAR CHECK. COMPLETED BRAKE BLEEDING PROCEDURE IAW CE-560 MM 32-42-00. PERFORMED SATISFACTORY OPS AND LEAK CHECK GOOD.
ON LANDING, LEFT BRAKE PEDAL ON CO-PILOT SIDE WENT TO FLOOR. RIGHT PEDAL WORKED NORMALLY. ITEM IS UNDER INVESTIGATION.
CO-PILOT'S LEFT BRAKE FAILURE UPON LANDING. BRAKE WENT TO FLOOR, REQUIRED PUMPING TO RESTORE PRESSURE. VERIFFIED LT CO-PILOT PEDAL SOFT, REMOVED FWD BAGGAGE PANELS TO GAIN ACCESS INSPECTED LINES IN FWD COMPARTMENT FOR LEAKS CHECKED BRAKE WEAR AND WHEEL WELL LINES FOR LEAKS NO LEAKS FOUND AND BRAKE WEAR IS GOOD BLED BRAKES AS NEEDED IAW CE560 MM 32-42-00.
UPON LANDING AND TAXIING BRAKES WERE HARD, MORE THAN NORMAL BRAKING PRESSURE WAS REQUIRED. UNEVEN BRAKING AND JERKING DURING TAXI RESULTED. INSPECTED BRAKE SYSTEM, FOUND NO FAULTS ON PANEL. INSPECTED BRAKES AND FOUND RT BRAKE GRABBING WITH NO PRESSURE APPLIED. REMOVED AND REPLACED RT BRAKE ASSY WITH A OVERHAULED UNIT IAW CESSNA 560 MAINTENANCE MANUAL CHAPTER 32-42-01. BLED BRAKE SYSTEM IAW CESSNA 560 MAINTENANCE MANUAL CHAPTER 32-42-00. LEAK AND OPERATIONAL CHECKS SATISFACTORY.
BRAKES ON CO-PILOT SIDE ARE SPONGY, AND WHEN TURNING OFF RUNWAY LEFT PEDAL WENT TO THE FLOOR. REPEAT WRITE-UP. REMOVED PILOT'S AND COPILOT'S LEFT AND RIGHT MASTER CYLINDERS DUE TO CYLINDERS BYPASSING AND INSTALLED OVERHAULED UNITS IN ALL LOCATIONS. BLED SYSTEM. OPS, LEAK, AND TAXI CHECKS GOOD. ALL WORK DONE IAW CHAPTER 32-42-02 OF THE 560 MM. ANTI-SKID CHECKS GOOD IAW 32-42-00 OF 560MM. PILOT'S LT REMOVED P/N: 9912050-17, SN: 0586.
RIGHT SIDE FOOT BRAKES HAVE TO BE PUSHED TO THE FLOOR TO EFFECT BRAKING. FEELS LIKE AIR IN BRAKE LINE. BLED BRAKES IAW CESSNA 560 MM 32-42-00, OPS CHECK GOOD.
BRAKE PEDALS ON THE RIGHT SIDE FEEL MUSHY GO ALL THE WAY TO THE STOPS AND GRAB. LEFT SIDE IS NORMAL. BLED BRAKES PER CE560 M/M 32-42-00. OPS CHECKED GOOD.
BOTH CAPTAIN'S BRAKES INTERMITTENTLY REQUIRE UNEVEN APPLICATION CAUSING PLANE TO SLOW/STOP UNEVENLY OR GRAB. APPEARS LEFT BRAKE INTERMITTENTLY TRAVELS FURTHER BEFORE ENGAGING. FOUND ANTISKID CONTROL SERVO OPENING AND PORTING FLUID DUE TO FAILED ANTISKID COMPUTER SENDING FAULTY OUTPUT SIGNAL. REMOVED AND REPLACED ANTISKID CONTROL BOX, OPS CHECKED AND LEAK CHECKED GOOD, ALL WORK DONE IAW CESSNA 560 MM CHAPTER 32-42-00.
BATTERY TEMP INDICATOR IN FLIGHT INDICATED 180ºF VARIED SLOWLY TO 160ºF, EMEGENCY DECLARED. INDICATION DURING 2 PREVIOUS LEGS WAS 120ºF PREFLIGHT COCKPIT ROTARY BATTERY CHECKED OK, NO MASTER WARNING ON BATTERY OVERTEMP ANNUNCIATOR. REMOVED AND REPLACED BATTERY TEMP SENSOR, OPERATIONAL CHECK GOOD IAW CESSNA 560 M/M CHAPTER 24-30-01.
AIRCRAFT EXPERIENCED UNCOMMANDED RIGHT RUDDER INPUT DURING CRUISE WITH AUTOPILOT ON, ALSO DEVELOPED NOTICEABLE PITCH ROLL WITH AUTO PILOT ON. PERFORMED NJA OPERATIONAL CHECK FLIGHT AND COULD NOT DUPLICATE DISCREPANCY, NO FURTHER ACTION REQUIRED.
ON TAKEOFF, THE RIGHT ENGINE RPM ROLLED BACK 10 PERCENT AND THE I.T.T. INCREASED TO 700 DEGREES. AIRCRAFT RETURNED AND ENGINE WAS INSPECTED. NO PROBLEM WAS FOUND. AIRCRAFT WAS TEST FLOWN AND NR 2 ENGINE I.T.T. WAS 50 DEGREES HIGHER. FOUND BLEED VALVE OPERATING ON GROUND WHEN NOT CALLED FOR. BLEED VALVE CONTROL AND BLEED VALVE ACTUATOR WERE REPLACED AND PROBLEM CORRECTED.
ON TAKEOFF, THE RIGHT ENGINE RPM ROLLED BACK 10 PERCENT AND THE I.T.T. INCREASED TO 700 DEGREES. AIRCRAFT RETURNED AND ENGINE WAS INSPECTED. NO PROBLEM WAS FOUND. AIRCRAFT WAS TEST FLOWN AND NR 2 ENGINE I.T.T. WAS 50 DEGREES HIGHER. FOUND BLEED VALVE OPERATING ON GROUND WHEN NOT CALLED FOR. BLEED VALVE CONTROL AND BLEED VALVE ACTUATOR WERE REPLACED AND PROBLEM CORRECTED.