N447QS
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
BRAKES PULSATE OR GRAB AND RELEASE UNDER LIGHT TO MODERATE BRAKING WHILE TAXING. THEY STOP WELL WITH HEAVY BRAKING. THE GRABBING IS MOST NOTICEABLE WHEN BRAKES ARE WARM AFTER LANDING.
NOTICED A WEIRD HUMMING AND NOTICABLE VIBRATION DESCENDING THROUGH FL300 AND CONTINUING OFF AND ON THROUGH 3000 FT. NOTICED IT WAS STRONGEST NEAR THE MIDDLE OF CABIN BELOW MIDDLE SEATS ON LT SIDE OF AIRPLANE. WAS STRONGER AT HIGHER AIRSPEEDS INSPECTED THE LATERAL PANEL SEALS, WING ROOT FILLET PANEL SEALS & FWD WING TO FUSELAGE FAIRING SEALS. NOTED A LOOSE PIECE OF SEALANT ON LT WING ROOT FILLET PANEL & LATERAL PANEL SEAL WHERE THEY MEET. ALSO NOTED LOWER CENTER WING TO FUSELAGE FAIRING SEAL WAS NOT SECURE TO PANEL IN ANY SPOT, EXCEPT ONE LUMP TOWARDS MIDDLE OF RTV BUILT UP TO FILL THE VOID. SEAL WAS ALSO SLIGHTLY WAVY. HIGHLY SUSPECT THIS WAS CULPRIT OF HUMMING NOISE. APPLIED NEW SEALANT ON LT WING ROOT FILLET PANEL & LATERAL PANEL SEAL WHERE THEY MEET. CLEANED UP ALL OLD RTV & RESEALED & SMOOTHED OUT THE LOWER CENTER SECTION FWD WING TO FUSELAGE FAIRING SEAL FWD WING TO FUSELAGE FAIRING SEAL RTV APPLICATION WC NO E50-53-0001 1 REV 2 DATED 07 AUG 2023. NO DEFECTS NOTED.
LEFT AND RIGHT BRAKES. ON LANDING BRAKES PULSING WHEN PRESSURE APPLIED. FROM LANDING SPEED TO SLOW TAXI SPEED. REPLACED BRAKE SCREW ADAPTER. OPS CHECK GOOD. IAW AMM CH 32-40-00.
WHILE DESCENDING AT 2500 FPM THROUGH FL260 GOT RED CAB ALTITUDE HI CAS & SAW CABIN PRESSURE CLIMBING UP THROUGH 8000 WHILE PUTTING MASK ON. BY COMPLETETION OF BOTH OF US DONNING MASKS & ESTABLISHING COMMUNICATIONS MESSAGE EXTINGUISED AND CABIN PRESSURE RETURNED TO NORMAL. LEFT MASKS ON OUT OF AN ABUNDANCE OF CAUTION AND CONTINUED DOWN TO 8,000'. INTERROGATED CMC FOR "CABIN ALTITUDE HI" CAS MESSAGE AND CORRELATED FAULTS. CMC DID NOT SHOW "CABIN ALTITUDE HI" CAS MESSAGE OR ANY FAULTS RELATED TO PRESSURIZATION SYSTEM. PER MCC PERFORMED INSPECTION OF THE ECMU AND ASSOCIATED WIRING. NO DEFECTS NOTED. PERFORMED AUTOMATIC PRESSURIZATION CONTROL MODE OPS CHECK & MANUAL PRESSURIZATION CONTROL MODE OPS CHECK IAW MM 21-31-00. OPS CHECK GOOD. NO DEFECTS NOTED AT THIS TIME. SUSPECT INTERMITTENT FAILURE OF ECMU. PART ON ORDER. R & R ECMU IAW AMM 21-31-01. OPS CHECKS GOOD.
MAIN DOOR VISUAL INDICATOR: UPON #2 ENGINE START. THE MAIN CABIN DOOR WENT FROM CLOSED TO OPEN ON THE STATUS PAGE WITH A DOOR PAX OPEN WARNING MESSAGE. UPON INSPECTION OF THE MAIN CABIN DOOR, THE TOP RIGHT GREEN INDICATOR FLAG WAS MISSING WHILE THE CABIN DOOR HANDLE WAS FULLY SECURED. AFTER CYCLING THE DOOR FROM CLOSED TO OPEN, THE GREEN FLAG WAS STILL MISSING. AFTER SHUTTING DOWN THE ENGINE, CYCLING THE DOOR BROUGHT THE GREEN INDICATOR BACK INTO VIEW. THE GREEN INDICATOR FLAG MENTIONED IS ON THE TOP RIGHT OF THE DOOR ON THE STEP. SEE ATTACHED PICTURE FOR REFERENCE. CORRECTIVE ACTION: OPS CHECKS. COULD NO REPLICATED DEFECT. NO DEFECTS NOTED. IAW EMB-505 52-00-00.
CABIN EMERG LIGHT: ALL CABIN EMERGENCY LIGHT REMAIN ILLUMINATED WITH THE SWITCH IN THE ARM POSITION. LIGHTS ALSO FLICKER ON AND OFF WHILE IN THE ARM POSITION. REMOVED & REPLACED ENTRYWAY COURTESY LIGHT SWITCH WITH NEW PN: 8121 J83ZGE22 IAW EMB-505 AMM CHANTER 33-26-01. OPS CHECKED GOOD.
CABIN EMER LIGHTS FLASHING WHEN SWITCH IS IN ARM POSITION. TROUBLESHOT CABIN EMERGENCY LIGHTS AND FOUND #2 EMERGENCY BATTERY FAILS TEST. REPLACED FORWARD AND AFT EMERGENCY BATTERIES (FORWARD REPLACED AT CUSTOMER REQUESD REFERENCE AMM 33-52-01. OPERATIONAL CHECK SATISFACTORY.
CABIN EMERG LIGHTS WERE FLICKERING WHEN IN THE ARMED POSITION. ACCOMPANIED BY, EMER LIGHT NOT ARM CAS MESSAGE. CYCLED LIGHTS OFF AND BACK TO ARM. CONDITION RETURNED. ARRIVED AT AC AND POWERED ON AS REQUIRED. PERFORMED EMERGENCY LIGHTS OPERATIONAL CHECK. OPS CHECK SATISFACTORY AT THIS TIME. NO FLICKERING NOTED. CONTACTED MCC AND RELAYED RESULTS. MCC AGREED ITEM IT OK FOR SIGN OFF SINCE NO PRIOR HISTORY. WORK PERFORMED IAW AMM 33- 52-00.
ON TAXI FOR DEPARTURE, NOTICED PULSING IN BRAKES. ROLLED DOWN TO A QUICK TAXI SPEED FOR RUNWAY EXIT, RT MLG BRAKE GRABBED FULLY, CAUSING RT TIRE TO SKIP, BEGAN ALTERNATING QUICKLY BETWEEN FULL GRAB & NOTHING. HAD TO TAXI IN SLOWLY AS BREAK APPLICATION WOULD CAUSE EXCESSIVE PULL TO RT & SLIGHT TIRE SKIP. MCC REQUESTED AN ETD FROM MANUFACTURER TO INSTALL A -10 OVER A -11. RECEIVED A MODIFIED BRAKE CONTROL UNIT FROM CUSTOMER. RECEIVED ETD 2024-P300-04900368, R & R BCU IAW AMM 32-41-01-04. PERFORMED FUNCTIONAL TEST IAW AMM 32-41 -00-720-801 . TEST WAS SATISFACTORY. PERFORMED BRAKE BLEEDS IAW AMM 32-40-00-870-801. PERFORMED TAXI CHECK, NO GRAB FELT IN THE BRAKES.
LOSS OF CABIN PRESSURE CLIMBING THROUGH FL320. CABIN RATE OF CLIMB INDICATOR WENT RED & INDICATED 4500FPM INITIALLY THEN 1500FPM FOLLOWING INCREASE OF CABIN INLET AIR FLUCTUATIONS. IMMEDIATE EMG DESC CONDUCTED WITH MASKS ON. SYSTEM BEGAN TO RECOVER DURING THE INITIAL PART OF THE DESCENT. CABIN RATE FLUCTUATED UP & DOWN (CLIMBING & DESCENDING) IN THE DESCENT UNTIL STABILIZING AROUND FL200. FL 200 SELECTED FOR HIGH TERRAIN & A NORMAL PRESSURIZATION OPS & INDICATION. DISCUSSED PLAN WITH FODM & KLAS WAS CHOSEN FOR UNSCHEDULED LANDING. DESCENT APPROACH & LANDING INTO KLAS WITH NORMAL PRESSURIZATION INDICATIONS. R & R OUTFLOW VALVE CONTROLLER IAW MM 21-31-01 WITH NO DEFECTS NOTED.
CABIN EMERG LIGHT: CABIN EMERGENCY LIGHTS ARE FLASHING WITH THE EMER LT SWITCH IN THE "ARMED" POSITION.REMOVED #2 EMER BATTERY P/N: 7450LS-00 S/N: 005071. INSTALLED MODIFIED EMER BATTERY IN THE #1 POSITION P/N: 1359S-00 S/N: 001388M. INSTALLED MODIFIED EMER BATTERY IN THE #2 POSITION P/N: 640-13595-00 5/N: 001413M, PERFORMED EMERGENCY LIGHTS OPERATIONAL CHECK PER TASK 33-52-0-710-801-A. CHARGED BOTH BATTERIES FOR THE REQUIRED 90 MIN. OPS CHECK NORMAL REINSTALLED ALL ACCESS PANELS AND REINSTALLED PILOT AND COPILOT SEATS. WORK DONE IAW PHENOM 300 AMN 33-52-01
MAIN DOOR: THE MAIN AIRCRAFT DOOR IS EXTREMELY DIFFICULT TO OPEN FROM THE INSIDE. IT REQUIRES BOTH HANDS AND LOTS OF FORCE ON THE RED HANDLE. IT IS EVEN HARDER TO CLOSE IT FROM THE OUTSIDE. // SIGNOFF// LUBRICATED MAIN DOOR LATCH PINS AS NEEDED. WORK PERFORMED IAW EMBRAER PHENOM 300 AMM CH 52-11-21