N721QS
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
Service Difficulty Reports filed with the FAA for this airframe. Filing is largely voluntary — the number of reports is not a measure of reliability. To verify a report, search its control number at the FAA SDRS site.
5 reports on file, 2005-07-19 – 2013-10-21.
Part: CONVERTER — CONTAMINATED (OZONE) · airframe 6,301 hrs · 3,968 cycles
AFTER TAKE OFF WITH APU SHUTDOWN, FLOW PACK BOTH, 250 KTS, CLIMBING THROUGH 12000FT CABIN FILLED WITH SMOKE. FOUL SMELLING, BAD TASTING SMOKE. IAW QRH OPENED DUMP VALVE WHICH REMOVED MOST OF SMOKE. INSPECTED EOS SYSTEM FOR OIL CONTAMINATION. FOUND THE OZONE CONVERTER HAS EVIDENCE OF OIL CONTAMINATION. REMOVED & REPLACED THE OZONE CONVERTER. PERFORMED LEAK CHECK, NO DEFECTS NOTED. OPERATED AIRCONDITIONING SYSTEM WITH NO DEFECTS NOTED. ALL WORK DONE IAW AMM 21-11-5, 21-60-00, 21-00-00, 21-11-06 AND 21-70-00.
Part: SERVO — INOPERATIVE (AILERON) · airframe 3,936 hrs · 2,423 cycles
ON DEPARTURE AFTER AUTOPILOT WAS DISCONNECTED AND ACFT HAND FLOWN TO LEVEL FLIGHT AILERON AND ELEVATOR SEEMED TO BE LOCKED IN POSITION. AFTER APPOX 30 SECONDS, FORCE APPLIED TO AILERON APPEARED TO BREAK THEM FREE. ACFT ROLLED SMARTLY TO THE RT, ROLL WAS SUCCESSFULLY COUNTERED. CONTROL OF AILERON AND ELEVATOR APPEARED TO BE NORMAL, LANDING WAS MADE W/O FURTHER PROBLEM. A/P SERVO WOULD REMAIN ENGAGED AFTER A/P WAS DISENGAGED. R&R SERVO PN 622-5027 102 SN G486 COMPLIED WITH COMP CODE 221506 AUTOPILOTS ACCURIE SERVO MOTOR (SVO-8515) AND MOUNT SMT 8513. PERFORMED AUTO PILOT SERVO TEST IAW MM 22-10-00 WITH NO FAULTS NOTED. ENGAGED AUTO PILOT NUMEROUS TIMES WITHOUT REPEAT OF DISCREPANCY. SAFETY WIRED SERVO MOUNTING BOLTS AND INSTALLED ACCESS PANEL 059099.
Part: UNKNOWN — UNKNOWN
ON DEPARTURE AFTER AUTOPILOT WAS DISCONNECTED AND AIRCRAFT HAD FLOWN TO LEVEL FLIGHT AILERON & ELEVATOR SEEMED TO BE LOCKED IN POSITION.
Part: HANDLE — LACK OF LUBE (EMERGENCY EXIT) · airframe 2,299 hrs · 1,398 cycles
EMERGENCY EXIT EICAS MESSAGE CAME ON CLIMBING THROUGH 10,000 FT AND WENT OUT DESCENDING THROUGH 4,000. FOUND EMERGENCY EXIT HANDLE OUT OF ADJUSTMENT. READJUSTED E-EXIT HANDLE AND LUBED HANDLE IAW G200 MM 52-20-00. OPS CHECKED GOOD
Part: FLAP SYSTEM — MALFUNCTIONED · airframe 994 hrs · 604 cycles
SLATS AND FLAPS INTERMITTANT AFTER TAKEOFF, SELECTED FLAPS, SLATS & KRUEGERS UP. FLAPS STAYED AT 20 DEGREES, SLATS STAYED DOWN AND KRUEGER'S RETRACTED. ALSO HAD THE FOLLOWING ICAS MSG SLAT/FLAP MAINTEN. ITEM IS UNDER INVESTIGATION.