N470DP
Registered owner: ZIPLINE INTERNATIONAL INC, CA (owner ≠ operator)
Operators of this aircraft
Who operated this tail, and how firmly we know it.
| Operator | Role | Period | Basis |
|---|---|---|---|
| RED WING AEROPLANE, LLC. (R3WA) | Certificate holder | — | Matched by certificate designator |
Accident & incident history
No NTSB accidents or incidents on file for this aircraft.
Maintenance disclosures
FAIL LIGHT ILLUMINATED. MX COULD NOT DUPLICATE THE ISSUE.
AIRCRAFT DEPARTED KAPF. AT 1500 FEET EMERGENCY PRESS ANNUNCIATION LIGHT ILLUMINATED. AIRCRAFT RETURNED TO KAPF. ACM WAS DEFERRED AND AIRCRAFT FLOWN TO MAINTENANCE AT KMCO. MAINTENANCE AT KMCO FOUND THE 410 DEGREE TEMP SWITCH INOP AND THE 450 DEGREE TEMP SWITCH ERRATIC. SWITCHES WERE REPLACED AND MEL CLEARED.
DURING CRUISE FLIGHT AT 410 EN-ROUTE, CREW FELT THEIR EARS POP AND LOOKED AT THE CABIN PRESSURIZATION RATE GAUGE. CABIN WAS CLIMBING RAPIDLY AND SHOWED A 6,000 FPM CLIMB RATE. 10,000 FT SEGMENT LIGHT ILLUMINATED ON THE ANNUNCIATOR PANEL. DONNED OXYGEN MASKS, FOLLOWED EMERGENCY CHECKLIST. CABIN ALTITUDE NEVER WENT ABOVE 12,500 FT AND PASSENGER OXYGEN MASKS NEVER DEPLOYED. CREW THEN DIVERTED. AIRCRAFT LANDED WITH NO FURTHER INCIDENCE. AIRCRAFT WAS HAD NUMEROUS VISUAL INSPECTIONS AND RUN CHECKS. NO ABNORMALITIES WERE FOUND. OHM TESTS ON THE MAIN LANDING GEAR SQUAT SWITCH SHOWED THE LEFT SQUAT SWITCH HAD UNSTABLE OHMS IN SEVERAL QUADRANTS. SQUAT SWITCH WAS REPLACED AND OPERATIONAL CHECKS FOR ALL EFFECTED SYSTEMS COMPLETED.
DURING CLIMB TO 38,000 FT TO FLIGHT LEVEL OF 40,000 FT, THE CABIN STARTED TO CLIMB 2000 FT PER MINUTE. CAPTAIN DECLARED AN EMERGENCY AND DESCENDED TO A SAFE OXYGEN LEVEL AND LANDED. TROUBLESHOOTING THE SYS FOUND NUT, PN MS210433 HAD SEPARATED FROM COUPLING, PN 744210-4 ON COALESCER BAG HOUSING PN 750346-2, THIS CAUSED THE CABIN PRESSURE SYSTEM TO FAIL. INSTALLED A NEW NUT ON THE COUPLING AND THE SYSTEM IS NOW FUNCTIONING NORMAL. THE MM ONLY CALLED FOR 20-25 INCHES OF TORQUE, NOT ENOUGH. ALSO, MM DOES NOT REQUIRE COUPLING TO BE SECURED WITH SAFETY WIRE.
ON APPROACH, AT 4000 FT, THROTTLE SETTING ABOUT 55 PERCENT, NR 1 ENGINE FLAMMED OUT, APPROACH WAS CONTINUED. THERE WAS 261.5 HRS SINCE O/H ON ENGINE. UNABLE TO DUPLICATE PROBLEM. ACFT HAS MADE SEVERAL TAKEOFF AND LANDINGS SINCE THIS INCIDENT WITH NO FURTHER PROBLEMS.
CABIN ALTITUDE CONTROL LOST DURING DESCENT, ANTI SKID ANNUCIATOR ON DURING DESCENT.