N937AL
Registered owner: ZIPLINE INTERNATIONAL INC, CA (owner ≠ operator)
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.
19 reports on file, 1999-10-29 – 2013-06-17.
Part: WARNING LIGHT — ILLUMINATED (FUEL FILTER)
FUEL FILTER CAUTION LIGHT ILLUMINATED DIMLY.
Part: BEAM — CORRODED (MLG)
CORROSION FOUND ON ROCKER BEAM AROUND PIVOT BUSHING.
Earlier reports · 1999–2011 · 17 reports
2011
Part: BEARING — UNSTAKED (T/R HUB) · airframe 10,750 hrs
INBD BEARING UNSTAKED. ALL 4 FEATHER BEARINGS WERE NEVER ROLL STAKED. NEW YOKE FROM MFG WAS INSTALLED.
Part: LONGERON — CRACKED (ZONE 200) · airframe 10,440 hrs · 33,598 cycles
AFT UPPER LT LONGERON CRACKED.
Part: SKIN PANEL — CRACKED (ZONE 200) · airframe 10,440 hrs · 33,598 cycles
AFT FUSELAGE INSTALLATION TOP SKIN CRACKED.
2006
Part: WINDSHIELD — BIRD STRIKE (COCKPIT)
IN FLIGHT, PILOTS SIDE WINDSHIELD CRACKED DUE TO BIRD STRIKE. MAINTENANCE REMOVED AND REPLACED WINDSHIELD AND INSPECTED AC FOR FURTHER DAMAGE. NO OTHER DEFECTS NOTED. (K)
2005
Part: PITCH LINK — BINDING (M/R HEAD) · airframe 3,826 hrs
BINDING, ROUGH AXIAL PLAY BEYOND MAX. REPLACED WITH NEW BY FIELD MAINTENANCE.
2004
Part: PITCH LINK — BINDING (MAIN ROTOR) · airframe 3,557 hrs
BINDING AND AXIAL PLAY BEYOND MAX. REPLACED W/NEW BY FIELD MAINTENANCE.
Part: WIRE — SHORTED (CHIP DETECTOR)
ON TAKE OFF. WHILE TAKING OFF THE MAIN TRANSMISSION CHIP LIGHT CAME ON, RETURNED TO GI 59 AND LANDED. MAINTENANCE CHECKED CHIP DETECTOR SYSTEM FOUND NO MENTAL, DID FIND UPPER CHIP DETECTOR HAD BROKEN WIRES SHORTING OUT, REPAIRED BROKEN WIRES TESTED GOOD.
Part: DISC PACK — WORN (M/R DRIVE) · airframe 3,184 hrs
FOUND EXCESSIVE PLAY AND RATCHETY. REPLACED W/NEW BY FIELD MAINT.
Part: WARNING LIGHT — ILLUMINATED (M/R GEARBOX)
DURING TAKEOFF, TRANSMISSION CHIP LIGHT STARTED TO FLICKER DURING TAKEOFF, RETURNED TO BASE. MAINTENANCE REMOVED CHIP DETECTOR AND INSPECTED NO CONTAMINATION WAS FOUND. CLEANED CHIP DETECTOR AND REINSTALLED FOUND OIL IN ONE OF THE CONNECTORS CLEANED AND REINSTALLED. COMPLIED WITH LEAK CHECK AND GROND RUN. (M)
2002
Part: BEARING — IMPROPER PART (M/R GEARBOX)
UPON REPAIRS OF GEARBOX, BEARING RACE HAVING TWO SERIAL NUMBERS ETCHED ON RACE. TO PREVENT RECURRENCE: PROPER IDENTIFICATION OF PART BEFORE LEAVING FACTORY.
Part: PINION GEAR — GALLED (GEARBOX)
CHIP LIGHT LUMINATED, HAVING METAL IN OIL. UPON DISASSEMBLY OF GEARBOX, FOUND EXCESSIVE GALLING ON GEAR TEETH (PINION GEAR). EXCESSIVE GALLING ON PINION GEAR DUE TO IMPROPER GEAR MESHING AND EXCESSIVE LOAD TO TORQUE AREA. INSURE GEAR HARDNESS AND PROPER MESHING OF GEAR TEETH.
2001
Part: FRAME — CRACKED (FUSELAGE)
DAILY INSPECTION, CRACKED DOUBLER AND FRAME AT RIGHT HAND NUT PLATE TAB.
Part: WHEEL — CORRODED (ENGINE)
DURING INSPECTION FOR METAL IN OIL, SULFIDATION ON BLADES. ENSURE PROPER COATING APPLIED.
2000
Part: GEAR — GALLED (GEARBOX)
UPON VISUAL INSPECTION, INSPECTED CHIP DETECTOR PLUGS AND FOUND METAL ON PLUGS. SPALLING AND GALLING ON TM GEAR TEETH, POSSIBLE DUE TO IMPROPER MESHING OF GEAR TEETH. (X)
Part: PINION GEAR — GALLED (GEARBOX)
UPON VISUAL INSPECTION, INSPECTED CHIP DETECTOR PLUGS AND FOUND METAL ON PLUGS. SPALLING AND GALLING IN PINION GEAR TEETH, POSSIBLE DUE TO IMPROPER MESHING OF GEAR TEETH. (X)
Part: BEARING — FAILED (TAILROTOR)
APPROACH TO PLATFORM AND DURING SHUTDOWN ON THAT PLATFORM. BEARING FAILURE, CONTAINED.
1999
Part: DISC PACK — FAILED (T/R DRIVE)
DURING GULF COAST PREP, FOUND TAIL ROTOR DRIVESHAFT DISC PACKS SPREAD DURING ROUTINE VISUAL INSPECTION ON A NEW AIRCRAFT. SUBMITTER STATED THIS IS THE 5TH OCCURRENCE OBSERVED WITH THE 407 AT THIS FACILITY.