NTSB investigations · 1
Matched to this aircraft by N921RB and the event date: up to this one’s cancellation.
FAA incident reports · 1
FAA accident and incident reports matched to this aircraft by N921RB and the event date: up to this one’s cancellation.
Service difficulty reports · 3
Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.
SDR QS72004F00000Shaft · wornDURING ANNUAL INSPECTION FOUND KNURLED NUT WORN BEYOND LIMITS. UPON REMOVAL OF THE KNURLED NUT AND TAIL ROTOR BALANCE WHEEL FOUND THREADS ON TAIL ROTOR GEARBOX OUTPUT SHAFT, UNDER BALANCE WHEEL, EXCESSIVELY WORN AND GALLED. CUSTOMERS PILOT REPORTED THAT THEYSDR QS72004F00001Coupling · wornRECEIVED FROM MFG AS NEW, COUPLING HAS ROUGH WEAR PATTERNS ON THE TEETH, SHOWS EVIDENCE OF BEING INSTALLED ON A SHAFT, AND HAS A WEAR PATTERN WHERE THE SEAL WOULD NORMALLY RIDE. BELL HAS RECENTLY IMPOSED A 3000 HOUR OVERHAUL OF THE DRIVESHAFT, PART RECEIVED SDR 2003FA0001225Shaft · wornDURING ANNUAL INSPECTION, FOUND KNURLED NUT WORN BEYOND LIMIST. UPON REMOVAL OF THE KNURLED NUT AND TAIL ROTOR BALANCE WHEEL FOUND THREADS ON TAIL ROTOR GEARBOX OUTPUT SHAFT, UNDER BALANCE WHEEL, EXCESSIVELY WORN AND GALLED. CUSTOMERS PILOT REPORTED THAT THE