MINR · Robinson R44 · 2019-12-14 · San Antonio, TX, USA
Event
NTSB number
ERA20LA054
Event ID
20191216X01351
Type
Accident
Date
2019-12-14
Location
San Antonio, TX, USA
Coordinates
29.377777, -98.476387
Injuries
Highest injury
MINR
Fatal
0
Serious
0
Minor
3
Uninjured
0
Total aboard
3
Aircraft
Make
Robinson
Model
R44
Registration
N440AH
FAR Part
091
Engines
1
Damage
SUBS
Conditions
Light
DAYL
Weather
VMC
Probable cause
Maintenance personnel’s failure to complete all necessary steps of a service bulletin and subsequent failure to identify the loose lower actuator bearing support bracket during inspections, which resulted in the misalignment of the clutch actuator, resulted in a loss of belt tension on the main rotor drive system, and the subsequent forced landing.