Bell 206L4 Maintenance Manual page 86

BHT-206L4-MM-1
5-21. 300-HOUR AIRFRAME PROGRESSIVE INSPECTION — EVENT NO. 1 (CONT)
DATA REFERENCE
Chapter 12
BHT-206L4-FM-1
5-00-00
Page 50 Rev. 13 25 FEB 2011
PROGRESSIVE INSPECTIONS
INSPECTION TASK DESCRIPTION
e. Bonded joints of blade skin mating area for suspected
voids or cracks. Pay particular attention in the area of tip block
and doublers.
f. Feathering bearings for looseness and cracks in uniball.
4. Examine the following tail rotor hub and blade assembly
attaching components for condition and security:
a. Spacer
b. Rubber bumper
c. Static stop
d. Nut
e. Balance wheel
5. Check dynamic balance of tail rotor hub and blade
assembly and adjust as required during ground run.
GROUND RUN
G R O U N D R U N O F H E L I C O P T E R T O B E
ACCOMPLISHED BY QUALIFIED PERSONNEL
ONLY.
1. Make sure applicable servicing requirements have been
carried out.
2. Check oil level of transmission, hydraulic tank, engine and
rail rotor gearbox prior to running helicopter.
3. Make sure that helicopter is ready for ground run and that
surrounding area is clear.
4. Start the helicopter and conduct ground run at 100% N
check for leaks and ensure all systems are operational and
parameters are within Flight Manual limitations.
CAUTION
INITIAL
MECH OTHER
to
R
ECCN EAR99