BHT-206A/B-SERIES-MM-1
5-00-00
Page 174 Rev. 14 30 APR 2013
Export Classification C, ECCN EAR99
b. Main rotor blades.
(1) Dimensionally check main rotor blade retention
bolt hole for indications of permanent deformation or damage. If
inside diameter of bushing in hole is elongated in excess of
0.0015 inch (0.038 mm), remove blade from service and return
it to a major overhaul facility for further inspection. Any evident
looseness of bushing is cause for blade scrapping.
BHT-206B3-CR&O (2) Remove tip cap assembly from main rotor blade
and inspect tip cap attaching screws for deformation. Any
deformation of screws or elongation of mating holes in spar is
cause for blade scrapping.
(3) Visually inspect main rotor blade for skin wrinkles
or deformation. If any indication of wrinkles or deformation exist,
return blade to a major overhaul facility for evaluation.
(4) If main rotor blades pass previous inspection, they
are acceptable for continued service.
c. Tail rotor blades.
(1) If one tail rotor blade of a pair has been damaged
badly enough that metal has been torn or any bond plies have
separated, then both blades and tail rotor hub must be
scrapped.
(2) If contour of a blade has been damaged slightly
(distortion), then both blades and tail rotor hub shall be
scrapped.
(3) If any movement of tip block or root end balance
weights has occurred, scrap tail rotor hub assembly and both
tail rotor blades.
(4) If tip block is cracked, scrap tail rotor hub assembly
and both tail rotor blades.
(5) If tail rotor blades pass above inspection
requirements and no other discrepancies exist, blades are
acceptable for continued service.
5-55. OVERSPEED MAIN ROTOR — 114% OR GREATER (CONT)
DATA REFERENCE INSPECTION TASK DESCRIPTION
INITIAL
MECH OTHER
To Next Page
Loading...
Need help?
General
