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Thu, Jul 03, 2003

AD: MDHC

AD NUMBER: 2003-08-51
MANUFACTURER: MD Helicopters, Inc.
SUBJECT: Airworthiness Directive 2003-08-51

SUMMARY: This AD applies to Model 369A, D, E, H, HE, HM, HS, F, and FF helicopters, with tail rotor blades, part number (P/N) 369D21640-501, 369D21641-501, 369D21642-501, 369D21643-501, 500P3100-101, 500P3100-301, 500P3300-501, or 500P3500-701, installed, certificated in any category.
To prevent a tail rotor blade pitch horn (pitch horn) from separating from the tail rotor blade, leading to an unbalanced condition, vibration, loss of tail rotor pitch control, and loss of directional control of the helicopter.
This airworthiness directive (AD) establishes a new retirement life of 400 hours time-in-service (TIS) for the tail rotor blades listed in the Applicability section.

FMI: http://ftp.atp.com/ADs/pdf/030851.pdfMD

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