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Tue, Apr 29, 2008

AD: MD Helicopters

AD NUMBER: 2008-08-11
MANUFACTURER: MDHI
SUBJECT: Airworthiness Directive 2008-08-11
SUMMARY:
This amendment adopts a new airworthiness directive (AD) for MD Helicopters, Inc. (MDHI) Model MD900 series helicopters that requires modifying the pilot and co-pilot dual-control directional pedal assemblies, or the pilot single-control directional pedal assembly (directional control pedal assembly).

This amendment is prompted by an accident which has been attributed to loss of directional control due to failure of the welds in the directional control pedal assembly.

The actions specified by this AD are intended to prevent fatigue cracking in the welds that connect the directional control pedal to the pedal shaft, resulting in loss of directional control and subsequent loss of control of the helicopter.

FMI: www.faa.gov/regulations_policies/airworthiness_directives/

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