Posts Tagged ‘MD900’

AD Main rotor blade retention bolts for MD900 MD Helicopters

Thursday, October 31st, 2013

The FAA is adopting a new airworthiness directive 2013-20-16 (AD) for MDHI Model MD900 helicopters with certain main rotor blade (MRB) retention bolts (bolts) installed. This AD requires a daily check of the position of each bolt, a daily check and a repetitive inspection for a gap in each bolt, and, if necessary, removing and inspecting the bolt for a crack and replacing any cracked bolt with an airworthy bolt. This AD was prompted by multiple reports of in-service bolt failures. The actions are intended to prevent failure of a bolt, which could lead to loss of MRB structural integrity and subsequent loss of control of the helicopter. DATES: This AD is effective December 5, 2013. pdf icon 2013-20-16.pdf

AD on Main rotor hub MD900 Helicopter

Monday, November 22nd, 2010

AD 2010-18-52 – MD Helicopter MD900

pdf icon2010-18-52.pdf

AD for Cracks in the lower main rotor hub on MD Helicopters

Tuesday, August 24th, 2010

AD 2010-18-52 for Cracks in the lower main rotor hub on MD Helicopters

MD Helicopter MD900
for subject

pdf icon2010-18-52_emergency.pdf

AD for Cracks in the lower main rotor hub on MD Helicopters MD900

Friday, August 20th, 2010

Cracks in the lower main rotor hub on MD Helicopters MD900

AD 2010-18-51 for MD Helicopter MD900

pdf icon2010-18-51_emergency.pdf