Fri, Feb 15, 2013
Address Fatigue Cracks Of The NLG End Caps On The Airplanes
The NTSB has sent a letter to Hawker Beechcraft President and CEO Robert S. (Steve) Miller that recommends actions to be taken following a nose gear incident involving a Beech 1900D which occurred May 17, 2011.
On that date, a Beechcraft 1900D sustained minor damage when the left main landing gear collapsed on landing at Denver International Airport. There were no injuries associated with the incident.
In its probable cause report, the NTSB determined that the collapse was the result of fatigue failure of the Nose Landing Gear (NLG) end cap, which resulted in insufficient hydraulic pressure to secure the left MLG in the down-and-locked position.
The NLG end cap had accumulated a total of 29,533 cycles since it was manufactured, and was overhauled in 2008.
As a result of the incident, HBC changed it recommended maintenance practices for the NLG actuator. The board is currently investigating two similar incidents.
The NTSB said in its letter that it recommends that HBC determine the fatigue life of the 1900D nose landing gear end cap with the longitudinal grain direction both aligned and not aligned with the longitudinal axis of the NLG. It further recommends that the company develop and implement a replacement program for all 1900D NLG end caps based on that fatigue life determination, and revise the NLG end cap repetitive inspection procedure and time interval to ensure that fatigue cracks are detection prior to failure, and issue updated guidance to owners and operators regarding those inspections.
(Beech 1900D image from file)
More News
An Amazing Experience Awaits The Chosen Few... Oshkosh, to us, seems the perfect place to get started on watching aviation recover the past couple of years... and so ANN is putting>[...]
“NBAA has a tremendous responsibility to the business aviation industry, and we are constantly collaborating with them. Our flight departments, professionals and aircraft own>[...]
Dead Reckoning Dead reckoning, as applied to flying, is the navigation of an airplane solely by means of computations based on airspeed, course, heading, wind direction, and speed,>[...]
Aero Linx: Vertical Aviation Safety Team (VAST) We are a public–private initiative to enhance worldwide flight operations safety in all segments of the vertical flight indust>[...]
We're Everywhere... Thanks To You! Even with the vast resources and incredibly far-reaching scope of the Aero-News Network, every now and then a story that should be reported on sl>[...]