Recommends FAA Require Checks Into MRA Internal Leakage
The National
Transportation Safety Board (NTSB) has issued two recommendations
that the FAA immediately require Sikorsky S-76 operators conduct
immediate checks into leakage in the internal assemblies of the
helicopters' main rotor actuators.
The NTSB's specific recommendations are as follows:
(Urgent A-05-33)
Conduct an immediate internal leakage test of all main rotor
actuators with more than 500 hours since new and/or overhaul;
Conduct subsequent recurring tests at a period not to exceed
500 hours;
Report the test results to the Federal Aviation Administration
and/or Sikorsky; and
Correct any problems as necessary.
(Urgent A-05-35)
The NTSB recommends the FAA require Sikorsky S-76 helicopter
operators to:
Conduct immediate visual and laboratory examinations of
hydraulic fluid and filter elements in hydraulic systems with
actuators with more than 500 hours since new and/or overhaul for
plasma flakes or other contamination that exceeds the
manufacturers' allowable limits of concentration and size;
Conduct subsequent recurring tests at a period not to exceed
500 hours;
Report findings of contamination and flakes to the Federal
Aviation Administration and/or Sikorsky and
Correct any problems as necessary.
The NTSB also recommends the FAA direct the principal operations
inspectors of all Sikorsky S-76 helicopter operators to reemphasize
the importance of, and requirement for, a preflight check of
control movement smoothness and flight control 'stick-jump' at
every engine start.
DETRESFA (Distress Phrase) The code word used to designate an emergency phase wherein there is reasonable certainty that an aircraft and its occupants are threatened by grave and i>[...]
"General aviation is at the forefront of developing and introducing innovative technologies that will transform the entire aviation industry..." Source: Kyle Martin, Vice President>[...]
Direct Straight line flight between two navigational aids, fixes, points, or any combination thereof. When used by pilots in describing off-airway routes, points defining direct ro>[...]
Aero Linx: Women in Corporate Aviation Women in Corporate Aviation support individuals seeking career advancement and professional development in the business aviation industry. Me>[...]
“We would like to thank the many volunteers that help throughout the year to pull off the event, as well as the several reviewers, judges, and SURVICE staff that provide team>[...]