Greene Tweed’s Post

Global standards are crucial for aircraft interoperability and safety, yet they create challenges for suppliers of critical components due to frequent changes.

OTD 2010 An ambiguous spec for standard parts features in a night time engine failure and nearly 30 IFSDs before the problem was contained. https://lnkd.in/ds5p262 #flightsafety #aviationsafety #airworthiness 

#3A AIRSHIP RULES COMMENTS TODAY is the last day for public comments on the FAA's new MOSAIC rules for Light Sport Aircraft. I gave some, here is A part of the third. Comment: #1 AIRSHIP ENVELOPE SAFETY CONCERNS by Jesse Blenn This relates to my work on the Lighter-than-air Subcommitee of ASTM. This and my next comment is about the two most glaring safety concerns that I see being overlooked in airship standards, both in FAA P-8110-2 Airship Design Criteria and the ASTM Standard Specification for Design and Performance Requirements for Lighter-Than-Air Light Sport Aircraft F2355 – 14 (22). AIR AND GAS VALVES. In airships, the integrity of the envelope (the lifting gas container) is paramount. There are two main dangers to that integrity. First is the danger of overpressure and possible catastrophic envelope failure (explosion) caused by rapid climbing either from control inputs or wind gusts in storms that may be encountered. Automatic operating air and gas valves are normally expected to avoid that condition, but the present regulations are VERY deficient and need to be changed. I will give details. Again, inflated envelopes and their pressure regulation systems are both the main difference between LTA and other LSA, and also their main source of safety concerns. The present LSA LTA standards are lacking clarity and safety considerations here. The added size and weight of correctly sized gas and air valves is a small amount to pay for the greatly increased safety margin that they provide.

Boeing Saga: Here Comes The U.S. Congress…🙄 #Skeptical: As the #Boeing #safety saga unfolds, #Congress steps into the fray, with hearings planned to address #whistleblower claims regarding safety issues in Boeing’s #aircraft fuselages. While congressional involvement signifies a heightened scrutiny of Boeing’s practices, some voices express #skepticism about Congress’s motives. Critics suggest that Congress’s interest may be more about political grandstanding than genuine efforts to address the root cause of the problem. Nevertheless, the congressional hearings serve as a crucial platform for investigating the allegations and holding Boeing accountable for ensuring the safety and integrity of its aircraft. This development underscores the urgency of addressing safety concerns in the #aviation industry and highlights the need for transparent and thorough investigations to safeguard passenger safety. https://lnkd.in/dXQHzS-N

EASA EAD H160 Main Rotor Swashplate Bearing (premature in-service degradation). Repetitive inspections of the bearing to supplement VHM analysis. https://lnkd.in/ehYVGxMa #helicopter #airworthiness

Did you know that statistically, flying is the safest method of transport? This can be partly put down to the quality of tools used during production and maintenance of the aircraft. To ensure your torque tools are still reading correctly, regular calibrations and verifications should take place. Under torquing nuts will cause the fastener to shake loose, increasing the forces placed on the other fasteners. Over torquing the nuts can damage the fastener, which can also lead to the fastener to come loose. Both cases can lead to fastener failures, which can have disastrous results. Frequent verifications before a work shift can ensure your torque tools are reading correctly and help you identify any faulty tools before they're used on an aircraft, providing you with confidence in the equipment you are using. Here at AWS, we manufacture a range of high accuracy, high convenience torque verification equipment. Speak to one of our experts to hear how we can strengthen your quality control procedures. https://buff.ly/3LPTuut #quality #torque #aerospace #qualitycontrol #safety

Did you know that 80% of commercial #Aircraft rely on Greene Tweed for critical components? Read the article to learn how our advanced #Sealing solutions and composites deliver safety, efficiency, and #Sustainability—on the ground and in the sky. #AviationWeek

OTD in 2014: A failed brazed stator assembly repair resulted in an uncontained turbine failure. The investigation identified apparent omissions in a DER produced repair scheme.  https://lnkd.in/da-3gQ4 #flightsafety #aviationsafety #airworthiness #aviationmaintenance

Discover the significance of high-temperature aerospace seals and gaskets in enhancing efficiency and safety within aircraft operations. Learn about their applications across critical systems like engines, fuel, and hydraulic. Find out how these specialized components contribute towards improved performance and reduced emissions levels in aviation. https://lnkd.in/gSEe-egY

SEAL Aviation was called out to a Lear 45 to remove corrosion that a customer had identified around a static wick base. Upon removal of the static wick, additional corrosion was identified underneath the static wick base. SEAL Aviation then removed the corrosion and coordinated with our NDT team to perform an eddy current inspection and an ultrasound thickness mapping. The SEAL Aviation Team worked with engineering for the repair, installed the static wick base and performed an electrical bonding check. This is another example how the SEAL Aviation "one stop shop" concept works to minimize downtime and cost. https://lnkd.in/e8bum3D #Aviation #Lear #Engineering #Bombardier