AviZone

Grade 100VLL aviation gasoline (avgas) is developed to provide a lower lead alternative to 100LL in response to impending environmental regulations. Grade 100VLL is identical to 100LL in all aspects, except that the maximum lead content is reduced by about 19%.  Grade 100VLL has the same minimum octane rating and will provide the same level of anti-knock performance as 100LL and 100 avgas grades. The FAA collaborated with industry on the ASTM International task force that evaluated data supporting the incorporation of grade 100VLL into specification D910. The FAA determined that grade 100 VLL meets all of the performance requirements of grades 80, 91, 100, and 100LL and will perform identically in existing aircraft and engines FAA  Recommendation 1. Grade 100VLL avgas is acceptable for use on those aircraft and engines that are approved to operate with grades 80, 91, 100, or 100LL avgas. 2. ASTM D910 specifies blue coloration for both grade 100VLL avgas and grade...

" (We saw) evidence of oil streaming down the belly and to the tail (of this 172S)," says this mechanic. "And oil was noted dripping from a drain tube below the firewall. This drain tube connected to an overflow fitting on the engine mounted mechanical fuel pump (P/N LW15473). The pump core was disassembled and oil was found leaking through the first of two diaphragms in this dual diaphragm pump. The rubber material covering the base material of the diaphragm was found flaking off. This base material is porous—allowing oil through the first diaphragm and into the ring chamber that allows oil to drain overboard without contamination of the fuel side of the pump. Failure of the second diaphragm would allow fuel injection to become contaminated. In a two month period, we have found two pumps draining oil overboard. A third aircraft was found with oil contamination in the fuel injection system." ( curtsy: flight safety magazine)   

                                                                                            A report on an accident to a homebuilt Jabiru aircraft which suffered a jammed rudder control on landing, causing it to leave the runway surface and turn over, injuring the occupants. The jam had apparently occurred as a result of insufficient clearance between the leading edge of the rudder and the trailing edge of the fin.                  Although jamming of aircraft control surfaces is not common in flight, it can have catastrophic consequences. As the AAIB report points out, aerodynamic or inertial loads can distort aircraft skin during flight, and any possibility of such distortion causing a control jam should ...

An owner or operator shall ensure that a system has been established to keep the following records for the periods specified: 1. All detailed maintenance records in respect of the aircraft and any life-limited component, at least 24 months after the aircraft or component was permanently withdrawn from service. 2. The total time and flight cycles as appropriate, of the aircraft and all life-limited components, at least 12 months after the aircraft or component has been permanently withdrawn from service. 3. The time and flight cycles as appropriate, since last scheduled maintenance of the component subjected to a service life limit, at least until the component scheduled maintenance has been superseded by another scheduled maintenance of equivalent work scope and detail.                                                      ...

FAA advised revised fuel sampling procedure before preflight. Procedure  With the airplane in the normal ground attitude and starting at the highest drain location, check all drain locations for contaminants before every flight, whether or not refueling has occurred. Have fuel sample disposal provisions, proper lighting, and a small ladder at your disposal to properly check for fuel tank system contamination. • Drain at least one cup of fuel (using a clear sampler cup) from each drain location. • Drain the fuel strainer as required to completely flush its contents in each of the fuel selector positions. • Check for water, clarity, cloudiness, haze, proper fuel type/grade (i.e.; 100LL is light blue in tint, jet fuel is clear or yellowish), odor, or other contaminants. • If any contamination is detected in the fuel tank system, thoroughly drain all drain locations again. • If contamination is observed, take further samples until the fuel appears clear,...

In compliance of CAR M MA 305, it is required to generate an aircraft document folder for easy retrieval of information related to particular aircraft. AIRCRAFT DOCUMENT FILE AIRCRAFT MAKE _______________ MODEL ____________ S/N _____________ TAB SUBJECT 1. CERTIFICATE OF AIRWORTHINESS 2. ANNUAL REVIEW CERTIFICATE 3. CERTIFICATE OF. REGISTRATION 4. AEROMOBILE LICENCE 5. RENEWAL SLIP OF AEROMOBILE LICENCE 6. INSURENCE 7. TYPE CERTIFICATE DATA SHEET 8. EXPORT CERTIFICATE OF AIRWORTHINESS 9. PROOF OF DE-REGISTRATION 10. NOISE STANDARDS 11. SUMMARY OF AIRCRAFT FLIGHT TIME 12. AIRWORTHINESS DIRECTIVE STATUS 13. SERVICE BULLETIN STATUS 14. INSTALLED COMPONENT LIST 15. HARD TIME COMPONENT STATUS 17. ENGINES – SUMMARY DATA 18. STRUCTURAL REPAIRS 19. MAJOR ALTERATIONS – STC’S 20. FLIGHT MANUAL CURRENCY 21. WEIGHT AND BALANCE AND EQUIPMENT L...

FAA AD 2010-04-05 McCauley Propeller Systems 1A103/TCM Series Propellers AD requires, for certain serial numbers (S/Ns)of McCauley Propeller Systems A103 /TCM series propellers, initial and repetitive visual and dyepenetrant inspections for cracks in the propeller hub , replacement of propellers with cracks that do not meet acceptable limits, and rework of propellers with cracks that meet acceptable limits 1. AD requires, for all McCauley Propeller Systems 1A103/TCM series propellers, the same actions but at reduced compliance times. 2. This AD also requires inspections of the bolt holes, reaming holes if necessary, and inspections of steel reinforcement plates and gaskets 5 AD issued to prevent propeller separation due to hub fatigue cracking, which can result in loss of control of the aeroplane 6 AD 2003-12-05 required inspections starting at 3,000 operating hours TIS 7 . McCauley ASB221E , dated January 28, 2010 describes, for all McC...

McCAULEY PROPELLER DGCA/McCauley/18R1 FAA AD 2010-04-05 McCauley Propeller Systems 1A103/TCM Series Propellers Effective Date March 10, 2010 AD supersedes AD 2003-12-05 1. AD requires, for certain serial numbers (S/Ns)of McCauley Propeller Systems A103 /TCM series propellers, initial and repetitive visual and dyepenetrant inspections for cracks in the propeller hub , replacement of propellers with cracks that do not meet acceptable limits, and rework of propellers with cracks that meet acceptable limits 2. AD requires, for all McCauley Propeller Systems 1A103/TCM series propellers, the same actions but at reduced compliance times. 3. This AD also requires inspections of the bolt holes, reaming holes if necessary, and inspections of steel reinforcement plates and gaskets 5 AD issued to prevent propeller separation due to hub fatigue cracking, which can result in loss of control of ...