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• Progressive Inspection


  An inspection program that allows an aircraft to be inspected progressively, dividing the work load into smaller portions and performed in shorter time periods
• Progressive Inspection


  • The scope and detail is the same as an annual inspection
  • Completion of all the phases completes a cycle that satisfies the requirements of an annual inspection
• Progressive Inspection


  1. Engine inspection

  2. Airframe inspection

  3. Component inspection (e.g. landing gear)
• Progressive Inspection Schedule


  Ensures the aircraft will be airworthy at all times and conform to all applicable FAA aircraft specifications, type certificate data sheets, airworthiness directives, and other data
• Advantage of Progressive Inspection

  Any required segment may be completed overnight, enabling the aircraft to fly daily without missing any revenue earning potential
• If an aircraft is flown more than 200 hours per calendar year, a progressive inspection program is most likely recommended to reduce aircraft downtime and overall maintenance costs
• Items inspected in a progressive inspection program

  • 50 hours
  • 100 hours
  • 200 hours
  • Special inspection items
• The inspection intervals are separated in such a way to result in a complete aircraft inspection every 200 flight hours
• This particular inspection program would not be recommended or practical unless the aircraft is flown more than 200 hours per year
• Requesting a Progressive Inspection Program

  Submit a written request to the FAA Flight Standards District Office (FSDO) having jurisdiction over the area in which the applicant is located
• Special Inspection Items


  • First 25 hours, refill with straight mineral oil
  • Clean filter, replace as required
  • Replace hoses at engine overhaul or after 5 years
  • General inspection every 50 hours
  • Each 1000 hours, or to coincide with engine overhaul
  • Each 100 hours for general condition, lubrication and freedom of movement
  • Each 500 hours. Internal timing and magneto-to-engine timing limits
  • Remove insulation blanket or heat shields and inspect
  • First 100 hours and each 500 hours thereafter
  • If leakage is evident, refer to Governor Service Manual
  • At first 50 hours, first 100 hours, and thereafter each 500 hours or one year
  • Replace each 500 hours
  • Check electrolyte level and clean battery compartment each 50 hours or each 30 days
  • Refer to manufacturer's manual
  • Inspect masks, hose and fittings for condition, routing and support
  • Refer to maintenance manual
  • Lubrication of the actuator is required each 1000 hours or three years
  • Each five years replace all rubber packings, back-ups and hydraulic hoses
  • Replace check valves in turbocharger oil lines each 1000 hours
  • Check alternator belt tension
• Progressive Inspection (14 CFR) part 91.409

  • Requires a certificated mechanic holding an inspection authorization, a certificated airframe repair station, or the manufacturer of the aircraft to supervise or conduct the progressive inspection
  • Requires a current inspection procedures manual available and readily understandable to pilot and maintenance personnel
  • Requires enough housing and equipment for necessary disassembly and proper inspection of the aircraft
  • Requires appropriate current technical information for the aircraft
• The frequency and detail of the progressive inspection shall provide for the complete inspection of the aircraft within each 12 calendar months and be consistent with the manufacturer's recommendations, field service experience, and the kind of operation in which the aircraft is engaged
• If the progressive inspection is discontinued, the owner or operator shall immediately notify the local FAA Flight Standards district office, in writing, of the discontinuance
• After the discontinuance, the first annual inspection under §91.409(a)(1) is due within 12 calendar months after the last complete inspection of the aircraft under the progressive inspection
• The 100-hour inspection under §91.409(b) is due within 100 hours after that complete inspection
• Complete inspection of the aircraft

  A detailed inspection of the aircraft and all its components in accordance with the progressive inspection
• A routine inspection of the aircraft and a detailed inspection of several components is not considered to be a complete inspection
• Large and Turbine Powered Multi-Engine Aircraft

  Require inspection programs tailored to the specific aircraft and its unique operating conditions
• Continuous Inspection Programs


  Similar to progressive inspection programs, but apply to large or turbine-powered aircraft and are more complicated
• Continuous inspection programs require approval by the FAA Administrator (CAAP for Philippines)
• Maintenance program for commercially operated aircraft


  Must be detailed in the approved operations specifications (OpSpecs) of the commercial certificate holder
• Aircraft Checks


  • A-check
  • B-check
  • C-check
  • D-check
• 1. check


  Least comprehensive, occur frequently
• 1. check


  Extremely comprehensive, involving major disassembly, removal, overhaul, and inspection of systems and components, occur only 3-6 times during the service life of an aircraft
• Letter Check


  Continuous inspection program for a large air carrier, consisting of inspection schedules that are normally scheduled prior to due times or cycles
• Over-flying due times or cycles of any required inspection is a direct violation of FAA regulations and may include large monetary fines
• The completion of an "A" check eliminates the need for a service check due at the identical time interval
• A service check is due 48 calendar hours from the completion period of a "service", "A", "C", or "D" check
• The next "A" check phase is due 125 flight hours from a completed "A", "C", or "D" check
• There are twelve sets of "A" checks (A-l, A-2, A-3, A-4) between each complete heavy "C" check
• "C" checks are due every 3600 flight hours and two comprehensive "C" checks are due between every heavy "D" check
• Work Cards


  Act as control documents in the continuous inspection process, issued for all aspects of CAMP (Continuous Airworthiness Maintenance Program) inspections and used to organize inspection instructions and account for the specific steps involved
• Special Inspections

  Scheduled inspections with prescribed intervals other than the normally established inspection intervals set out by the manufacturer, may be scheduled by flight hours, calendar time, or aircraft cycles
• Special Inspection Items


  • Oil change information after an engine overhaul
  • Inspection and replacement of hoses at engine overhaul
  • Magnetic compass compensation every 1000 hours
  • Inspection and replacement of the rubber packings on each brake at 5-year intervals
  • Inspection and lubrication of the elevator trim tab actuator at 500-hour intervals
• Altimeter and Static System Inspections

  Aircraft operated in controlled airspace under instrument flight rules (IFR) must have each altimeter and static system tested within the preceding 24 calendar months
• ATC Transponder Inspections


  Aircraft having an air traffic control (ATC) transponder must have each transponder checked within the preceding 24 months
• Emergency Locator Transmitter (ELT) Inspection

  FAR Part 91.207 requires the ELT inspection every 12 months, including checking for proper installation, battery corrosion, operation of the controls and crash sensor, and the ELT signal
• ATA CHAPTER


  Standardized format for the way in which maintenance information is presented in aircraft maintenance manuals, issued by the Air Transport Association of America (ATA)
• ATA Specification 100 Systems

  • 21 AIR CONDITIONING
  • 21 00 General
  • 21 10 Compression
  • 21 20 Distribution