Special Airworthiness Certificates & Major Alterations Flashcards
6 cards from real IA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Special Airworthiness Certificates & Major Alterations flashcards as text
What action must an IA take before using field approval data from a previous repair as the basis for a similar repair on a different aircraft?
Answer: Contact the approving FSDO to determine whether the previously approved data is appropriate for the new application
Field approval data is specific to the aircraft for which it was approved; using it on a different aircraft requires FSDO review to confirm applicability.
What is required for an alteration to qualify as a 'minor' rather than 'major' alteration under 14 CFR Part 43?
Answer: The alteration must be listed in the aircraft type certificate data and not appreciably affect airworthiness
A minor alteration is one that has a negligible effect on structural strength, flight characteristics, or other airworthiness qualities, and may be approved by an A&P mechanic without IA sign-off.
What does a Special Flight Permit (ferry permit) allow an unairworthy aircraft to do?
Answer: Fly from one location to a maintenance facility for repairs, or to a point of storage or demolition
A Special Flight Permit allows an aircraft that cannot meet standard airworthiness requirements to make limited flights for specific purposes like ferrying to a repair station.
Who may issue a Special Flight Permit for an aircraft that cannot meet airworthiness standards?
Answer: The FAA FSDO, or a Designated Airworthiness Representative (DAR)
Special Flight Permits are issued by FAA FSDO inspectors or DARs authorized for the purpose; an IA alone cannot issue a ferry permit.
What must be included in the aircraft records when an STC is installed to document compliance?
Answer: A copy of the STC, the completed Form 337, and maintenance entries per 14 CFR 43.9
Complete STC documentation includes a copy of the STC, a Form 337 documenting the specific installation, and maintenance record entries per 14 CFR 43.9.
An IA discovers that an aircraft has been altered from its type certificate data sheet weight and balance envelope through the addition of heavy aftermarket equipment. What is the primary concern?
Answer: That the aircraft may be operating outside its certified CG envelope, creating uncontrollable flight conditions
Alterations that shift the center of gravity outside the certified envelope can make the aircraft uncontrollable; the IA must verify that the weight and balance remain within limits.
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