AMS 375 - FINAL LUBRICATION OF
SPHINCTER EXAM QUESTIONS AND
ANSWERS GRADED A+ 2026
Class Rating - ANS Certificate to work on a specific class or range of aircraft and aircraft
components (broad spectrum of radicals)
6 types of class ratings - ANS - Airframe
- Radio
- Powerplant
- Propeller
- Instrument
- Accessory
Limited Ratings - ANS Certificate to work on specific make and model or specific
system/component
*Can have multiple
Why can some repair stations only have limited ratings? - ANS Class rating cover a more
broad spectrum and may be more expensive and difficult to maintain all approved documents
when only working on a few specific models of aircraft
@COPYRIGHT 2026/2027 ALLRIGHTS RESERVED 1
, Limited Rating for Specialized Services - ANS Repair shops of manufacturers that nor part of
the normal manufacturers list
* Welding shops or floats
What authority level is "M"? - ANS Performs management functions for the repair station
What authority level is "S"? - ANS Performs supervisory functions for the repair station
What authority level is "l-1"? - ANS Full inspection authority
What is the authority level of "1-2"? - ANS Delegated inspection authority
FAR 43 - ANS Maintenance, Preventive Maintenance, Rebuilding, and Alteration
FAR 45 - ANS Identification and Registration Markings
FAR 65 - ANS Certification of airmen other than flight crew
How long must training records be retained? - ANS Minimum of 2 years
How long must repair stations keep records of work performed? - ANS At least 2 years from
the date the article was approved for return to service
Operation Specifications (Op Spec) - ANS FAA list of specifies class ratings and limited ratings
Capability List - ANS Self evaluated list of specific models a repair station can work on and the
limitations of each model
@COPYRIGHT 2026/2027 ALLRIGHTS RESERVED 2
SPHINCTER EXAM QUESTIONS AND
ANSWERS GRADED A+ 2026
Class Rating - ANS Certificate to work on a specific class or range of aircraft and aircraft
components (broad spectrum of radicals)
6 types of class ratings - ANS - Airframe
- Radio
- Powerplant
- Propeller
- Instrument
- Accessory
Limited Ratings - ANS Certificate to work on specific make and model or specific
system/component
*Can have multiple
Why can some repair stations only have limited ratings? - ANS Class rating cover a more
broad spectrum and may be more expensive and difficult to maintain all approved documents
when only working on a few specific models of aircraft
@COPYRIGHT 2026/2027 ALLRIGHTS RESERVED 1
, Limited Rating for Specialized Services - ANS Repair shops of manufacturers that nor part of
the normal manufacturers list
* Welding shops or floats
What authority level is "M"? - ANS Performs management functions for the repair station
What authority level is "S"? - ANS Performs supervisory functions for the repair station
What authority level is "l-1"? - ANS Full inspection authority
What is the authority level of "1-2"? - ANS Delegated inspection authority
FAR 43 - ANS Maintenance, Preventive Maintenance, Rebuilding, and Alteration
FAR 45 - ANS Identification and Registration Markings
FAR 65 - ANS Certification of airmen other than flight crew
How long must training records be retained? - ANS Minimum of 2 years
How long must repair stations keep records of work performed? - ANS At least 2 years from
the date the article was approved for return to service
Operation Specifications (Op Spec) - ANS FAA list of specifies class ratings and limited ratings
Capability List - ANS Self evaluated list of specific models a repair station can work on and the
limitations of each model
@COPYRIGHT 2026/2027 ALLRIGHTS RESERVED 2
