INSTRUCTIONS FOR COMPLETION OF FAA FORM 8110-12,
APPLICATION FOR TC, AMENDED TC, PC, STC, OR AMENDED STC
FAA Form 8110-12 is used for application for a TC, Amended TC, PC, STC, or Amended STC.
Application for a TC and a PC may be made at the same time if desired. Only the appropriate
blocks, as follows, need to be filled out for each type of certificate.
Blocks 1, 2, 3, 4, 5, 6, and 8 for a TC or Amended TC;
Blocks 1, 2, 3, 5, and 8 for a PC;
Blocks 1, 2, 3, 4, 7, and 8 for an STC or Amended STC.
Block 1. Enter the name of the party, corporation or organization to whom the TC, Amended TC,
PC, STC, or Amended STC will be issued. The name will appear on the certificate
exactly as it is entered here.
NOTE: Only the TC holder can either apply to amend the original TC or apply
for an STC. If a person is not the TC holder, that person must apply for an STC
(Refer to 14 CFR 21.113). Also, only STC holders can apply to amend their own
STC.
Block 2. Check appropriate block.
Block 3. Check appropriate block.
Block 4. Enter the address of the party, corporation or organization to whom the TC, Amended
TC, PC, STC, or Amended STC will be issued.
NOTE: A post office box will not be accepted.
Block 5. Complete this block if application is for a TC or Amended TC. Leave blank if
application is for a PC, STC, or Amended STC.
Block 6. Complete parts a, b, and c of this block if application is for a PC. Give PC number if
application is for an addition to a PC. Leave blank if application is for an original PC.
Give TC/STC number if known at time of application, otherwise leave blank. Refer to
14 CFR §§ 21.45 and 21.119.
NOTE: A PC is normally not required for production of parts for an STC, they
are usually manufactured under a PMA authorization.
Block 7. Complete parts a, b, c, and d if application is for an STC.
Block 8. Obtain the signature of the certifying official. The certifying official must be the
holder or the person duly authorized to sign for the holder, company, or corporation.