Part 91 Subpart F / 91.501 large aircraft ops docs (time-sharing, interchange, joint ownership agreements)
agreements · 14 CFR 91.501(b)(4)-(6); 91.23
When you need it
Time-sharing/interchange under 91.501(b)
What the FAA does with it
91.23 filing applies (not approved), submitted by Registry + FSDO notice.
What you'll need to provide
Parties, aircraft, cost allocation
What the FSDO looks for
Inspectors evaluate submissions using FAA Order 8900.1 guidance and, for certificate holders, SAS Data Collection Tools.
- 8900.1: V3 C13 S1 Evaluate Aircraft Lease/Interchange Agreement (CHG 0, Current) | V3 C13 S6 Evaluate an Aircraft Lease Agreement for Regulatory Complian (CHG 703, Current) | V12 C3 S2 Lease Agreements, Interchange, Charter Arrangements (Include (CHG 1004, Current)
- Advisory Circulars: AC 91-37B
- DCTs: n/a - Part 91 / non-SAS
Common reasons submissions are returned
- Aircraft data (make, model, serial, N-number) inconsistent across the application, the document and the registration certificate
- Outdated revision of a referenced AC, MMEL or template
- Missing signatures, dates or revision control on each page
- Missing required attachments: Parties, aircraft, cost allocation
- Submitting to the wrong office or by the wrong method (expected: Registry + FSDO notice)
General issues drawn from the requirements above, not statistics.
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Sources: the regulations, ACs and 8900.1 sections listed above (public FAA documents). Guides explain requirements; they are not the document and not legal advice.
BizJetDocs is not affiliated with or endorsed by the FAA. Not legal advice. We cannot guarantee FAA acceptance or approval. You are responsible for the accuracy of your answers and for submitting to the FAA. Liability is limited as set out in the Terms.