52-28-01: Fuel Transfer Placard
FAA order 52-28-01 is an airworthiness directive. The FAA's subject line: Fuel Transfer Placard. It names Aeronca S11: about 9 aircraft on the U.S. register today, though an order usually covers particular versions or serial numbers rather than every one. System: other and general.
What it applies to as the FAA lists it
- Kind of product
- Aircraft
- Makes
- American Champion Aircraft Corp.
- Models
- 11AC, S11AC
- On this site
- Aeronca S11 9 registered
Dates and paperwork
- Docket
- Unknown
- Status
- Current
- The FAA's document
- Read the order on the FAA's site
The order itself the regulatory text, as published
Show the full text (730 characters)
52-28-01 AERONCA: Applies to All Model 11AC and S11AC Aircraft Equipped With the Auxiliary Fuel Tank Installation.
Compliance required not later than January 31, 1953.
Accidents have occurred in the above model aircraft due to misuse of the fuel transfer system. These accidents have been caused by pilots attempting to transfer fuel while taking off or in a climb attitude. To preclude the possibility of pilot error with regard to the foregoing, the following placard, or its equivalent, shall be displayed near the fuel transfer system shutoff valve and in view of the pilot: "Transfer fuel in level flight or glide only and when main tank is half full or less. Valve is to be closed except while transferring fuel."
Related safety bulletins advice on the same designs, not orders
2007-08-24CE-07-45 · Flight Controls
Source: FAA Dynamic Regulatory System, airworthiness directives. The FAA's document is the authority; the register counts are this site's, from the FAA register of October 5, 2026. Connections as data: /graph/directive/52-28-01.json · aircraft systems.