# N4526P: 1991 Head Balloons AX7-77, registration cancelled 2013-08-28

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: August 28, 2013
- Status when cancelled: First renewal notice
- Airframe: [Head Balloons AX7-77](https://openairdocs.org/model/head-balloons-ax7-77) (registry code 4280100)
- Engine: [NONE](https://openairdocs.org/engine/none) (registry code 00000)
- Data sheets: [TCDS A29SO](https://openairdocs.org/tcds/A29SO) (OpenAirDocs)
- Serial number: 175
- Year built: 1991
- Type of aircraft: Balloon
- Engine type: None
- Airworthiness: Standard, balloon
- Airworthiness date: February 17, 1991
- Certificate issued: February 28, 1991
- Last registry action: December 15, 2009
- Mode S code: A57CC2
- Owner when cancelled: [Polonowski Charles E](https://openairdocs.org/faa-owner/POLONOWSKI%20CHARLES%20E)
- Location: [Rockford, MI](https://openairdocs.org/faa-place/MI/Rockford)
- Owner type: Individual
- Owner's area on the map: 43.1241° N, 85.4909° W: Placed by OpenAirDocs at the center of ZIP code 49341, within about 5 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N4526P
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4526P
- Page: https://openairdocs.org/deregistered/N4526P-2013-08-28

From the FAA registry file of October 29, 2026, cancelled registrations. Owners' street addresses are left out. The Mode S code belongs to the N-number, not the airframe.

ADs and bulletins for the Head Balloons AX7-77: https://openairdocs.org/model/head-balloons-ax7-77.md

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.
