# N28728: not currently registered

- Registered now: No (not in the FAA registry file). The mark may be reserved or free to assign
- Earlier aircraft: 1
- Last cancelled: May 25, 1984
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=28728
- Page: https://openairdocs.org/aircraft/N28728

## Aircraft that carried N28728

- [Cancelled 1984-05-25](https://openairdocs.org/deregistered/N28728-1984-05-25): Boeing 707-331B, S/N 19573, built 1968. Sale reported. Owner: [Denver, CO](https://openairdocs.org/faa-place/CO/Denver)

## FAA accident and incident reports on N28728 (2)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Incident 19810518031479I](https://openairdocs.org/incident/19810518031479I), May 18, 1981: Boeing 707* (N28728), Chicago, IL. Ze compressor stall on number 4 engine during takeoff due to defective surge bleed valve part no 28705.
- [Incident 19800106011079I](https://openairdocs.org/incident/19800106011079I), Jan 6, 1980: Boeing 707/ (N28728), Bangor, ME. Uncontrollable cabin pressure. Outflow valve jammed open.

---
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.