Maule M-4-220C
N2077U is a Maule M-4-220C, a fixed-wing airplane with one motor with a piston engine, built in 1971. It has 4 seats. It is registered to an individual in Waupaca, Wisconsin. The registration is valid: it was issued on April 12, 2013 and expires on April 30, 2029. It holds a standard airworthiness certificate for normal, dated May 28, 1971.
Aircraft
- Maker
- Maule
- Model
- M-4-220C · all M-4-220Cs and related versions
- Serial number
- 2070C
- Type
- Fixed-wing, single engine
- Power
- Piston (reciprocating), 1 motor · Franklin 6V 350 SERIES · 235 hp
- Seats
- 4
- Year built
- 1971
- Cruising speed
- 108 mph
- Transponder code
- A1AF64 (octal 50327544)
Registration
- Status
- Valid registration
- Certificate issued
- April 12, 2013
- Expires
- April 30, 2029
- Last FAA action
- July 28, 2023
- Airworthiness
- Standard · Normal · May 28, 1971
- FAA region
- Great Lakes
- FAA record id
- 00661212
Owner as the FAA publishes it
- Name
- Unertl Ronald W
- Type
- Individual
- Address
- E1062 Whispering Pines Rd
Waupaca, WI 54981-9732
Owners can ask the FAA to withhold their name and address from public files. When they do, those fields are blank here as well. How that works.
Documents on file 0
No bills of sale, loans or other documents are indexed against this tail number.
Records check free · 1 to understand · 4 clear
The public federal record on N2077U, read the way a buyer, lender or insurer reads it: FAA registration, prior tail numbers keyed on the serial number, reuse of the tail number, recent registry filings, and the NTSB accident record under this and every earlier registration.
Valid registration to Unertl Ronald W, an individual, certificate issued April 12, 2013, expires April 30, 2029. No fractional interest recorded. [1]
Standard certificate for normal, dated May 28, 1971, consistent with the 1971 manufacture year. [1]
No earlier tail number is recorded against serial 2070C for this model in the deregistered file. [2]
No other airframe has carried N2077U according to the deregistered file. [2]
No bills of sale, loans or releases have reached the registry in recent weeks. The index covers only recent filings; older liens are in the records file. [3]
1 NTSB record under N2077U: Accident on February 15, 1999 at Prescott, AZ: no injuries, substantial damage. Details below. [4]
These live in the FAA aircraft records file (every document ever filed against the aircraft) and, for larger aircraft, the International Registry. Part of the full report.
AD compliance against the logbooks and flight-activity reconciliation are researched layers of the full report.
NTSB records 1
Aircraft on the NTSB record: Maule M-4-220C · operated under 091
The pilot's inadequate compensation for the crosswind condition, which led to a loss of directional control and an inadvertent ground loop.
Search the NTSB's CAROL system for LAX99LA133 for the docket and final report. Open CAROL
- FAA Releasable Aircraft Database, master file, file of October 2, 2026. registry.faa.gov/
- FAA deregistered aircraft file (part of the same download), file of October 2, 2026. registry.faa.gov/
- FAA document index: registry documents received in recent weeks, file of October 2, 2026. registry.faa.gov/
- NTSB aviation accident database (CAROL), records through August 27, 2026. data.ntsb.gov/carol-main-public/basic-search
This automated check reads the public federal record. Nothing here is a legal opinion, an appraisal or a statement about the aircraft's condition; a CLEAR line is a statement about the searched record, not the aircraft.
Source: FAA Civil Aviation Registry, Releasable Aircraft Database, October 2, 2026. See this record on the FAA site · This record as data