N4431U is a Helio H-391B (fixed wing single engine) with serial number 091, registered in South Rockwood, MI. Its FAA registration is valid and runs until Nov 30, 2029; the renewal window opens on May 30, 2029. It is one of 16 H-391B aircraft in the FAA registry, 4 of them registered in Michigan. The NTSB accident database lists one record for this airframe since 2008, the latest on Aug 18, 2025.
Registration
- FAA status
- Valid registration
- Expires
- Nov 30, 2029
- Registrant type
- Individual
- Registered owner
- Individual owner, name not shown
- Location
- South Rockwood, MI
- Local FAA office (FSDO)
- East Michigan FSDO (EMI FSDO) · (734) 487-7222
- Certificate issued
- Mar 31, 1997
- Last FAA action
- Sep 15, 2023
- Mode S code (hex)
- A55850
- Mode S code (octal)
- 51254120
- Official record
- registry.faa.gov
Aircraft
Public airports near South Rockwood
| Airport | ID | Distance | Tower | Fuel |
|---|---|---|---|---|
| Buzzwick Carleton, MI | W87 | 6 mi | Non-towered | - |
| Grosse Ile Municipal Detroit/Grosse Ile, MI | KONZ | 6 mi | Non-towered | 100LL, A |
| Detroit Metro Wayne County Detroit, MI | KDTW | 11 mi | Towered | 100LL, A |
Straight-line distance from the registration city, from the FAA airport directory (NASR). The registry does not say where an aircraft is based.
Earlier registrations of this number
| Canceled | Aircraft | Serial | Year | Exported to | Same airframe today |
|---|---|---|---|---|---|
| Aug 16, 1972 | CESSNA 150D | 15060431 | 1964 |
NTSB accident and incident records
| Date | Place | Aircraft (as NTSB recorded it) | Damage | Highest injury | NTSB no. |
|---|---|---|---|---|---|
| Aug 18, 2025 | Monroe, MI | Helio H-391B this airframe | Substantial | None | CEN25LA325 |
From the NTSB aviation accident database (events since 2008, data through Oct 28, 2026), matched by N-number. An N-number can move between aircraft, so each row is checked against the serial number on the current registration.