Single-engine piston

N904BF

Homebuilt RV4

Registered No accidents on file
Built
—
Serial
3630
Class
Single-engine piston
Engines
Continental IO-360-A
Status
Current as of October 2026
Registered owner
Grandbear Air LLC (LLC)
Based
Mountain Green, UT
Registration record

N904BF on the FAA register

Type
Homebuilt RV4
Serial
3630
Engines
Continental IO-360-A
Registered owner
Grandbear Air LLC
Mountain Green, UT
Certificate issued
2021-05-05
Airworthiness date
2008-05-23
Registration expires
2028-05-31
Airworthiness class
Experimental · amateur-built
Mode S (hex)
AC7E27
Mode S (octal)
53077047
Seats (type)
2
Weight class
up to 12,499 lb
Status
Current as of October 2026
Registry history

Timeline

  • 2028-05-31
    Registration expires (renewal due).
  • 2021-05-05
    Certificate of registration issued as N904BF.
  • 2008-05-23
    Airworthiness date on the current FAA record (experimental category (amateur-built)).
Overview

About N904BF

N904BF is a Homebuilt RV4, serial number 3630. The FAA register lists Grandbear Air LLC as the registrant in Mountain Green, Utah. The current certificate of registration was issued on May 5, 2021 and expires on May 31, 2028.

The FAA aircraft reference file describes the type as a single-engine piston, one Continental IO-360-A engine and 2 seats. Its airworthiness certificate is experimental category (amateur-built), dated May 23, 2008.

No NTSB accident or incident reports and no FAA preliminary notices are on file for N904BF.

Safety record

Accident & incident history

✓ No NTSB accident or incident reports and no FAA preliminary notices on file for N904BF.

Sources: NTSB aviation accident database and CAROL case system, FAA preliminary accident & incident notices. Search accident records

Same state

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Browse: Aircraft registered in Utah· Registry by state· FAA registry stats

Data: FAA Aircraft Registry (October 2026), including deregistered aircraft; NTSB and FAA accident data; fyiAero listing history. Individual owners' names are shown to signed-in users and street addresses are never shown. Type figures are published specifications, not this aircraft's.