The U.S. aircraft register, updated daily
Deregistered · FAA record as of October 2, 2026
N604JL

N604JL is not currently registered. It was last assigned to a Lauer John HARMON ROCKET II built in 2004. The FAA cancelled the registration on March 18, 2009. The last status on file was "triennial registration form was mailed and has not been returned by the post office".

Lauer John HARMON ROCKET II cancelled March 18, 2009

Serial number
129
Type
Fixed-wing, single engine · Piston (reciprocating)
Year built
2004
Last status
Triennial registration form was mailed and has not been returned by the Post Office
Certificate issued
July 9, 2004
Last FAA action
July 17, 2007
Last owner
Lauer John E (Co-owned)
Bakersfield, CA
Airworthiness
Experimental · Amateur built

NTSB accident and incident record under N604JL

LAX07LA054Accident on December 9, 2006 at Bakersfield, CA: fatal, destroyed (2 fatal).

Aircraft on the NTSB record: John Lauer Harmon Rocket II · serial 129

The pilot's failure to maintain terrain clearance during an aerobatic maneuver.

A tail number passes between aircraft over the years; match the serial number on the NTSB record against the airframe above. Source: NTSB aviation accident database, records through September 30, 2026.

Source: FAA Civil Aviation Registry, Releasable Aircraft Database, October 2, 2026. See this number on the FAA site