The U.S. aircraft register, updated daily
Deregistered · FAA record as of October 2, 2026
N7798R

N7798R is not currently registered. It was last assigned to an Underland/Grothe/Finstrom MMII (MUSTANG II) built in 1998. The FAA cancelled the registration on August 13, 2013. The last status on file was "sale reported, canceled". The number has been on and off the register 2 times.

N7798R is reserved by Southwest Airlines CO. since July 16, 2025. Reservation type: Fee paid. An expiration notice was issued on May 16, 2027.

Underland/Grothe/Finstrom MMII (MUSTANG II) cancelled August 13, 2013

Serial number
428R
Type
Fixed-wing, single engine · Piston (reciprocating)
Year built
1998
Last status
Sale reported, canceled
Certificate issued
—
Last FAA action
March 23, 2010
Last owner
Sale Reported (Individual)
Minneapolis, MN
Airworthiness
Experimental · Amateur built

Beech V35A cancelled February 23, 1976

Serial number
D-8895
Type
Fixed-wing, single engine · Piston (reciprocating)
Year built
—
Last status
Valid registration
Certificate issued
February 21, 1973
Last FAA action
—
Last owner
Watts Looney Nichols & Johnson INC (Corporation)
Oklahoma City, OK
Airworthiness
None on file

NTSB accident and incident record under N7798R

ERA09CA495Accident on August 29, 2009 at Lantana, FL: no injuries, substantial damage.

Aircraft on the NTSB record: Underland/Grothe/Finstrom MMII (MUST · serial 428R

The delay by both pilots to abort the takeoff resulting in a runway overrun. Contributing to the accident was the unintentional forward movement of the pilot's seat resulting in interference with the control stick.

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