Aircraft model · Balloon · Balloon · registry code 4280100

Manufacturer (registry)
HEAD BALLOONS INC
Model
AX7-77
Registry code
4280100
Registered
35 aircraft
Type
Balloon
Engines
None
Seats
4
Weight class
Up to 12,499 lb
Certification
Type certificated
Data sheet
TCDSA29SO
Holder
Head Balloons Inc.

Model codes come from the FAA registry’s reference file. ADs are matched to them by model name and maker.

On this page

Aircraft by year built · 49

1983Registered nowDeregistered2026
Aircraft by the year they were built: 49 aircraft
19831
19843
19855
19863
19874
19882
19901
19912
19921
19931
19941
19952
19961
19972
19993
20011
20021
20041
20071
20081
20091
20101
20112
20132
20152
20202
20221
20231

Airworthiness directives that may apply · 2

ADs whose products match this airframe model. Each AD’s applicability may narrow it by serial number, part number or configuration.

2008In forceSuperseded2026
ADs by the year they took effect: 2 ADs
20081
20131
Query with SQL
duckdb -csv -c "SELECT d.ad_number, d.status, d.subject, d.effective_date
  FROM 'https://openairdocs.org/data/latest/faa_directive.parquet' d
  WHERE d.ad_id IN (SELECT ad_id FROM 'https://openairdocs.org/data/latest/faa_aircraft_model_directive.parquet' WHERE aircraft_model_code IN ('4280100'))
  ORDER BY coalesce(d.effective_date, d.publication_date, d.issue_date) DESC, d.ad_number DESC"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

Information bulletins that may apply · 1

Query with SQL
duckdb -csv -c "SELECT s.saib_number, any_value(s.title) AS title, max(s.issue_date) AS issue_date, any_value(s.status) AS status
  FROM 'https://openairdocs.org/data/latest/faa_saib.parquet' s
  WHERE s.saib_id IN (SELECT saib_id FROM 'https://openairdocs.org/data/latest/faa_aircraft_model_saib.parquet' WHERE aircraft_model_code IN ('4280100'))
  GROUP BY s.saib_number ORDER BY issue_date DESC"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

Registered aircraft · 35

See all 35 registered aircraft
Query with SQL
duckdb -csv -c "SELECT n_number, serial_number, year_manufactured, status, registrant_name, registrant_city, registrant_state
  FROM 'https://openairdocs.org/data/latest/faa_aircraft_registration.parquet'
  WHERE aircraft_model_code IN ('4280100')
  ORDER BY n_number"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

NTSB investigations · 2

Aircraft matched to this model through the registry, by N-number and event date, checked against the reported serial number, make and model.

First occurrence, 1982 to 2007

Of 2 cases with NTSB’s older coding, defined in its coding manual.

Query with SQL
duckdb -csv -c "SELECT c.\"ntsbNumber\", c.\"eventDate\", c.\"eventType\", c.\"eventCity\", c.\"eventStateOrRegion\", a.n_number, a.\"aircraftMake\", a.\"aircraftModel\", c.\"highestInjuryLevel\", c.\"totalFatal\", c.\"completionStatus\", c.report_url
  FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a JOIN 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c ON c.\"mKey\" = a.case_mkey
  WHERE a.aircraft_model_code IN ('4280100')
  ORDER BY c.\"eventDate\" DESC, c.\"ntsbNumber\" DESC"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

FAA incident reports · 10

Matched to this model through the registry, by N-number and event date, checked against the reported make and model.

Accident 20080809842739AThundr AX777 · Maysville, KY(-23) During the buffalo trace ballon race N2083K came in contact with a tree limb during landing and ripped the envelope along 4 panels causing minor damage to the balloon. Pilot indicated that he was trying to avoid other aircraft during landing. He thought…Aug 9, 2008 · N2083K · Minor damageIncident 20000206003329IThundr AX777 · Simpsonville, SCPilot in command was making a normal approach for landing when the wind shifted and blew the sircraft into an antenna tower. The PIC attempted to use the aircraft burners to free the aircraft from the tower but was unable due to the restrictions of the guy…Feb 6, 2000 · N8305X · Minor damageIncident 19990528038009IThundr AX777 · Anderson, SC(-23) While attempt to land, the balloon encountered an unforecasted wind and turbulence. This turbulence was encountered at approximately 50 feet AGL. The balloon landed hard. The pilot and passenger were thrown from the basket. The pilot held on to the vent…May 28, 1999 · N7005J · Minor damageIncident 19971009036589IThundr AX777Dragged basket accross residential roof landing. Low fuel a factor.Oct 9, 1997 · N193CMIncident 19960817039139IThundr AX777 · Katy, TXNarrative: both pilot lights failed to operate. Pilot made an emergency landing on golf course. During the descent the balloon made contact with a house [privacy data omitted] no damage to balloon minor damage to house. No injuries to pilot or persons on…Aug 17, 1996 · N8306AAccident 19940625048539AThundr AX777 · West Chicago, ILBalloon oscillated prior impacting a dirt mound on landing a passenger fractured an ankle.Jun 25, 1994 · N21WRIncident 19940109006999IThundr AX777 · Chillicothe, OHNarrative: pilot contacted no less than three FAA facilities asking if R-5503A was going to be active because the sectional chart shows normal days of operation is Monday thru Saturday. In each case he was told R-5503A would be "hot" at 0930L. The actual…Jan 9, 1994 · N7005HIncident 19930701027809IThundr AX777 · Mesquite, TXPilot told passengers to prepare for hard landing. Passenger moved just before landing. Catapulated out of basket.Jul 1, 1993 · N1984JIncident 19881106063579IThundr AX777 · Hughes, ARBalloon dragged across field and envelope draped over electric line on a gusty landing. No injuries.Nov 6, 1988 · N31DG · Minor damageAccident 19840901071489AThundr AX777 · Austell, GATried to rise above wires on aborted landing then pulled deflation panel. Passenger used burner. Balloon hit wire.Sep 1, 1984 · N2484S · Destroyed
Query with SQL
duckdb -csv -c "SELECT report_number, event_date, event_type, city, state, aircraft_make, aircraft_model, aircraft_damage, fatal_injuries, n_number
  FROM 'https://openairdocs.org/data/latest/faa_incident_report.parquet'
  WHERE aircraft_model_code IN ('4280100')
  ORDER BY event_date DESC, report_number DESC"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

Service difficulty reports

No reports name this modelGeneral aviation reporting is voluntary.

STCs that may be installed · 10

Approved for this model: the STC’s model list names it on its data sheet, or a series that includes it. The registry doesn’t record which STCs an aircraft has.

Query with SQL
duckdb -csv -c "SELECT s.stc_number, s.description, s.holder, s.status, s.status_date, m.matched_model
  FROM (
    SELECT stc_number, min(matched_model) AS matched_model
    FROM 'https://openairdocs.org/data/latest/faa_aircraft_model_stc.parquet'
    WHERE aircraft_model_code IN ('4280100')
    GROUP BY stc_number
  ) m JOIN 'https://openairdocs.org/data/latest/faa_stc.parquet' s USING (stc_number)
  ORDER BY s.status = 'Current' DESC, s.status_date DESC, s.stc_number"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

The same model under other registry codes

Amateur-built copies and renamed makers get their own codes.

Query with SQL
duckdb -csv -c "SELECT m.code, m.manufacturer, m.model, count(g.n_number) AS aircraft
  FROM 'https://openairdocs.org/data/latest/faa_aircraft_model.parquet' m LEFT JOIN 'https://openairdocs.org/data/latest/faa_aircraft_registration.parquet' g ON g.aircraft_model_code = m.code
  WHERE m.match_key = 'AX777' AND m.code NOT IN ('4280100')
  GROUP BY ALL
  ORDER BY aircraft DESC
  LIMIT 12"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.