N789UP — Thunder Balloons Limited AX7-77A
DeregisteredChecked against FAA & NTSB records · as of Jul 18, 2026
N789UP appears in 1 NTSB accident record (most recent 2015, 7 fatalities). Registration and accident data compiled from public FAA and NTSB records as of Jul 18, 2026.
Aircraft record
- Serial number
- 081
- Manufacturer
- Thunder Balloons Limited
- Model
- AX7-77A
- Category
- Balloon
- Registration
- Deregistered
Accident & incident history
The pilot's failure to maintain control of the airplane during the instrument approach in night instrument meteorological conditions, which resulted in the airplane exceeding its critical angle of attack and an aerodynamic stall/spin. Contributing to the accident were pilot fatigue, the pilot's increased workload during the instrument approach resulting from the lack of glideslope guidance due to an inadequately connected/secured glideslope antenna cable, and the airplane being loaded aft of its balance limit.
Registration timeline
Ownership and registration events for this airframe (the Thunder Balloons Limited AX7-77A).
- —deregistered
Earlier aircraft on this N-number
The tail number N789UP was previously assigned to a different aircraft. A registration number can be reused across unrelated airframes over decades — these are not the Thunder Balloons Limited AX7-77A above.
- until Mar 6, 20181980 Cessna 414A (s/n 414A0495)
Frequently asked
- Has N789UP been in an accident?
- Yes. N789UP appears in 1 NTSB accident record, the most recent in 2015.
- What kind of aircraft is N789UP?
- N789UP is a Thunder Balloons Limited AX7-77A (balloon), serial number 081.
- Has N789UP been in a fatal accident?
- An NTSB record for N789UP (CEN15FA190) is classified with a fatal highest injury level.
The full N789UP report
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- Full NTSB investigation narratives for all 1 record — the complete text, not just the cause line
- Pre-buy question list generated from this aircraft’s actual records
- Complete registration & deregistration timeline, print-ready
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