N40104 — Head Balloons Inc AX9-118
Active registrationChecked against FAA & NTSB records · as of Jul 23, 2026
N40104 appears in 1 NTSB accident record (most recent 2015, serious injuries). Registration and accident data compiled from public FAA and NTSB records as of Jul 23, 2026.
Aircraft record
- Serial number
- 439
- Manufacturer
- Head Balloons Inc
- Model
- AX9-118
- Category
- Balloon
- Engine
- None None
- Registration
- Active
- Registered to
- Plank Todd N — Elizabethtown, PA
Accident & incident history
The pilot's failure to adequately secure the vent line, which resulted in the premature deflation of the balloon’s envelope and its subsequent contact with power lines. Contributing to the accident were the pilot's choice of an unsuitable landing area, which had power lines opposite the approach end, and his subsequent failure to maintain adequate clearance from the lines during the landing.
Registration timeline
Ownership and registration events for this airframe (the Head Balloons Inc AX9-118).
- Jul 13, 2023registered — Plank Todd N
Earlier aircraft on this N-number
The tail number N40104 was previously assigned to different aircraft. A registration number can be reused across unrelated airframes over decades — these are not the Head Balloons Inc AX9-118 above.
- until Jul 12, 20061975 Boeing 727-2M1 (s/n 21091)
- until May 20, 19651946 Stinson 108 (s/n 10834)
Frequently asked
- Has N40104 been in an accident?
- Yes. N40104 appears in 1 NTSB accident record, the most recent in 2015.
- What kind of aircraft is N40104?
- N40104 is a Head Balloons Inc AX9-118 (balloon), serial number 439.
- Who is N40104 registered to?
- N40104 is registered to Plank Todd N of Elizabethtown, PA. Registration status: active.
The full N40104 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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