ERA15LA319 · Head AX9 118
Head AX9 118 · Accident: loss of control on ground while standing
From Intercourse, PA to New Holland, PA
Event
- NTSB case
- ERA15LA319
- Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
- Accident
- InvestigationHow far the investigation had got when the record was published: preliminary, ongoing, final or completed. Unknown where the source does not say. Glossary
- Completed
- API-reported fatalities
- 0 · all aircraft and ground
- Ground fatalities
- Unknown
- OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
- General aviation
- WeatherVisual meteorological conditions (VMC): good enough to fly by looking outside. Instrument conditions (IMC): cloud or low visibility, flying by instruments. Glossary
- Visual Meteorological Cond
Head AX9 118
- Aircraft type
- Head AX9
- Category
- Balloon
- RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
- N40104
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Intercourse, PATo New Holland, PA
- Aircraft age
- About 1 year (built 2014)
- Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
- Part 91: General Aviation
- Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
- Standing
- Defining eventThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
- Loss of control on ground
- Also codedOther events the NTSB coded in the sequence, such as a wire strike after a loss of power. Flight Findings uses them for its kinds of event. Glossary
- Wire
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- Minor
Cause areas
- Aircraft › Aircraft oper/perf/capability
- Personnel issues › Psychological
- Personnel issues › Task performance
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
The commercial pilot reported that he chose to land the balloon about 45 minutes into the planned 1-hour flight because sunset was approaching. The pilot chose an approximate 150-ft wide, 500 ft-long field for the landing. The pilot advised the ground crew, who were in radio and visual contact, of the intended landing zone, and he was aware of the power lines opposite the approach end of the field. During the final approach to the field, the basket grazed several rows of corn. It then struck the ground and bounced along it for about 50 ft before the ground crew was able to grab the basket and stop it.
The pilot then began the shutdown procedures, and the ground crew informed him that the envelope was deflating prematurely. The pilot then noted that the vent line, which was normally secured to the basket, had loosened from its anchoring point and gotten caught between the ground and the basket during the landing sequence, allowing the envelope to deflate. He pulled the vent line free, but the envelope continued to collapse as the wind blew it toward the power lines; the basket remained stationary with the passengers still inside. The top third of the envelope draped over the power lines, which resulted in electrocution-related injuries to the passengers and pilot.
Probable cause
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.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record ERA15LA319
- Event ID
- 20150818X05411
- Case number
- ERA15LA319
- Dataset
- full-current
- Source SHA-256
- 5cf380f0061817c0331a6b2d8cc7e0ee3a79bea469a1001dc5c10e56f35f5ab3
Source notes (4)
- Unreviewed is an editorial label, not an investigation status. API-sourced is not report-checked or human-reviewed. Explicit event totals are used without summing aircraft injury tables; onboard allocation is withheld. Unknown values remain unknown. The operation category is mapped from the NTSB-reported FAR part and has not been reviewed.
- Filled from the NTSB case API where the bulk record had no value: local date, investigation status. Values present in the bulk record are kept.
- The date is the local date; the NTSB stores the UTC date 2015-08-16.
- API snapshot SHA-256: 78dd451a198ae1e2c7b29d99733195025c1bc186e7890737e249f33a781f18c0; retrieved 2026-09-16T02:41:03.459Z.