Eipper Formance INC MXII accident near Holy Hill, South Carolina, August 9, 2023
On August 9, 2023 at about 11:30 pm local time, a 2007 Eipper Formance INC MXII, an amateur-built aircraft,, registered N1624Z, was substantially damaged in an accident during initial climb near Holy Hill, South Carolina (Holly Hill airport). It was a personal flight under general aviation rules (Part 91). 1 person was seriously injured. The weather was visual conditions (good weather).
The NTSB's probable cause their words, unchanged
The pilot’s exceedance of the critical angle of attack during the initial climb, which resulted in an aerodynamic stall at low altitude and a collision with a hangar. Contributing to the accident was the pilot’s lack of experience in the accident make and model airplane.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- August 9, 2023 · about 11:30 pm local time
- Place
- Holy Hill, South Carolina · Holly Hill · map
- Type
- Accident
- Injuries
- 1 person was seriously injured.
- Weather
- visual conditions (good weather)
- Aircraft
- Eipper Formance INC MXII NO SERIES, built 2007, amateur-built
- Registration
- N1624Z · registry record · serial 1764
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
The pilot reported that the accident flight was his first flight in this make and model airplane, and he planned to complete a few high-speed taxi runs before deciding to takeoff. During the first high-speed taxi attempt, the pilot lifted the nose wheel up, and after riding on the rear wheels he increased engine power to “slightly lift off”; however, the airplane quickly climbed to 30 or 40 feet above ground level within a few seconds. Subsequently, the pilot reduced power to land, but the airplane immediately entered an aerodynamic stall and rolled to the left. The airplane continued to descend and impacted a hangar which resulted in substantial damage to the fuselage and wings. The pilot reported that there were no preimpact mechanical malfunctions or failures with the airplane that would have precluded normal operation. He further added that he was unfamiliar with the airplane.
The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.
The factual record from the NTSB's investigation tables, in plain English
What happened, in order
- Aerodynamic stall/spin during initial climb
- Loss of control in flight during initial climb defining event
- Collision with terrain or object (not controlled flight into terrain) during initial climb
The NTSB's findings
- Personnel issues › Task performance › Use of equip/info › Aircraft control › Pilot
- Personnel issues › Experience/knowledge › Experience/qualifications › Total experience w/ equipment › Pilot
- Aircraft › Aircraft oper/perf/capability › Performance/control parameters › Angle of attack › Capability exceeded
Pilot
- Certificate: private
- Ratings: single-engine land
- Flight time: 243 hours in all; 0 in this make and model; 32 in the last 90 days; 9 in the last 30 days; 180 as pilot in command; 0 on instruments
- Last flight review: July 21, 2022
- Medical certificate: Class 3 (without waivers/limitations)
- Seat: left
- Injury: serious injuries
The aircraft
- Last inspection: inspection type not recorded
- Maximum gross weight: 525 lb
- Seats: 2
- Landing gear: fixed
- Engine: Rotax 582 (piston); 76 hours total
The flight
- Flight plan: none
- Runway 4-22, 3,900 ft by 75 ft
Weather at the time
- Light: daylight
- Wind: from 200° at 4 knots
- Visibility: 10 statute miles
- Sky: clear
- Temperature: 82°F (28°C), dew point 73°F (23°C)
- Altimeter: 29.94 inHg
- Observation at 7:53 pm from OGB, 25 miles away
Weather report (METAR): KOGB 092353Z AUTO 20004KT 10SM CLR 28/23 A2994 RMK AO2 SLP134 T02780228 10322 20278 53006
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Flight crew | 1 |
Documents from the investigation the NTSB's docket: the evidence folder behind the report
3 documents, released by the NTSB on December 13, 2023. View them here, or download them; the NTSB redacts some personal details before release, and this site shows the NTSB's own titles rather than its file names.
| # | Document | What it is | |
|---|---|---|---|
| 1 | Pilot/operator Aircraft Accident Report, NTSB Form 6120.1 | PDF, 11 pages | View Download |
| 2 | Memorandum for Record - Pilot Statement | PDF, 1 page | View Download |
| 3 | Investigation Photos | PDF, 4 pages | View Download |
The same docket at the NTSB · documents without a copy here are fetched from the NTSB when you open them.
Other NTSB records under N1624Z the same tail number, which may have belonged to a different aircraft at the time
Everything on this page comes from the NTSB's public records. The narrative, probable cause and findings are the NTSB's own words; the coded tables behind the report are written out in plain English, with pilots' ages, home towns and medical details left out. The documents and photographs are the NTSB's docket, shown as the NTSB released them. This site's own text never names anyone involved. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.