Czech Sport Aircraft As PIPER SPORT accident near Holly Ridge, North Carolina, June 21, 2015
On June 21, 2015 at about 7:32 pm local time, a 2010 Czech Sport Aircraft As PIPER SPORT, registered N35EP, was substantially damaged in an accident during initial climb near Holly Ridge, North Carolina (Topsail Airpark airport). It was a personal flight under general aviation rules (Part 91). 1 person was killed. The weather was visual conditions (good weather).
The NTSB's probable cause their words, unchanged
The pilot’s failure to maintain airplane control after the cockpit canopy opened during initial climb. Contributing to the accident was the pilot’s failure to securely lock the canopy before takeoff.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- June 21, 2015 · about 7:32 pm local time
- Place
- Holly Ridge, North Carolina · Topsail Airpark · map
- Type
- Accident
- Injuries
- 1 person was killed.
- Weather
- visual conditions (good weather)
- Aircraft
- Czech Sport Aircraft As PIPER SPORT, built 2010 · all PIPER SPORTs on the register
- Registration
- N35EP · no longer on the register · serial P1001059
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
Earlier on the day of the accident, a condition inspection of the light-sport airplane had been completed, and the purpose of the flight was to relocate the airplane to its home base airport. About 1500, the pilot's wife dropped the pilot off at the airport. The temperature was in the "upper 90s," and, since the airplane was equipped with a clear cockpit canopy, it would have been hot inside of the airplane. According to the pilot's wife, it was the pilot's habit to leave the canopy up when it was hot until he was ready to depart. About 1530, the pilot called his wife from the airplane before he took off and advised her that it would take him 15 minutes to fly to the home base airport and that he would wait for her to pick him up in the air-conditioned office of the fixed-base operator (FBO) at the field. However, when she arrived at the FBO, he was not there. A search was initiated, and the airplane wreckage was found in a wooded area about 1.1 miles west of the departure airport. Recorded data downloaded from a portable GPS unit that was onboard the airplane revealed that the airplane was airborne about 1 minute before reaching a peak GPS altitude of 309 ft and a derived groundspeed of 104 knots. This was the final recorded position. Examination of the accident site and wreckage revealed that the airplane struck trees in a steep, nose-low attitude and that the pilot was ejected from the cockpit. Examination of the damage to the canopy, the cockpit sill, and the canopy locking mechanism indicated that the canopy was not closed and locked when the airplane impacted the trees. This most likely occurred due to the pilot delaying closing of the canopy due to the high temperature (as was his habit) and then forgetting to lock it. Although the airplane's Pilot's Operating Handbook advised that the canopy could not be closed in flight and that there would be no change of flight characteristics with the canopy open, it is likely that the pilot was attempting to close the canopy in flight and lost control of the airplane, which resulted in an uncontrolled descent into the trees. The pilot's four-point harness was intact and attached to its attachment fittings; however, the center buckle assembly was found unlatched. This may have been the result of the pilot forgetting to buckle the harness, or he may have unlatched it so he could reach the canopy sill and/or the latching mechanism in an attempt to close the canopy in flight. Other indicators that the pilot may have been in a hurry to get airborne due to the high temperature included his failure to arm the emergency locator transmitter, which was found in the "off" position, and to remove the ballistic recovery system activation handle safety pin with its "REMOVE BEFORE FLIGHT" flag, which was found in place. The pilot's autopsy revealed that his heart was mildly enlarged, and his coronary arteries were significantly narrowed by atherosclerotic plaques. Microscopic evaluation of heart tissue also demonstrated mild interstitial fibrosis. Toxicological testing revealed medications that were consistent with the pilot's heart disease. Although the pilot's heart disease put him at risk for physical symptoms, such as chest pain, shortness of breath, or a heart rhythm that could not produce enough blood pressure to stay awake, neither the heart disease nor his medications would have impaired his judgment or increased his risk of becoming distracted by the canopy issue. Thus, the pilot's medical conditions and medications most likely did not contribute to the cause of this accident.
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
- Miscellaneous/other during prior to flight
- Miscellaneous/other during initial climb
- Attempted remediation/recovery during initial climb
- Loss of control in flight during initial climb defining event
- Collision with terrain or object (not controlled flight into terrain) during uncontrolled descent
The NTSB's findings
- cause Personnel issues › Task performance › Use of equip/info › Aircraft control › Pilot
- cause Aircraft › Aircraft oper/perf/capability › Performance/control parameters › (general) › Not attained/maintained
- factor Aircraft › Aircraft structures › Doors › Passenger/crew doors › Incorrect use/operation
- factor Personnel issues › Task performance › Use of equip/info › Use of equip/system › Pilot
- Personnel issues › Physical › Health/Fitness › Predisposing condition › Pilot
- Personnel issues › Physical › Health/Fitness › Use of medication/drugs › Pilot
Pilot
- Certificate: private
- Ratings: single-engine land
- Flight time: 1,850 hours in all
- Medical certificate: Class 3 (with waivers/limitations)
- Seat: left
- Injury: fatal
The aircraft
- Airframe total time: 74.7 hours
- Last inspection: condition inspection, June 21, 2015
- Maximum gross weight: 1,320 lb
- Seats: 2
- Landing gear: fixed
- Engine: Rotax 912 ULS (piston); 75 hours total
The flight
- Departed from: 01NC Holly Ridge NC at 7:24 pm
- Destination: OAJ Jacksonville NC
- Flight plan: none
- Runway 21, 3,200 ft by 75 ft
Weather at the time
- Light: daylight
- Wind: from 230° at 6 knots
- Visibility: 10 statute miles
- Sky: scat at 5,000 ft
- Temperature: 93°F (34°C), dew point 72°F (22°C)
- Altimeter: 29.94 inHg
- Observation at 7:56 pm from NCA, 16 miles away
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Flight crew | 1 |
Documents from the investigation the NTSB's docket: the evidence folder behind the report
15 documents, released by the NTSB on June 26, 2017. 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.
The same docket at the NTSB · documents without a copy here are fetched from the NTSB when you open them.
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.
