NTSB CAROL · Event
Event GAA16CA216
Registry · N528PG
FAA Aircraft Registry record.
Make / Model
AIRBORNE REDBACK
Year of manufacture
2002 · 14 years old at event
Engine
ROTAX 503 DCDI (52 hp)
Seats / Engines
2 seats · 1 engine
Last airworthiness date
20070516
ADS-B equipped
Yes — Mode-S A6A7F2
Registrant of record
HARMSWORTH COLIN C
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
The pilot's failure to adequately secure the aircraft while manually starting the engine from outside the cockpit, which resulted in the unmanned aircraft becoming airborne and colliding with a hangar roof.
Factual narrative
According to the pilot of the weight shift controlled trike, he had spent several hours trying to start the trike on the previous day without success. He recalled that on the morning of the accident, with the ignition off, he sprayed ether into each of the carburetors and pulled several times on the engine's starter cord. He reported that he then turned on the ignition, pulled the starter cord once, the engine started and the trike accelerated forward. He recalled that the trike rolled over the chalks that were in front of the wheels, drug him for about 100 feet before he released the cord, and the trike became airborne. The trike was airborne for several seconds before impacting the rooftop of a hangar and sustaining substantial damage to the wing keel and the control bar. The pilot reported that there were not any pre-accident mechanical failures or anomalies with the trike that would have precluded normal operation prior to the accident. The pilot reported that in hind sight, he should have placed the hand throttle to idle before pulling the cord. According to the pilot of the weight shift controlled trike, he had spent several hours trying to start the trike on the previous day without success. He recalled that on the morning of the accident, with the ignition off, he sprayed ether into each of the carburetors and pulled several times on the engine's starter cord. He reported that he then turned on the ignition, pulled the starter cord once, the engine started and the trike accelerated forward. He recalled that the trike rolled over the chalks that were in front of the wheels, drug him for about 100 feet before he released the cord, and the trike became airborne. The trike was airborne for several seconds before impacting the rooftop of a hangar and sustaining substantial damage to the wing keel and the control bar. The pilot reported that there were not any pre-accident mechanical failures or anomalies with the trike that would have precluded normal operation prior to the accident. The pilot reported that in hind sight, he should have placed the hand throttle to idle before pulling the cord. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12
NTSB Findings
Hierarchical cause / factor breakdown from the FAA bulk avdata database. Each finding tagged C (Cause) or F (Factor).
- C Personnel issues-Task performance-Use of equip/info-Aircraft control-Pilot - C
- C Aircraft-Aircraft power plant-Engine starting-(general)-Incorrect use/operation - C
- C Personnel issues-Action/decision-Action-Incorrect action sequence-Pilot - C
- — Environmental issues-Physical environment-Object/animal/substance-Airport structure-Contributed to outcome
Verbatim from NTSB's published report. Source file
NTSB_2016_GAA16CA216.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
Beyond the agency record
Search this event elsewhere.
Pre-filled searches into the sources where news + community discussion of aviation events lives. External sources are reported, not agency. Treat them as signal that something happened, not as fact about what happened.
Entity-clustered aviation events in the press — last 24 hr + 30-day archive.
Official agency record + docket.
Investigative docket: factual reports, photos, transcripts.
Long-running aviation incident database (Flight Safety Foundation).
Community NTSB synthesis blog — often has photos and witness reports.
Gold-standard aviation incident blog.
Aviation industry news search.
GA pilot forum — informed but rumor-prone.
GA pilot subreddit search.
Tail-number page — flight history (free tier limited).
AOPA Air Safety Institute search.
Mainstream press coverage. Recent events only.
Privacy-preserving news search.
External links open in a new tab. We don't ingest their content; we deep-link search queries.