GAA18CA573
2018-09-20 · Frankfort, Kansas, United States · None · 1 aircraft · Status: Completed
Current FAA registration · N1349A
- Make / Model
- HILLER UH-12E
- Engine
- AMA/EXPR UNKNOWN ENG
- Seats / Engines
- 4 seats · 1 engine
- Last airworthiness date
- 19990309
- ADS-B equipped
- Yes — Mode-S A08DA1
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
The ground crewmember's improper grabbing of the hovering helicopter's skid during an external load hook-up, which resulted in the helicopter descending and the main rotors striking ground equipment.
Factual narrative
The pilot in the skid-equipped helicopter reported that he established a hover over a seeding bucket, so that the bucket could be attached to the helicopter's cargo hook by the ground crew. One of the ground crewmembers grabbed the skid while trying to connect the bucket, and the helicopter descended. The main rotor blades struck the auger on the seed tender. The helicopter came to rest upright, on top of a grass bale in front of the seed tender. The helicopter sustained substantial damage to the main rotor and the tail rotor drive systems. The pilot reported that there were no mechanical malfunctions or failures with the helicopter that would have precluded normal operation. The pilot in the skid-equipped helicopter reported that he established a hover over a seeding bucket so that the ground crew could attach the bucket to the helicopter's cargo hook. One of the ground crewmembers grabbed the skid while trying to connect the bucket, and subsequently, the helicopter descended, which resulted in the main rotor blades striking ground equipment. The helicopter subsequently came to rest upright on top of a grass bale in front of the equipment. The helicopter sustained substantial damage to the main rotor and tail rotor drive systems. The pilot reported that there were no mechanical malfunctions or failures with the helicopter that would have precluded normal operation. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12
NTSB Findings
FAA avdata. C = Cause, F = Factor.
- C Personnel issues-Action/decision-Action-Incorrect action performance-Ground crew - C
- C Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Altitude-Attain/maintain not possible - C
- C Environmental issues-Physical environment-Object/animal/substance-Ground equipment-Effect on operation - C
Verbatim from NTSB's published report. Source file
NTSB_2018_GAA18CA573.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
Search this event elsewhere
External sources are reported, not agency: signal that something happened, not fact about what happened.
- TallyAero Live Wire Aviation press
- NTSB CAROL Agency ↗
- NTSB Docket Agency ↗
- Aviation Safety Network Aviation press ↗
- Kathryn's Report Aviation press ↗
- Aviation Herald Aviation press ↗
- AVweb Aviation press ↗
- Pilots of America Community ↗
- Reddit /r/flying Community ↗
- FlightAware Aviation press ↗
- AOPA accident database Aviation press ↗
- Google News News ↗
- DuckDuckGo News ↗