- Date
- March 10, 2025, 18:30 local (23:30 UTC)
- Place
- Chicago, IL
- Injuries
- 3 uninjured
- Damage
- Substantial damage
- Phase of flight
- Enroute
- Aircraft
- N128AFRobinson Helicopter R44 II
- Defining event
- Enroute-cruise: Unknown or undetermined
- Weather
- Visual (VMC) · Dusk
- Status
- Investigation ongoing
- Investigation class
- Class 3
- NTSB office
- Central Region
- Parties
- FAA
- Case key
- 199828
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Preliminary report
What NTSB knew early in the investigation. It may change in the final report.
On March 10, 2025, about 18:30 central daylight time, a Robinson Helicopter R44 II, N128AF was substantially damaged when it was involved in an accident near Chicago, Illinois. The pilot and both passengers were not injured. The helicopter was operated under the provisions of Title 14 Code of Federal Regulations Part 91 sightseeing flight. The helicopter departed Lansing Municipal Airport (IGQ), Lansing, Illinois about 17:45. The pilot stated that they flew north, about 25 nm, along the Lake Michigan shoreline to Navy Pier, and then proceeded south back towards IGQ at an altitude of about 1,000 ft above ground level. About 4 nm south of Navy Pier, the pilot reported that the helicopter clutch light came on but only for about 5 seconds. Shortly after, the pilot said he could smell burning rubber and then the clutch light illuminated again. He pulled the clutch circuit breaker and was preparing to land as soon as practical when the tail section of the helicopter began to vibrate and then he heard a loud bang. The pilot autorotated the helicopter to an open area on a golf course. The pilot and both passengers exited the helicopter uninjured. After landing, the pilot inspected the helicopter and discovered that the tail boom was substantially damaged because of the autorotation. The helicopter was transported to a secure location for further examination.
Sequence of events
The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.
Aircraft
- Registration
- N128AF
- Reported as
- Robinson Helicopter R44 II
- Category
- Helicopter
- Serial number
- 11475
- Built
- 2006
- Damage
- Substantial damage
- Flight
- Business · Part 91
- Operator
- Summerskyz Inc
- Registered owner
- Summerskyz Inc
- Departed
- IGQ · Lansing, IL
- Airport
- IGQ · Lansing Municipal
Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
Weather
- Conditions
- Visual (VMC) · Dusk
- Wind
- 210° at 11 knots, gusting 19
- Visibility
- 10 statute miles
- Lowest ceiling
- 25,000 ft broken
- Temperature
- 64 °F, dew point 32 °F
- Altimeter
- 29.61 inHg
- Observed at
- KORD, 19 nm away
- METAR
- KORD 102351Z 21011G19KT 10SM BKN250 18/00 A2961