Cessna 172 accident near Broomfield, Colorado, May 11, 2022
On May 11, 2022 at about 6:35 pm local time, a 1977 Cessna 172, registered N73670, was destroyed in an accident during approach (VFR pattern final) near Broomfield, Colorado (Rocky Mountain Metro 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 control of the airplane for reasons that could not be determined.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- May 11, 2022 · about 6:35 pm local time
- Place
- Broomfield, Colorado · Rocky Mountain Metro Airport · map
- Type
- Accident
- Injuries
- 1 person was killed.
- Weather
- visual conditions (good weather)
- Aircraft
- Cessna 172 N, built 1977 · all 172s on the register
- Registration
- N73670 · no longer on the register · serial 17267604
- Damage
- Destroyed
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
Flight track data indicated that the pilot was returning to the departure airport. The pilot had flown to a nearby airport and then performed several flight maneuvers in a nearby practice area. He performed a touch and go landing and then remained in the traffic pattern. The air traffic controller instructed the pilot to widen his downwind leg, due to traffic, and changed the landing runway to the parallel runway. The pilot performed a right turn to the base leg, and after the airplane was established on final, it abruptly turned to the north and descended rapidly. The airplane impacted an intersection about ½ nautical mile (nm) northwest of the approach end of the runway. The airplane impacted the ground and a traffic light pole and came to rest on a sidewalk. A postimpact fire ensued and the airplane was destroyed. Two witnesses reported that the airplane was not in an aerodynamic stall or spin. One witness reported that the airplane appeared to be in a “gentle” left-hand turn and descent, with about 15-20° of bank. They did not observe any flight control movements, nor was there any smoke or fire from the airplane. There were no abnormal engine noises, and the airplane was structurally intact while in flight. A review of local area security camera footage showed the airplane established on final approach. The airplane then turned abruptly to the north and descended rapidly before it impacted the ground. Postaccident examination revealed no preimpact mechanical malfunctions or failures with the airframe or engine that would have precluded normal operation. A review of meteorological data showed that low-level windshear was possible. Additionally, the estimated density altitude at the airport was 8,578 ft above msl at the time of the accident. However, based on the witness statements and the security camera footage, neither windshear nor the high density altitude appeared to play a role in the airplane’s sudden departure from the approach path. The reasons for the loss of control in flight could not be determined.
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
- Loss of control in flight during approach (VFR pattern final) defining event
- Unknown or undetermined during approach (VFR pattern final)
- Collision with terrain or object (not controlled flight into terrain) during approach (VFR pattern final)
The NTSB's findings
- Personnel issues › Task performance › Use of equip/info › Aircraft control › Pilot
- Not determined › Not determined › (general) › (general) › Unknown/Not determined
Pilot
- Certificate: private
- Ratings: single-engine land; instrument: airplane
- Flight time: 220 hours in all; 114 as pilot in command
- Last flight review: May 5, 2022
- Medical certificate: Class 3 (without waivers/limitations)
- Seat: left
- Injury: fatal
The aircraft
- Airframe total time: 4,800.7 hours
- Last inspection: 100-hour inspection, April 26, 2022
- Maximum gross weight: 2,300 lb
- Seats: 4
- Landing gear: fixed
- Engine: Lycoming Engines O-320-H2AD (piston); 0 hours total
- Fire on the ground
The flight
- Flight plan: none
- Runway 12L, 9,000 ft by 100 ft
Weather at the time
- Light: daylight
- Wind: from 220° at 13 knots, gusting 23
- Visibility: 10 statute miles
- Sky: scat at 24,000 ft
- Temperature: 84°F (29°C), dew point 19°F (-7°C)
- Altimeter: 29.90 inHg
- Observation at 12:38 pm from KBJC, 1 miles away
Weather report (METAR): KBJC 111838Z 22013G23KT 10SM SCT240 29/M07 A2990 RMK AC ACCIDENT
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Flight crew | 1 |
Documents from the investigation the NTSB's docket: the evidence folder behind the report
21 documents, released by the NTSB on August 15, 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.
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.
