# Accident 20250517006049A: Beech 95-B55 (T42A), Boulder, CO, May 17, 2025

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: May 17, 2025, 10:05 local time
- Place: Boulder, CO
- Airport: Rocky Mountain Metropolitan
- Damage: Destroyed
- Phase of flight: Takeoff: Rotation
- Operating rules: General operating rules (Part 91)
- Location: 39.9343° N, 105.1168° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=39.9343&lon=-105.1168&mi=10
- Aircraft: N4321Z, a cancelled registration (https://openairdocs.org/deregistered/N4321Z-2025-10-07) (OpenAirDocs)
- Registry model: Beech 95-B55 (T42A) (registry code 1152706, https://openairdocs.org/model/beech-95-b55-t42a) (OpenAirDocs)
- Registry engine: Continental I0-470 series (registry code 17027, https://openairdocs.org/engine/continental-i0-470-series) (OpenAirDocs)
- Reported make and model: BEECH 95-B55 (T42A)
- Reported engine: CONT MOTOR I0-470 SERIES
- People aboard: 2
- Fatal injuries: 2
- Other injuries: 0
- Pilot certificates: Commercial pilot
- Pilot flight hours: 2,029 total, 1,459 in this make and model
- NTSB investigation: [NTSB CEN25FA178](https://openairdocs.org/ntsb/CEN25FA178) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20250517006049A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

ON MAY 17, 2025, A BEECHCRAFT, MODEL 95-55 (T42A) DEPARTED KBJC ROCKY MOUNTAIN METROPOLITAN AIRPORT. SHORTLY AFTER TAKEOFF, THE PILOT RADIOED THAT THEY HAD A "DOOR POP" AND REQUESTED TO RETURN TO LAND.

LC1 CONTROLLER INSTRUCTED A/C TO ENTER RIGHT TRAFFIC TO RUNWAY 30R. PILOT DID NOT RESPOND. LC1 CONTROLLER OBSERVED THE A/C FLYING AT A LOW ALTITUDE AND ASKED IF THEY COULD CLIMB. PILOT AGAIN STATED THE NEED TO RETURN DUE TO THE OPEN DOOR AND STATED THEY WERE HAVING DIFFICULTY HEARING THE TOWER.

THE A/C STARTED A CONTINUOUS SLOW DESCENT WITH THE LANDING GEAR EXTENDED ENTERING A LEFT BANK THAT INCREASED IN ROLL RATE UNTIL THE A/C WAS IN A LEFT WING DOWN AND NOSE LOW DIVE. THE AIRCRAFT CRASHED IN A FIELD APPROX. 1.5 MILES NORTH OF RUNWAY 30R IMPACTING THE TERRAIN IN AN ESTIMATED 90 DEGREE LEFT BANK AND NOSE DOWN ATTITUDE. THERE WAS A POST-ACCIDENT FIRE AND TWO FATALITIES.

## The NTSB's investigation of this event (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB CEN25FA178](https://openairdocs.org/ntsb/CEN25FA178), May 17, 2025: Beech 95-B55 (T42A) (N4321Z), Broomfield, CO, destroyed, 2 fatal, investigation ongoing

## Other reports on N4321Z (1)

Matched to the same aircraft by N-number and date.

- [Incident 19941018039369I](https://openairdocs.org/incident/19941018039369I), Oct 18, 1994: Beech 95B55 (N4321Z), Denver, CO, Minor damage. Turned off onto taxiway. Right main gear collapsed.

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.