OpenAirDocs.org

20260510009589I

Incident · No damage
Open the Markdown

FAA incident report · Diamond Aircraft Ind DA20-C1 · Louisville, KY · May 10, 2026

FAA Aviation Safety Information Portal

© OpenStreetMap
Date
May 10, 2026 · 14:30 local
Place
Louisville, KY
Airport
Bowman Field
Phase of flight
Run-Up Area
Operating rules
General operating rules (Part 91)
Damage
No damage
Aircraft
N910CT
Reported as
Diamond Aircraft Ind DA20-C1
Reported engine
Continental IO-240 series
People aboard
2
Fatal injuries
0
Other injuries
0
Pilot’s certificate
Private pilot
Pilot’s flight hours
99 total
N910CTRegistered now · Diamond Aircraft Ind DA20-C1S/N C0111 · Built 2000Airframe modelDiamond Aircraft Ind DA20-C1Engine modelContinental IO-240 seriesReciprocating

From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry 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.

What happened

The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.

During preflight engine run-up, the aircraft veered to the right, departing runway and came to rest in the grass. There was no damage to the aircraft or property, and no injuries. Inspection revealed that cotter pin on the left brake master cylinder came out causing it to detach from the rudder/brake pedal assembly resulting in loss of braking action. Maintenance personnel replaced affected hardware and returned aircraft to service.

As the FAA filed it

DURING PREFLIGHT ENGINE RUN-UP, THE AIRCRAFT VEERED TO THE RIGHT, DEPARTING RUNWAY AND CAME TO REST IN THE GRASS. THERE WAS NO DAMAGE TO THE AIRCRAFT OR PROPERTY, AND NO INJURIES. INSPECTION REVEALED THAT COTTER PIN ON THE LEFT BRAKE MASTER CYLINDER CAME OUT CAUSING IT TO DETACH FROM THE RUDDER/BRAKE PEDAL ASSEMBLY RESULTING IN LOSS OF BRAKING ACTION. MAINTENANCE PERSONNEL REPLACED AFFECTED HARDWARE AND RETURNED AIRCRAFT TO SERVICE.