ERA25LA381

NTSB accident investigation · Pitts S-1T · Danbury, CT · September 2, 2025

Accident · No injuriesClass 4 · LimitedFinal report
Date
September 2, 2025, 11:00 local (15:00 UTC)
Place
Danbury, CT
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N742MAPitts S-1T
Defining event
Landing-landing roll: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report July 15, 2026
Report
Approved by Office Director
Investigation class
Class 4 - Basic report with no Prelim publish
NTSB office
Eastern Region Aviation
Parties
FAA/FSDO
FAA report
20250902020639A
Case key
202328

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Probable cause

The pilot’s failure to maintain directional control during the landing rollout, which resulted in a ground loop.

Findings · 2

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedPitts S-1T: 1 caseAll aircraft: 3,958 casesProbable cause
Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotPitts S-1T: 1 caseAll aircraft: 9,295 casesProbable cause

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.

Analysis

The pilot of the tailwheel-equipped airplane was landing, and stated that during the landing rollout, while decelerating, the airplane veered to the right and ground looped. The airplane’s left wingtip contacted the runway surface during the ground loop and was substantially damaged. The pilot reported that there were no preimpact mechanical malfunctions or failures of the airplane that would have precluded normal operation.

Aircraft

Registration
N742MA
Reported as
Pitts S-1T
Category
Airplane, amateur-built
Serial number
1005
Built
1982
Airframe hours
1,135
Engine
Lycoming AEIO-360-A1, 200 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Condition · March 5, 2025 · 1 hours before
Departed
DYL · Doylestown, PA
Destination
ASH · Nashua, NH
Airport
DXR · Danbury Muni, runway 08, 4,421 × 150 ft, asphalt
Equipment
Electronic flight bag or handheld device, ADS-B

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.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
47
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 2, With waivers/limitations
Last flight review
July 9, 2024
Seat
Center
Flight hours
643 total · 122 in this make and model · 578 as pilot in command · 68 in the last 90 days · 36 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
70° at 7 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
72 °F, dew point 52 °F
Altimeter
30.19 inHg
Observed at
KDXR
METAR
KDXR 021453Z 07007KT 10SM CLR 22/11 A3019 RMK AO2 SLP219 T02220106 58008

Docket · 2

The files NTSB released with the investigation on July 15, 2026, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.7 MB in all.

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.