NTSB CAROL · Event
Event GAA16CA500
Registry · N91JW
FAA Aircraft Registry record.
Make / Model
AEROTEK PITTS SPECIAL S-1S
Engine
LYCOMING AEIO-360 SER (180 hp)
Seats / Engines
1 seats · 1 engine
Last airworthiness date
20040302
ADS-B equipped
Yes — Mode-S AC952F
Registrant of record
DASH MARILYN
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
The pilot’s failure to maintain directional control during the landing roll, which resulted in a ground loop.
Factual narrative
According to the pilot of the tailwheel-equipped biplane, during the landing roll the tailwheel became "stuck" in an expansion joint that runs down the centerline of the runway. She reported that when the tailwheel came unstuck, the biplane "swung wildly to the left", the bottom right wing struck the ground, and the airplane came to a stop on the runway after turning 180° to the left. A video of the accident, taken by a camera mounted on the accident biplane and posted on social media revealed that the biplane touched down on the runway to the left of the centerline. During the landing roll, after crossing the taxiway A2 intersection, the biplane began drifting to the right. The tailwheel is seen crossing the centerline expansion joint about 30° to the joint, and rolls over the joint without hesitation. The tail is then seen swinging to the right at an increasing rate. The biplane ground looped to the left and the bottom right wing sustained substantial damage. The pilot reported that there were no mechanical failures or anomalies that would have prevented normal operation. According to the pilot of the tailwheel-equipped biplane, during the landing roll, the tailwheel became "stuck" in an expansion joint that runs down the centerline of the runway. She reported that when the tailwheel became unstuck, the biplane "swung wildly to the left," the bottom right wing struck the ground, and the airplane came to a stop on the runway after turning 180° to the left. A video of the accident, taken by a camera mounted on the accident biplane and posted on social media, revealed that the biplane touched down on the runway to the left of the centerline. During the landing roll and after crossing the taxiway A2 intersection, the biplane began drifting right. The tailwheel is seen crossing the centerline expansion joint about 30° to the joint and then rolling over the joint without hesitation. The tail is then seen swinging to the right at an increasing rate. The biplane ground looped to the left, and the bottom right wing sustained substantial damage. The pilot reported that there were no preaccident mechanical failures or anomalies with the airplane that would have prevented normal operation. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12
NTSB Findings
Hierarchical cause / factor breakdown from the FAA bulk avdata database. Each finding tagged C (Cause) or F (Factor).
- C Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Directional control-Not attained/maintained - C
- C Personnel issues-Task performance-Use of equip/info-Aircraft control-Pilot - C
Verbatim from NTSB's published report. Source file
NTSB_2016_GAA16CA500.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
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