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Atlas / NTSB / WPR10CA378

NTSB CAROL · Event

Event WPR10CA378

2010-07-30 Caldwell, Idaho, United States Airport · KEUL None 1 aircraft Status: Completed

Registry · N97RP

FAA Aircraft Registry record.

Make / Model

PORTER JAMES GRANT SUPERIOR CUB

Year of manufacture

1998 · 12 years old at event

Engine

LYCOMING O&VO-360 SER (180 hp)

Seats / Engines

2 seats · 1 engine

Last airworthiness date

19980904

ADS-B equipped

Yes — Mode-S AD82D1

Registrant of record

COMBS JONATHAN R

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

Probable cause & findings

The pilot’s failure to maintain directional control during landing.

Factual narrative

The pilot reported that as the tail wheel-equipped airplane touched down it began to veer to the left. The pilot added full right rudder and tapped the right brake; however, the airplane ground looped and exited the runway into the dirt. The right wing struck the ground and was substantially damaged. The pilot reported no mechanical failures or malfunctions with the airframe or engine prior to the accident. In a written statement, the pilot reported that the accident could have been prevented by receiving additional instruction with a certificated flight instructor in the airplane make and model. The pilot reported that as the tailwheel-equipped airplane touched down it began to veer to the left. The pilot added full right rudder and tapped the right brake; however, the airplane ground-looped and exited the runway into the dirt. The right wing struck the ground and was substantially damaged. The pilot reported no mechanical failures or malfunctions with the airframe or engine prior to the accident. 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 Personnel issues-Task performance-Use of equip/info-Aircraft control-Pilot - C
  • C Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Directional control-Not attained/maintained - C

Verbatim from NTSB's published report. Source file NTSB_2010_WPR10CA378.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.