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Atlas / NTSB / SEA04LA135

NTSB CAROL · Event

Event SEA04LA135

2004-07-16 Boise, Idaho, United States Airport · BOI None 1 aircraft Status: Completed

Registry · N78RD

FAA Aircraft Registry record.

Make / Model

CIRRUS DESIGN SR22

Year of manufacture

2008

TCDS

A00009CH · CIRRUS DESIGN CORP

Engine

CONT MOTOR IO-550-N (310 hp)

Seats / Engines

4 seats · 1 engine

Last airworthiness date

20080608

ADS-B equipped

Yes — Mode-S AA8FA8

Registrant of record

EAGLE AIRCRAFT LLC

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

Probable cause & findings

The pilot's failure to maintain directional control during the landing roll resulting in an inadvertent ground loop.

Factual narrative

On July 16, 2004, approximately 1503 mountain daylight time, a Cessna A185F, N78RD, sustained substantial damage when it ground looped following a loss of control during the landing roll at Boise Air Terminal, Boise, Idaho. The airline transport pilot and the passenger were not injured. The airplane was registered to and operated by the pilot. Visual meteorological conditions prevailed for the personal cross country flight conducted under Title 14 CFR Part 91, and no flight plan was filed. The flight departed McCall, Idaho, about 1430. During a telephone interview conducted by the NTSB investigator-in-charge (IIC) on August 18, 2004, the pilot reported that she performed a wheel landing on runway 28L. As the tail settled, the airplane swerved slightly to the right, and she corrected with left rudder. However, the rudder was ineffective due to the slow speed of the airplane, and the airplane continued to swerve right. The pilot stated that at this point the left main tire peeled off the wheel rim, the wheel rim dug into the pavement, and the airplane spun around 180 degrees and came to a stop just off the right side of the runway. The pilot stated that there were no mechanical anomalies with the airplane prior to the accident. The Director of Maintenance of the facility contracted to repair the airplane provided to the NTSB IIC a list of damaged parts that indicated the fuselage sustained structural damage in the area of the left main landing gear attach point. The pilot reported that she performed a wheel landing on runway 28L. As the tail settled, the airplane swerved slightly to the right, and she corrected with left rudder. However, the rudder was ineffective due to the slow speed of the airplane, and the airplane continued to swerve right. The pilot stated that at this point the left main tire peeled off the wheel rim, the wheel rim dug into the pavement, and the airplane spun around 180 degrees and came to a stop just off the right side of the runway. The pilot stated that there were no mechanical anomalies with the airplane prior to the accident. The Director of Maintenance of the facility contracted to repair the airplane provided to the NTSB IIC a list of damaged parts that indicated the fuselage sustained structural damage in the area of the left main landing gear attach point. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12

Verbatim from NTSB's published report. Source file NTSB_2004_SEA04LA135.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

Related research

What the literature says.

Academic papers and agency reports matching this event's aircraft type or causal vocabulary (loss of control, maintenance). Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.

Browse the full corpus — academia portal ↗