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Atlas / NTSB / WPR22LA289

NTSB CAROL · Event

Event WPR22LA289

2022-07-28 Fairbank's, Alaska, United States Airport · PAFA None 1 aircraft Status: Completed

Registry · N4493B

FAA Aircraft Registry record.

Make / Model

CESSNA 170B

Year of manufacture

1955 · 67 years old at event

Engine

CONT MOTOR 0-300 SER (145 hp)

Seats / Engines

4 seats · 1 engine

Last airworthiness date

19560613

ADS-B equipped

Yes — Mode-S A56ECF

Registrant of record

GRIDLEY TREVOR M

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

Probable cause & findings

The student pilot's failure to maintain directional control during the takeoff roll.

Factual narrative

The student pilot in the tailwheel equipped airplane reported that, during the takeoff ground roll he did not apply enough right rudder input to compensate for the propellers asymmetric blade effect. The airplane veered off the left side of the runway and ground looped. The right wing and horizontal stabilizer were substantially damaged. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded 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).

  • Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Directional control-Not attained/maintained
  • Personnel issues-Task performance-Use of equip/info-Aircraft control-Student/instructed pilot

Verbatim from NTSB's published report. Source file NTSB_2022_WPR22LA289.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.