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GAA17CA445

2017-07-27 · San Andreas, California, United States · None · 1 aircraft · Status: Completed

Airport CPU

Current FAA registration · N5596C

Make / Model
CESSNA 170A
Year of manufacture
1950 · 67 years old at event
Engine
CONT MOTOR C145 SERIES (145 hp)
Seats / Engines
4 seats · 1 engine
Last airworthiness date
19551007
ADS-B equipped
Yes — Mode-S A72407

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

Probable cause & findings

The pilot’s improper landing flare during an aborted go-around in gusting wind conditions, which resulted in a hard landing.

Factual narrative

The pilot of the tailwheel-equipped airplane reported that, he landed on the main wheels, and while waiting for the tailwheel to drop, the "tailwheel jammed." He added, that when the tailwheel touched down, the airplane was difficult to control, and veered to the left. He corrected for the veer, but the airplane veered to the right. He then did a go-around, however, once airborne the airplane "did not appear to be producing proper power." He then aborted the go-around, and opted to land on the remaining runway. About 25 ft. above the runway, he set the airplane up for a wheel landing and descended. When the airplane was about 5-10 ft. above the runway, the airplane "abruptly" sank, landed hard and collapsed the main landing gear. Subsequently, the airplane came to rest nose down on the runway. The airplane sustained substantial damage to the fuselage. During a telephone interview, the pilot reported that he believed the tailwheel had jammed prior to touchdown, and that he had previously re-designed and altered the tailwheel. Further, the airplane produced insufficient power during the go-around. He reported that, the tailwheel was mechanically "okay" when inspected after the accident. Additionally, an airframe and powerplant mechanic reported that he inspected the tailwheel assembly after the accident, and found no defects and no binding. The pilot reported the weather at the accident airport, about the time of the accident to be, wind from 320° at 10 knots, gusting to 12 knots. The pilot landed on runway 31. Photographs taken at the accident site showed torsional twisting of the propeller, consistent with the engine producing power at the time of impact. The National Transportation Safety Board did not examine the engine. The pilot of the tailwheel-equipped airplane reported that he landed on the main wheels, and while waiting for the tailwheel to drop, the "tailwheel jammed." He added that, when the tailwheel touched down, the airplane was difficult to control and veered to the left. He corrected for the veer, but the airplane veered to the right. He then conducted a go-around; however, once airborne, the airplane "did not appear to be producing proper power." He then aborted the go-around and opted to land on the remaining runway. About 25 ft above the runway, he set the airplane up for a wheel landing and descended. When the airplane was about 5 to 10 ft above the runway, the airplane "abruptly" sank and landed hard, and the main landing gear collapsed. Subsequently, the airplane came to rest nose down on the runway. The airplane sustained substantial damage to the fuselage. During a telephone interview, the pilot reported that he believed the tailwheel had jammed before touchdown and that he had previously redesigned and altered the tailwheel. Further, the airplane produced insufficient power during the go-around. He reported that the tailwheel was mechanically "okay" when examined after the accident. Additionally, an airframe and powerplants mechanic reported that he examined the tailwheel assembly after the accident and found no defects and no binding. The pilot reported that the weather at the accident airport, about the time of the accident, was wind from 320° at 10 knots, gusting to 12 knots. The pilot landed on runway 31. Photographs taken at the accident site showed torsional twisting of the propeller, consistent with the engine producing power at the time of impact. The National Transportation Safety Board did not examine the engine. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12

NTSB Findings

FAA avdata. C = Cause, F = Factor.

  • C Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Landing flare-Not attained/maintained - C
  • C Personnel issues-Task performance-Use of equip/info-Aircraft control-Pilot - C
  • — Aircraft-Aircraft systems-Landing gear system-Nose/tail landing gear-Not specified
  • — Environmental issues-Conditions/weather/phenomena-Wind-Gusts-Effect on operation

Verbatim from NTSB's published report. Source file NTSB_2017_GAA17CA445.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

Related research

Matched on aircraft type or causal vocabulary (go-around). All research papers