NTSB CAROL · Event
Event SEA01LA071
Registry · N9551B
FAA Aircraft Registry record.
Make / Model
CESSNA 172RG
Engine
LYCOMING O&VO-360 SER (180 hp)
Seats / Engines
4 seats · 1 engine
Last airworthiness date
19810507
ADS-B equipped
Yes — Mode-S AD49B7
Registrant of record
LOPES GASTON A
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
The pilot's failure to extend the airplane's landing gear while landing.
Factual narrative
On April 13, 2001, about 2000 Pacific daylight time, a Cessna 172 RG, N9551B, sustained substantial damage during a wheels-up landing at Tacoma Narrows Airport, Gig Harbor, Washington. The airplane is owned by Northwest Zephyr Aviation, and was being flown by the pilot as a personal/pleasure flight under the provisions of Title 14, CFR Part 91, when the accident occurred. The private pilot, the sole occupant of the airplane, was not injured. Visual meteorological conditions prevailed and no flight plan was filed for the local flight. The flight originated from Tacoma Narrows approximately 30 minutes prior to the accident. During a telephone interview and subsequent written statement to the National Transportation Safety Board, the pilot reported that shortly after takeoff from runway 17, he noted a "high pitched hissing tone" in conjunction with the illumination of the airplane's low-voltage light. He reported that the situation lasted for a few seconds before the hissing tone subsided and the low voltage light returned to normal. The pilot stated that he thought there "might" be a problem with the aircraft's engine and elected to return to the airport and land on runway 35. The pilot turned the airplane 180 degrees and attempted to land on the opposing runway. After completing the turn, the pilot realigned the airplane on the runway centerline. He stated " I thought I did reach over and put the landing gear lever in the down position, but I don't remember for sure." The pilot stated that just before touchdown, he heard what he thought was the sound of the propeller striking the runway. He applied power and initiated a go-around. The pilot stated that he then aborted the go-around and "put the gear down" in an attempt to land the airplane on the remaining runway. The airplane touched down on the runway and the right main landing gear leg collapsed. The airplane made several heading changes before coming to rest in a grassy area northeast of runway 17-35. The airplane's horizontal stabilizer sustained substantial damage. In a written statement, a witness to the accident (a certified pilot) reported that the "...aircraft descended onto the runway without the landing gear [gear retracted] and bounced." The witness reported that after the airplane bounced back into the air, he "...heard [engine] power increase" just before the airplane contacted the runway a second time. A FAA Inspector from the Flight Standards District Office, Seattle, Washington, inspected the airplane after the accident and reported that there was no evidence found to indicate a mechanical failure or malfunction with the airplane prior to the accident. The pilot reported that shortly after takeoff he noted a "high pitched hissing tone" in conjunction with the illumination of the airplane's low-voltage light. He reported that the situation lasted for a few seconds before the hissing tone subsided and the low voltage light returned to normal. The pilot stated that he thought there "might" be a problem with the aircraft's engine and elected to return to the airport and land. The pilot turned the airplane 180 degrees and attempted to land on the opposing runway. After completing the turn, the pilot realigned the airplane on the runway centerline. He stated " I thought I did reach over and put the landing gear lever in the down position, but I don't remember for sure." The pilot stated that just before touchdown, he heard what he thought was the sound of the propeller striking the runway. He applied power and initiated a go-around. The pilot stated that he then aborted the go-around and "put the gear down" in an attempt to land the airplane on the remaining runway. The airplane touched down on the runway and the right main landing gear leg collapsed. The airplane made several heading changes before coming to rest in a grassy area northeast of runway. A FAA Inspector from the Flight Standards District Office inspected the airplane after the accident and reported that there was no evidence found to indicate a mechanical failure or malfunction with the airplane prior to the accident. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_2001_SEA01LA071.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
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Related research
What the literature says.
Academic papers and agency reports matching this event's aircraft type or causal vocabulary (go-around). Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.
- NASA NTRS 2025 · Conference Paper
A Training Study to Improve Monitoring During A Go-Around
As part of an FAA program to improve go-around (GA) safety, we were asked to determine if we could improve the performance of the Pilot Monitoring (PM) during a GA maneuver.
- Flight Safety Foundation 2024 · FSF / AeroSafety World
Go-Around Safety Forum Findings
Foundation Go-Around Safety Forum technical findings — examines why pilots fail to execute go-arounds when criteria are met (stabilized approach gate not met, energy state out of envelope, traffic con…
- Semantic Scholar 2022 · Article (Journal of Safety Research)
Go-around accidents and general aviation safety.
INTRODUCTION Changes in General Aviation (GA) accident rates, specifically in the go-around phase, are examined by comparing the number of accidents, the proportion of fatal accidents, and the proport…
- Semantic Scholar 2021 · Article (Aerospace)
Classification and Analysis of Go-Arounds in Commercial Aviation Using ADS-B Data
Go-arounds are a necessary aspect of commercial aviation and are conducted after a landing attempt has been aborted. It is necessary to conduct go-arounds in the safest possible manner, as go-arounds …
- NASA NTRS 2021 · Accepted Manuscript (Version with final changes)
Go-Around Criteria Refinement for Transport Category Aircraft
Presently, airline pilots are trained to go around if, when lower than 500 ft above the ground, they are outside of a handful of parameters such as airspeed, position, and rate of descent.
- NASA NTRS 2019 · Conference Paper
Validation of Proposed Go-Around Criteria Under Various Environmental Conditions
This paper evaluates the effects of environmental conditions on touchdown performance under varying approach states and validates proposed go-around criteria developed using data from a previously con…
Browse the full corpus — academia portal ↗