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SEA94LA068

1994-02-27 · GILLETTE, Wyoming, United States · None · 1 aircraft · Status: Completed

Airport GCC

Current FAA registration · N21840

Make / Model
CESSNA 172M
Year of manufacture
1974 · 20 years old at event
Engine
LYCOMING 0-320 SERIES (180 hp)
Seats / Engines
4 seats · 1 engine
Last airworthiness date
19741004
ADS-B equipped
Yes — Mode-S A1DA37

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

Probable cause & findings

WAS THE PILOT'S INADEQUATE REMEDIAL ACTION. FACTORS INCLUDE AN INADVERTENT PORPOISE, AND A LACK OF TOTAL EXPERIENCE.

Factual narrative

On February 27, 1994, approximately 1100 mountain standard time (MST), a Cessna 172, N21840, experienced a hard landing at Gillette-Campbell County Airport, Gillette, Wyoming. The student pilot, who was the sole occupant of the aircraft, was not injured, but the aircraft sustained substantial damage. The local instructional flight, which originally departed the same airport about 90 minutes earlier, was in visual meteorological conditions at the time of the accident. No flight plan had been filed, and there was no report of an ELT activation. According to her instructor, this was the student pilot's second solo flight. The instructor said that during the flight the student had successfully completed 12 or 13 touch-and-go landings prior to the accident. He stated that the accident sequence began when, during an attempted landing, the aircraft began to porpoise. While attempting remedial action to stop the porpoising, the pilot allowed the nose wheel to impact the runway hard enough to cause substantial damage to the airframe. THE STUDENT PILOT, WHO WAS ON HER SECOND SOLO FLIGHT, HAD SUCCESSFULLY COMPLETED 13 TOUCH-AND-GO LANDINGS JUST PRIOR TO THE ACCIDENT. DURING THE FOURTEENTH LANDING, THE AIRCRAFT BEGAN TO PORPOISE, AND DURING THE PILOT'S ATTEMPTED REMEDIAL ACTION, SHE ALLOWED THE AIRCRAFT'S NOSE WHEEL TO IMPACT THE RUNWAY HARD ENOUGH TO CAUSE SUBSTANTIAL DAMAGE TO THE AIRFRAME. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12

Verbatim from NTSB's published report. Source file NTSB_1994_SEA94LA068.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

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