SEA00LA006
1999-10-20 · BOZEMAN, Montana, United States · Minor · 1 aircraft · Status: Completed
Airport BZN
Current FAA registration · N8078P
- Make / Model
- PIPER PA-24-250
- Year of manufacture
- 1962 · 37 years old at event
- Engine
- LYCOMING 0-540 SERIES (250 hp)
- Seats / Engines
- 4 seats · 1 engine
- Last airworthiness date
- 19621113
- ADS-B equipped
- Yes — Mode-S AAFF5C
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
The pilot-in-command's (CFI) failure to take remedial action. Factors include the private pilot letting the airspeed get too low.
Factual narrative
On October 20, 1999, approximately 1000 mountain daylight time, a Piper PA-24-250, N8078P, experienced a hard landing during a simulated engine-out approach at Gallatin Field, Bozeman, Montana. The flight instructor and the private pilot received minor injuries, and the aircraft, which was owned and operated by the private pilot, sustained substantial damage. The local 14 CFR Part 91 instructional flight, which began about 60 minutes prior to the accident, was being conducted in visual meteorological conditions. No flight plan had been filed, and there was no report of an ELT activation. According to an FAA Inspector from the Helena FSDO, the private pilot's flight review was not current, and this was an instructional flight which he hoped would be the basis for renewing his review. The inspector said that during the review, the flight instructor reduced the engine power in order to simulate an engine failure, and then instructed the private pilot to land the aircraft. According to the private pilot, he tried to "stretch" the glide in order to reach the end of the runway, but the airspeed began to slow, and the aircraft dropped in hard just after crossing the runway threshold. Although the airspeed had slowed below normal approach speed as the aircraft neared the approach end of the runway, the instructor pilot did not attempt to add power, nor did she call for termination of the simulated forced landing exercise. The private pilot, whose flight review had expired, was in the process of completing a flight review recurrency flight, when the instructor reduced the power and asked him to execute a simulated forced landing. As he stretched the glide in an attempt to make it to the approach end of the runway, the airspeed became lower than normal approach speed. Although the aircraft was able to reach the end of the runway, just after it crossed the threshold, it dropped onto the runway with sufficient force to cause substantial damage. Although the airspeed had slowed below normal approach speed as the aircraft neared the approach end of the runway, the instructor pilot did not add power, nor did she call for termination of the simulated forced landing exercise. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1999_SEA00LA006.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
Search this event elsewhere
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Related research
Matched on aircraft type or causal vocabulary (engine failure). All research papers
- arXiv 2022 · arXiv preprint Multi-level Adaptation for Automatic Landing with Engine Failure under Turbulent Weather
This paper addresses efficient feasibility evaluation of possible emergency landing sites, online navigation, and path following for automatic landing under engine-out failure subject to turbulent wea…
- NASA NTRS 2019 · Conference Paper Simulation of Liquid Rocket Engine Failure Propagation Using Self-Evolving Scenarios
Traditional probabilistic risk assessment approaches often require failure scenarios to be explicitly defined through event sequences that are then quantified as part of the integrated analysis.
- NASA NTRS 2019 · Conference Paper Rocket engine failure detection using system identification techiques
The theoretical foundation and application of two univariate failure detection algorithms to Space Shuttle Main Engine (SSME) test firing data is presented.
- NASA NTRS 2019 · Conference Paper Rocket engine failure detection using system identification techniques
The theoretical foundation and application of two univariate failure detection algorithms to Space Shuttle Main Engine (SSME) test firing data is presented.
- NASA NTRS 2019 · Technical Memorandum (TM) A simulator investigation of engine failure compensation for powered-lift STOL aircraft
A piloted simulator investigation of various engine failure compensation concepts for powered-lift STOL aircraft was carried out at the Ames Research Center.
- Semantic Scholar 2019 · Article (AIAA Scitech 2019 Forum) Impact of Engine Failure Constraints on the Initial Sizing of Hybrid-Electric GA Aircraft
Potential advantages of hybrid-electric aircraft are fuel savings, lower emissions, and reduced noise. Since these aircraft generally apply multiple power sources, they can also be designed to sustain…