ANC99LA039
1999-03-27 · CHEFORNAK, Alaska, United States · None · 1 aircraft · Status: Completed
Airport CFK
Current FAA registration · N81844
- Make / Model
- PIPER PA-32-301
- Year of manufacture
- 1980 · 19 years old at event
- Engine
- LYCOMING IO-540 SER (300 hp)
- Seats / Engines
- 7 seats · 1 engine
- Last airworthiness date
- 19800227
- ADS-B equipped
- Yes — Mode-S AB2A15
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
The pilot's selection of an unsuitable landing site. A factor associated with the accident was rough and uneven terrain.
Factual narrative
On March 27, 1999, about 1010 Alaska standard time, a wheel equipped Piper PA-32-301 airplane, N81844, sustained substantial damage while landing at the Chefornak Airport, Chefornak, Alaska. The airline transport certificated pilot and the one passenger aboard were not injured. The 14 CFR Part 135 scheduled commuter flight was being operated in visual meteorological conditions by Peninsula Airways as Flight 421. The flight last departed Bethel, Alaska, about 0913, and the destination was Chefornak. According to the pilot's written statement submitted to the NTSB, the airplane bounced when it encountered frost heaves upon touchdown, and the nose landing gear collapsed. The pilot noted there was no preimpact mechanical anomalies with the airplane. Conversations with the Director of Maintenance for the operator, and an FAA airworthiness inspector who examined the airplane, disclosed the airplane received substantial damage to the firewall bulkhead. The pilot reported he was landing on a gravel airstrip that was rough and uneven due to frost heaves. He said the airplane bounced when it encountered a frost heave, and the nose gear collapsed. The pilot related there were no preimpact mechanical anomalies with the airplane. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1999_ANC99LA039.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
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Related research
Matched on aircraft type or causal vocabulary (maintenance). All research papers
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- Semantic Scholar 2025 · Article (Applied Sciences) Decision-Making Framework for Aviation Safety in Predictive Maintenance Strategies
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- Semantic Scholar 2024 · Article (Defence Science Journal) Modelling of Human Factors in Aviation Maintenance Using HFACS ME Human Factors Analysis and Classification System Maintenance Extension and Bayesian Network
Aircraft maintenance is a complex task involving a skilled human workforce, spare parts, and various other resources. Human factors are an inherent element of the human workforce.
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In the field of aviation, safety is a critical cornerstone, and the operation of Unmanned Aerial Vehicle (UAV) systems is deeply connected with this principle.
- Embry-Riddle Scholarly Commons 2024 · Journal article (JAAER) Low-Resource Automatic Speech Recognition Domain Adaptation – A Case-Study in Aviation Maintenance
With timeliness and efficiency being critical in the aviation maintenance industry, the need has been growing for smart technological solutions that optimize and streamline the different underlying ta…