CEN15LA242
2015-05-27 · Superior, Wisconsin, United States · None · 1 aircraft · Status: Completed
Airport SUW
Aircraft involved
Probable cause & findings
A stuck aileron due to a battery that had become jammed in the aileron bell crank.
Factual narrative
On May 27, 2015, about 1405 central daylight time, a Bellanca 8KCAB airplane, N102EC, experienced a loss of control authority and impacted terrain during a forced landing near the Richard I Bong Airport (SUW), Superior, Wisconsin. The commercial pilot and passenger were not injured. The airplane sustained substantial damage. The airplane was registered to and operated by a private individual under the provisions of 14 Code of Federal Regulations Part 91 as a personal flight. Visual meteorological conditions prevailed for the flight, which operated without a flight plan.According to the pilot, the flight was normal until after the second touch and go landing. The airplane was in a climb from the runway when it began an uncommanded left bank. He perceived that the ailerons were jammed and attempted to regain control of the airplane but was not successful. Additionally the pilot could not get the airplane to climb, so when the airplane was about 100 feet above ground level he performed a forced landing to the airport property. The airplane's forward fuselage was substantially damaged during the forced landing. A postaccident examination of the airplane by a Federal Aviation Administration inspector found a 9-volt battery jammed in the lower right aileron bellcrank. The pilot reported that the battery was the same brand that the he used for his headset. He had previously changed the batteries in flight several days earlier, but thought that he had accounted for all of the batteries. The pilot reported that, while climbing after a touch-and-go landing, the airplane began an uncommanded left bank. The pilot perceived that the ailerons were jammed and attempted to regain control of the airplane; however, he was not successful, so he performed a forced landing to the airport property. A postaccident examination of the airplane found a 9-volt battery jammed in the aileron bell crank. The pilot reported that the battery was the same brand he used for his headset and that he had changed the batteries in flight several days before the accident flight. It is likely that the pilot dropped the battery during that flight. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12
NTSB Findings
FAA avdata. C = Cause, F = Factor.
- C Environmental issues-Physical environment-Object/animal/substance-Debris/dirt/foreign object-Effect on equipment - C
- C Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Lateral/bank control-Attain/maintain not possible - C
Verbatim from NTSB's published report. Source file
NTSB_2015_CEN15LA242.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 (loss of control). All research papers
- Embry-Riddle Scholarly Commons 2025 · Journal article (JAAER) A Scoping Review of Aviation Loss of Control Inflight Research
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- SKYbrary (Eurocontrol) 2024 · SKYbrary article Loss of Control In-Flight (LOC-I) — SKYbrary Knowledge Base
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- Semantic Scholar 2024 · Article (International Conference on Networking and Services) Risk Assessment of Loss of Control In-Flight Trajectories for Urban Air Mobility Safety
In Urban Air Mobility (UAM), maintaining a minimum separation between aircraft is a safety requirement, which becomes challenging amidst congested air traffic and off-nominal conditions, such as Loss …
- NTSB Aircraft Accident Reports 2022 · Accident report Loss of Control on Takeoff in Icing Conditions — Citation 560XL
Cessna Citation 560XL fatal takeoff icing accident, March 2018. Investigation of a Citation 560XL loss-of-control takeoff accident in icing conditions.
- Semantic Scholar 2021 · Article (Aviation) ANALYSIS OF GENERAL AVIATION FIXED-WING AIRCRAFT ACCIDENTS INVOLVING INFLIGHT LOSS OF CONTROL USING A STATE-BASED APPROACH
Inflight loss of control (LOC-I) is a significant cause of General Aviation (GA) fixed-wing aircraft accidents. The United States National Transportation Safety Board’s database provides a rich source…
- NASA NTRS 2021 · Presentation Use of Design of Experiments in Determining Neural Network Architectures for Loss of Control Detection
Abstract—We describe empirical methods for selecting a neural network architecture to implement belief state inference on generic commercial transport aircraft.