# NTSB CHI04CA095: Beech C23, N6715X, Lake in the Hil, IL, April 17, 2004 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: April 17, 2004, 08:45 local (13:45 UTC) - Place: Lake in the Hil, IL - Coordinates: 42.206665, -88.323059 - Nearby events: https://openairdocs.org/map.md?lat=42.2067&lon=-88.3231&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed, report June 30, 2004 - Report: Approved by Office Director - Parties: West Chicago, IL, FSDO - NTSB case key (mKey): 59121 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI04CA095 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/59121/pdf - Page: https://openairdocs.org/ntsb/CHI04CA095 ## Probable cause The dual student pilot not maintaining airplane control during the go-around and the flight instructor pilot's inadequate remedial action resulting in the airplane's uncontrolled descent. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Loss of control - in flight, landing - aborted - aircraft control - not maintained, dual student (cause) - remedial action - inadequate, pilot in command(cfi) (cause) - In flight collision with terrain/water, descent - uncontrolled - terrain condition - grass ## Analysis The airplane sustained substantial damage on impact with terrain when the airplane exited the runway during an aborted landing. The instructor reported, "The aircraft turned final and flew a slightly low and fast approach to the runway. The aircraft touched down flat on the runway and because of the excess speed the aircraft bounced into the air a considerable amount. At this point the landing was aborted. As the power was advanced the aircraft began a left turn and drifted off the runway. At this point the instructor called for complete control of the aircraft and returned to wings level pitch attitude; however, despite the application of full power the aircraft refused to climb and touched down right main first on the grass to the north side of the runway. The aircraft then swung nose right shearing off the nose gear and left main gear causing the propeller to strike the ground." The pilot reported no mechanical malfunctions associated with the airplane in reference to the flight. An examination of the wreckage revealed that the flight controls were operational and correct and that the engine controls were operational. ## Factual narrative On April 17, 2004, about 0845 central daylight time, a Beech C23, N6715X, operated by the Flight Center at Service Aviation Inc., sustained substantial damage on impact with terrain when the airplane exited the runway during a go-around at the Lake in the Hills Airport, near Lake in the Hills, Illinois. The instructional flight was operating under 14 CFR Part 91. Visual meteorological conditions prevailed at the time of the accident. No flight plan was on file. The instructor pilot and student pilot reported no injuries. The flight departed from Palwaukee Municipal Airport (PWK), near Wheeling, Illinois, about 0720. The certified flight instructor's accident report stated: The aircraft turned final and flew a slightly low and fast approach to the runway. The aircraft touched down flat on the runway and because of the excess speed the aircraft bounced into the air a considerable amount. At this point a go around was initiated. As the power was advanced the aircraft began a left turn and drifted off the runway. At this point the instructor called for complete control of the aircraft and returned to wings level pitch attitude, however despite the application of full power the aircraft refused to climb and touched down right main first on the grass to the north side of the runway. The aircraft then swung nose right shearing off the nose gear and left main gear causing the propeller to strike the ground. The aircraft came to rest in the grass to the north of runway 8 about halfway down the runway, and facing the centerline of the runway. The pilot reported no mechanical malfunctions associated with the airplane in reference to the flight. A Federal Aviation Administration Inspector performed an examination of the wreckage. The examination revealed that the flight controls were operational and correct and that the engine controls were operational. At 0853, the recorded PWK weather was: Wind calm; visibility 6 statute miles; present weather haze; sky condition clear; temperature 14 degrees C; dew point 11degrees C; altimeter 30.05 inches of mercury. At 0853, the recorded DuPage Airport, near West Chicago, Illinois, weather was: Wind variable at 3 knots; visibility 6 statute miles; present weather haze; sky condition few clouds 6,000 feet; temperature 15 degrees C; dew point 12 degrees C; altimeter 30.03 inches of mercury. ## Aircraft - Registration: [N6715X](https://openairdocs.org/aircraft/N6715X), registered now, S/N M-2260, built 1979 (OpenAirDocs) - Reported make and model: Beech C23 - Registry model: [Beech C23](https://openairdocs.org/model/beech-c23) (registry code 1151242) (OpenAirDocs) - Registry engine: [Lycoming O&VO-360 series](https://openairdocs.org/engine/lycoming-o-vo-360-series) (registry code 41514, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: M-2260 - Engines: Lycoming O-360 180 horsepower reciprocating - Damage: Substantial damage - Flight: Instructional, Part 91 - Registered owner: Flight Center At Service Aviation Inc - Airworthiness certificate: Standard, Normal - Departed: PWK, CHICAGO/PROSPEC, IL - Destination: Lake in the Hil, IL ## Flight crew As NTSB recorded them. NTSB leaves out names. - Flight instructor; age 23; injuries: none; flight instructor, commercial; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; last flight review February 26, 2004; seat: rear; flight hours: 502 total, 103 in this make and model, 352 as pilot in command, 117 in the last 90 days, 49 in the last 30 days, 2 in the last 24 hours - Student pilot; injuries: none ## Weather - Conditions: Visual (VMC), Day - Wind: 0° at 0 knots - Visibility: 6 statute miles - Lowest ceiling: none - Temperature: 57 °F, dew point 52 °F - Altimeter: 30.04 inHg - Observed at: PWK ## FAA reports on this event (1) The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs). - [Accident 20040417007229A](https://openairdocs.org/incident/20040417007229A), Apr 17, 2004: Beech C23, Lake In The Hil, IL, Substantial damage. (-23) Cft, tesch, and student, dyer, departed pwk for 3CK to practice takeoffs and landings. Student bounced aircraft during landing. CFI took over. Aircraft… ## Other investigations on N6715X (1) From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [NTSB CHI08CA181](https://openairdocs.org/ntsb/CHI08CA181), Jul 6, 2008: Beech C23 (N6715X), Schaumburg, IL, substantial damage. Probable cause: The pilot's inadequate compensation for the crosswind and his failure to maintain directional control during landing. Contributing to the accident were the gusting crosswind, and the embankment. From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.