# NTSB CEN16LA246: Cessna 172, N6576H, Wonder Lake, IL, July 5, 2016 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: July 5, 2016, 15:30 local (20:30 UTC) - Place: Wonder Lake, IL - Coordinates: 42.407222, -88.373886 - Nearby events: https://openairdocs.org/map.md?lat=42.4072&lon=-88.3739&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing: Landing area undershoot](https://openairdocs.org/ntsb-events/370) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed, report September 1, 2016 - Report: Approved by Office Director - NTSB office: Central Region - Parties: FAA - NTSB case key (mKey): 93545 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CEN16LA246 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/93545/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=93545 - Page: https://openairdocs.org/ntsb/CEN16LA246 ## Probable cause The flight instructor's inadequate supervision and lack of remedial action due to his diverted attention to a radio call, which resulted in the airplane landing short of the runway. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Performance/control parameters: descent/approach/glide path](https://openairdocs.org/ntsb-findings/01062040): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [Cessna 172M, 15 cases](https://openairdocs.org/ntsb-findings/01062040/cases.md?model=2072418), [All aircraft, 809 cases](https://openairdocs.org/ntsb-findings/01062040/cases.md) - [Attention/monitoring: attention](https://openairdocs.org/ntsb-findings/02021510): Personnel issues › Psychological · Instructor/check pilot (probable cause); cases with it: [Cessna 172M, 2 cases](https://openairdocs.org/ntsb-findings/02021510/cases.md?model=2072418), [All aircraft, 226 cases](https://openairdocs.org/ntsb-findings/02021510/cases.md) - [Attention/monitoring: monitoring other person](https://openairdocs.org/ntsb-findings/02021535): Personnel issues › Psychological · Instructor/check pilot (probable cause); cases with it: [Cessna 172M, 5 cases](https://openairdocs.org/ntsb-findings/02021535/cases.md?model=2072418), [All aircraft, 200 cases](https://openairdocs.org/ntsb-findings/02021535/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Landing: Landing area undershoot](https://openairdocs.org/ntsb-events/370) (defining event); cases with it: [Cessna 172M, 3 cases](https://openairdocs.org/ntsb-events/370/sequence.md?model=2072418), [All aircraft, 201 cases](https://openairdocs.org/ntsb-events/370/sequence.md) - [Landing-flare/touchdown: Off-field or emergency landing](https://openairdocs.org/ntsb-events/440); cases with it: [Cessna 172M, 28 cases](https://openairdocs.org/ntsb-events/440/sequence.md?model=2072418), [All aircraft, 3,365 cases](https://openairdocs.org/ntsb-events/440/sequence.md) - [Landing-landing roll: Collision with terr/obj (non-CFIT) ](https://openairdocs.org/ntsb-events/470); cases with it: [Cessna 172M, 100 cases](https://openairdocs.org/ntsb-events/470/sequence.md?model=2072418), [All aircraft, 10,189 cases](https://openairdocs.org/ntsb-events/470/sequence.md) ## Analysis During an instructional flight, the student pilot was landing the airplane. As the flight instructor observed the student's approach, he noted that the approach path was too low, so he prompted the student to add more engine power. The instructor then diverted his attention to a radio call with another airplane and did not monitor the student's approach path. When the instructor realized that the approach path was too low to make the runway, there was insufficient time for him to intervene before the airplane landed short of the runway. The instructor reported no mechanical malfunctions with the airplane before the accident ## Factual narrative On July 5, 2016, about 1530 central daylight time, a Cessna 172M airplane, N6576H, collided with terrain near Wonder Lake, Illinois. The flight instructor and student pilot were not injured. The airplane was substantially damaged. The airplane was registered to Flagship Phoenix Inc and operated by JB Aviation under the provisions of 14 Code of Federal Regulations Part 91 as an instructional flight. Visual meteorological conditions prevailed for the flight, which operated without a flight plan.According to the flight instructor, he was instructing the student pilot on touch and go landings at Galt Field. He estimated the prevailing wind was out of the south-southwest at 8 to 12 knots. After two landing attempts on runway 27, the instructor directed his student to land on runway 18. While on final for the third landing to runway 18, another airplane announced their intensions to takeoff on runway 27. The 's approach path was getting low on final and the instructor prompted the student to add power. Then, the instructor coordinated with the other airplane to deconflict flight paths, and did not monitor the student's approach. When the instructor returned to instructing, the approach path was still too low and there was insufficient time for the instructor to intervene before the airplane landed short. The left main landing gear separated from the airplane, and the left wing was substantially damaged. The instructor reported no mechanical malfunctions with the airplane prior to the accident. ## Aircraft - Registration: [N6576H](https://openairdocs.org/deregistered/N6576H-2020-02-28), registration cancelled 2020-02-28, S/N 17265495, built 1975 (OpenAirDocs) - Reported make and model: CESSNA 172 (M) - Registry model: [Cessna 172M](https://openairdocs.org/model/cessna-172m) (registry code 2072418) (OpenAirDocs) - Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 17265495 - Year built: 1975 - Airframe hours: 2231.7 - Engines: LYCOMING O-320-E2D reciprocating - Damage: Substantial damage - Flight: Instructional, Part 91 - Operator: JB Aviation - Registered owner: Flagship Phoenix Inc - Airworthiness certificate: Standard, Utility; Standard, Normal - Last inspection: Annual, June 23, 2016 - Departed: 10C, Wonder Lake, IL - Destination: 10C, Wonder Lake, IL - Airport: 10C, Galt Field, runway 18, 2,141 × 125 ft, grass/turf - Equipment: Stall warning system ## Flight crew As NTSB recorded them. NTSB leaves out names. - Flight instructor; age 72; injuries: none; flight instructor, commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 3, with waivers/limitations; last flight review April 27, 2016; seat: right; restraint: 3-point; flight hours: 3,800 total, 3,500 in this make and model, 3,400 as pilot in command, 48 in the last 90 days, 30 in the last 30 days, 1 in the last 24 hours - Student pilot; age 16; injuries: none; student; medical: class 3, without waivers/limitations; seat: left; restraint: 3-point; flight hours: 21 total, 21 in this make and model, 11 in the last 90 days, 5 in the last 30 days, 1 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 240° at 8 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 84 °F, dew point 64 °F - Altimeter: 29.87 inHg - Observed at: KBUU, 17 nm away ## 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 20160705021459A](https://openairdocs.org/incident/20160705021459A), Jul 5, 2016: Cessna 172M, Greenwood, IL, Substantial damage. N6576H, a Cessna 172 (CE-172), performing a landing at Galt Airport (10C), in Greenwood, IL received substantial damage on July 5, 2016. The occupants of the… ## Docket (1 files) The files NTSB released with the investigation on August 8, 2016, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=93545. 1.9 MB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 1.9 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40442963&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Master.PDF 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.