# NTSB CEN11CA199: Cessna 310Q, N119RS, Romeoville, IL, February 22, 2011 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: February 21, 2011, 19:10 local (Feb 22, 2011, 01:10 UTC) - Place: Romeoville, IL - Coordinates: 41.608055, -88.102775 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=41.6081&lon=-88.1028&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing-flare/touchdown: Hard landing](https://openairdocs.org/ntsb-events/092) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report June 20, 2011 - Report: Approved by Office Director - NTSB office: Central Region - Parties: FAA-DPA-FSDO - NTSB case key (mKey): 78406 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CEN11CA199 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/78406/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=78406 - Page: https://openairdocs.org/ntsb/CEN11CA199 ## Probable cause The pilot's failure to maintain adequate airspeed during the approach/landing to compensate for the ice accumulated on the airframe which resulted in a hard landing. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Temp/humidity/pressure: conducive to structural icing](https://openairdocs.org/ntsb-findings/03031025): Environmental issues › Conditions/weather/phenomena · Effect on operation; cases with it: [Cessna 310Q, 1 case](https://openairdocs.org/ntsb-findings/03031025/cases.md?model=2074242), [All aircraft, 103 cases](https://openairdocs.org/ntsb-findings/03031025/cases.md) - [Performance/control parameters: airspeed](https://openairdocs.org/ntsb-findings/01062010): Aircraft › Aircraft oper/perf/capability · Incorrect use/operation (probable cause); cases with it: [Cessna 310Q, 3 cases](https://openairdocs.org/ntsb-findings/01062010/cases.md?model=2074242), [All aircraft, 1,681 cases](https://openairdocs.org/ntsb-findings/01062010/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Landing-flare/touchdown: Hard landing](https://openairdocs.org/ntsb-events/092) (defining event); cases with it: [Cessna 310Q, 2 cases](https://openairdocs.org/ntsb-events/092/sequence.md?model=2074242), [All aircraft, 2,102 cases](https://openairdocs.org/ntsb-events/092/sequence.md) ## Analysis The pilot reported that she checked the weather prior to departing on the cross country flight and it appeared that an area of icing had cleared out of the area near the destination airport. While descending through 4,000 feet near the destination, the airplane began to pick up ice quickly. She advised the air traffic controller and cycled the deice boots several times. She reported that she was unable to determine how much ice was accumulating on the airplane and she made the landing approach using normal approach speeds. The airplane touched down hard resulting in substantial damage to the internal structure of the left wing. She reported that after the landing ice was visible along the leading edge of the wings. She stated that she should have maintained a higher airspeed during the approach and landing to prevent the accident. ## Factual narrative The pilot reported she checked the weather prior to departing on the cross country flight and it appeared that an area of icing had cleared out of the area near the destination airport. While descending through 4,000 feet near the destination, the airplane began to pick up ice quickly. The pilot advised air traffic control and cycled the deice boots several times. The pilot reported she was unable to determine how much ice was accumulating on the airplane and she made the landing approach using "normal" approach speeds. The airplane touched down hard during the landing resulting in substantial damage to the internal structure of the left wing. The pilot reported that after the landing ice was visible along the leading edge of the wings. She stated she should have maintained a higher airspeed during the approach and landing. ## Aircraft - Registration: [N119RS](https://openairdocs.org/deregistered/N119RS-2011-08-19), registration cancelled 2011-08-19, S/N 310Q0906, built 1974 (OpenAirDocs) - Reported make and model: CESSNA 310Q - Registry model: [Cessna 310Q](https://openairdocs.org/model/cessna-310q) (registry code 2074242) (OpenAirDocs) - Registry engine: [Continental I0-470 series](https://openairdocs.org/engine/continental-i0-470-series) (registry code 17027, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 310Q0906 - Airframe hours: 5962 - Engines: CONT MOTOR IO-520-E7B 300 horsepower reciprocating; CONT MOTOR IO-520-E7B 300 horsepower reciprocating - Damage: Substantial damage - Flight: Positioning, Part 91 - Operator: Blatti Aviation - Registered owner: Blatti Charles A Jr - Airworthiness certificate: Standard, Normal - Last inspection: Annual, October 15, 2010, 60 hours before - Departed: PHN, Port Huron, MI - Destination: LOT, Romeoville, IL - Flight plan: IFR - Airport: LOT, Lewis University, runway 09, 5,697 × 75 ft ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 40; injuries: none; commercial, flight instructor; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, without waivers/limitations; last flight review February 15, 2011; seat: left; flight hours: 6,654 total, 512 in this make and model, 6,492 as pilot in command, 97 in the last 90 days, 43 in the last 30 days, 6 in the last 24 hours ## Weather - Conditions: Visual (VMC), Night - Wind: 90° at 8 knots - Visibility: 4 statute miles - Lowest ceiling: 1,300 ft overcast - Temperature: 28 °F, dew point 25 °F - Altimeter: 29.89 inHg - Observed at: LOT ## 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 20110221003839A](https://openairdocs.org/incident/20110221003839A), Feb 21, 2011: Cessna 310Q, Romeoville, IL, Substantial damage. Upon landing at lot aircraft experienced a hard landing due to excess ice accumulation en route and on approach. The lt engine propeller struck the runway upon… ## Docket (1 files) The files NTSB released with the investigation on March 28, 2011, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=78406. 411 KB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 411 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40345034&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Redacted.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.