# NTSB CHI96LA118: Cessna 310R, N1835E, Marshfield, WI, March 20, 1996 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: March 20, 1996, 15:00 local (21:00 UTC) - Place: Marshfield, WI - Coordinates: 44.660339, -90.170738 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=44.6603&lon=-90.1707&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 6 uninjured - Status: Completed, report September 9, 1996 - Report: Approved by Office Director - NTSB case key (mKey): 10216 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI96LA118 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/10216/pdf - Page: https://openairdocs.org/ntsb/CHI96LA118 ## Probable cause (aircraft 2) the failure of the pilot of the PA-32R, N1030Q, to obtain identification of the Cessna 310R, N1835E, visually, and his inadequate visual outlook. A factor was the failure of both pilots to hear communications from each other. ## Probable cause (aircraft 1) the failure of the pilot of the PA-32R, N1030Q, to obtain identification of the Cessna 310R, N1835E, visually, and his inadequate visual outlook. A factor was the failure of both pilots to hear communications from each other. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Collision between aircraft (other than midair), landing - flare/touchdown - communications - not received, pilot in command (contributing factor) - communications - not received, pilot of other aircraft (contributing factor) - identification of aircraft visually - not obtained, pilot of other aircraft (cause) - visual lookout - inadequate, pilot of other aircraft (cause) - Collision between aircraft (other than midair), takeoff - roll/run - communications - not received, pilot in command (contributing factor) - communications - not received, pilot of other aircraft (contributing factor) - identification of aircraft visually - not obtained, pilot in command (cause) - visual lookout - inadequate, pilot in command (cause) ## Analysis (aircraft 2) The pilot of the Cessna 310, N1835E, stated that he had given position reports on the unicom frequency at downwind, left base, and again on final for landing on runway 34. The pilot of the Piper PA-32R, N1030Q, said that he had announced his intentions for takeoff from runway 4 on the same frequency. Both pilots said that they did not hear the other pilot's communications. The airplanes collided at the intersection of the two runways as the Cessna was touching down on runway 34 and the Piper was taking off on runway 4. Both pilots reported that they did not have visual contact with the other airplane prior to the collision. ## Analysis (aircraft 1) The pilot of the Cessna 310, N1835E, stated that he had given position reports on the unicom frequency at downwind, left base, and again on final for landing on runway 34. The pilot of the Piper PA-32R, N1030Q, said that he had announced his intentions for takeoff from runway 4 on the same frequency. Both pilots said that they did not hear the other pilot's communications. The airplanes collided at the intersection of the two runways as the Cessna was touching down on runway 34 and the Piper was taking off on runway 4. Both pilots reported that they did not have visual contact with the other airplane prior to the collision. ## Factual narrative (aircraft 2) See narrative on CHI96LA118A. ## Factual narrative (aircraft 1) On March 20, 1996, at 1500 central standard time, a Cessna 310R, N1835E, and a Piper PA-32R-300, N1030Q, collided at the intersection of runways 4 and 34 at the Marshfield Municipal Airport, Marshfield, Wisconsin. The Cessna was operating under provisions of 14 CFR Part 135 as an on demand air taxi, while the Piper was operating under 14 CFR Part 91 as a personal flight. The pilot and three passengers in the Cessna, and the pilot and one passenger in the Piper reported no injuries. Visual meteorological conditions prevailed at the time of the accident. The Cessna departed Ladysmith, Wisconsin, at 1425, and was landing on runway 34. The Piper was initiating a flight on runway 4 with the intended destination of Stambaugh, Michigan, at the time of the accident. Neither flight was operating on a flight plan. Both airplanes sustained substantial damage. The pilot of the Cessna told an inspector from the Federal Aviation Administration (FAA), that he called on the unicom frequency 123.00 MHz, his position on downwind, left base, and again on final for runway 34 at Marshfield. He further stated that he heard no call from other aircraft and observed no other traffic in the air or on the ground. He indicated that as he flared his airplane to land on runway 34, another airplane appeared from the left and a collision occurred between his airplane and the Piper in the intersection of runways 34 and 4. The pilot of the Piper told the FAA inspector that he called on the unicom frequency 123.00 MHz, reporting his intentions to back taxi on runway 4 for departure and after preparing for departure, called again to state his intentions to takeoff. He said that he did not hear any broadcast related to Marshfield. He stated that he scanned for other aircraft prior to initiating the takeoff roll, but did not see any in the air. He stated that he did not at anytime see the Cessna prior to the collision at the intersection of runway 4 and 34. Information received from the ASOS, airport personnel and the pilots involved in the accident, revealed that visual meteorological conditions prevailed at the time of the accident. The AWOS was reporting winds of 360 degrees at 15 knots, gusts to 22 knots, ten minutes prior to the accident. An examination of both airplanes subsequent to the accident revealed that the #1 and #2 communications in both airplanes were selected to 123.00 MHz. The Cessna was selected on #2 radio while the Piper was selected on #1. In a written statement a member of the airport personnel stated that he first became aware of the collision when the Cessna pilot radioed that there had been an accident. This person indicated that he did not recall hearing any prior radio communications. Although he was in a position to hear the radio, he said that he was not specifically monitoring the unicom. ## Aircraft 1 - Registration: [N1835E](https://openairdocs.org/deregistered/N1835E-2001-10-31), registration cancelled 2001-10-31, S/N 310R1584, built 1979 (OpenAirDocs) - Reported make and model: Cessna 310R - Registry model: [Cessna 310R](https://openairdocs.org/model/cessna-310r) (registry code 2074245) (OpenAirDocs) - Registry engine: [Continental IO-520 series](https://openairdocs.org/engine/continental-io-520-series) (registry code 17032, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 310R1584 - Airframe hours: 12600 - Engines: Continental IO-520-MB 285 horsepower reciprocating - Damage: Substantial damage - Flight: Part 135 - Registered owner: Heartland Aviation, Inc. - Airworthiness certificate: Standard, Normal - Departed: RCX, LADYSMITH, WI - Destination: MFI - Airport: MFI, Marshfield Minicipal, runway 34, 5,000 × 100 ft, asphalt ## Aircraft 2 - Registration: [N1030Q](https://openairdocs.org/deregistered/N1030Q-1996-10-11), registration cancelled 1996-10-11, S/N 32R7780219 (OpenAirDocs) - Reported make and model: Piper PA-32R-300 - Registry model: [Piper PA-32R-300](https://openairdocs.org/model/piper-pa-32r-300) (registry code 7103213) (OpenAirDocs) - Category: Airplane - Serial number: 325-7780219 - Airframe hours: 4377 - Engines: Lycoming IO-540-K1G5D 300 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Registered owner: Robert H. Loo - Airworthiness certificate: Standard, Normal - Departed: MFI - Destination: Y73, STAMBAUGH, MI - Airport: MFI, Marshfield Minicipal, runway 4, 3,600 × 100 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot, aircraft N1835E; age 57; airline transport; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; seat: left; flight hours: 22,000 total, 200 in this make and model, 17,000 as pilot in command, 150 in the last 90 days, 50 in the last 30 days, 3 in the last 24 hours - Pilot, aircraft N1030Q; age 70; commercial; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: left; flight hours: 11,682 total, 700 in this make and model, 11,682 as pilot in command, 56 in the last 90 days, 25 in the last 30 days, 1 in the last 24 hours ## Weather - Conditions: Visual (VMC), Not reported - Wind: 360° at 15 knots, gusting 22 - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 32 °F, dew point 10 °F - Altimeter: 30.00 inHg - Observed at: MFI, 360 nm away ## FAA reports on this event (2) The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs). - [Accident 19960320046029A](https://openairdocs.org/incident/19960320046029A), Mar 20, 1996: Cessna 310R, Marshfield, WI, Substantial damage. (.4)The pilot of the Cessna 310, N1835E, stated that he had given position reports on the UNICOM frequency at downwind, left base, and again on final for… - [Accident 19960320046489A](https://openairdocs.org/incident/19960320046489A), Mar 20, 1996: Piper PA32R300, Marshfield, WI, No damage. (-23) See attached sheet. 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.