# NTSB FTW02LA081: Cessna 177, N3402T, Pond Creek, OK, February 18, 2002 - Type: NTSB accident investigation - Classification: Accident · Serious injuries · Limited investigation · Final report - Date: February 18, 2002, 13:30 local (19:30 UTC) - Place: Pond Creek, OK - Coordinates: 36.641387, -97.800003 - Nearby events: https://openairdocs.org/map.md?lat=36.6414&lon=-97.8000&mi=10 - Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping) - Highest injury: Serious injuries - Injuries: 1 serious - Status: Completed, report July 25, 2002 - Report: Approved by Office Director - Parties: Federal Aviation Administration - NTSB case key (mKey): 54218 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW02LA081 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/54218/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=54218 - Page: https://openairdocs.org/ntsb/FTW02LA081 ## Probable cause The pilot's failure to maintain altitude due to falling asleep while performing pipeline patrol activities. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - In flight collision with terrain/water, maneuvering - altitude - not maintained, pilot in command (cause) - physiological condition, pilot in command (cause) - terrain condition - open field ## Analysis The pilot was conducting pipeline patrol activities at 300 feet agl. He stated that "everything was quiet, and there was nothing to report." The pilot fell asleep, and the next thing he remembered was hitting the ground in an open wheat field, and sliding 240 feet before coming to rest in an upright position. A sleep log for the 72-hour period immediately preceding the accident showed the pilot experienced no irregular sleep patterns. ## Factual narrative On February 18, 2002, at 1330 central standard time, a Cessna 177 airplane, N3402T, was substantially damaged when it impacted terrain near Pond Creek, Oklahoma. The airplane was registered to and operated by Eagle Sky Patrol, of Lead, South Dakota. The commercial pilot, who was the sole occupant of the airplane, sustained serious injuries. Visual meteorological conditions prevailed, and a flight plan was not filed for the 14 Code of Federal Regulations Part 91 pipeline patrol flight. The flight originated from the Pratt Industrial Airport, Pratt, Kansas, at 1155, and its destination was the Captain Jack Thomas/El Dorado Airport, El Dorado, Kansas. On the Pilot/Operator Aircraft Accident Report (NTSB Form 6120.1/2), and in a telephone interview with the NTSB investigator-in-charge, the pilot reported that he was checking exposed pipe and damaged markers at 300 feet agl. Before "dozing off," he stated that "everything was quiet and nothing to report," and that he remembered seeing Pond Creek Airport and passing markers 97 and 98. The next thing he remembered was the airplane hitting the ground, sliding approximately 240 feet, and coming to rest upright in a wheat field. The pilot secured the airplane, called for assistance, and exited the airplane. A 72-hour sleep log provided by the pilot indicated that on February 15, he slept 7 hours 5 minutes; on February 16, he slept 7 hours 25 minutes; and on February 17, he slept 7 hours 15 minutes. An examination of the airplane by an FAA inspector revealed the nose landing gear had been sheared off, the firewall was buckled, and both propeller blades were bent aft. The left main landing gear had separated and impacted the left horizontal stabilizer. The left wing root area was buckled. ## Aircraft - Registration: [N3402T](https://openairdocs.org/deregistered/N3402T-2017-07-12), registration cancelled 2017-07-12, S/N 17700702 (OpenAirDocs) - Reported make and model: Cessna 177 - Registry model: [Cessna 177](https://openairdocs.org/model/cessna-177) (registry code 2073704) (OpenAirDocs) - Category: Airplane - Serial number: 17700702 - Airframe hours: 5405 - Engines: Lycoming O320-E2D 150 horsepower reciprocating - Damage: Substantial damage - Flight: Other work use, Part 91 - Registered owner: Eagle Sky Patrol - Airworthiness certificate: Standard, Normal - Last inspection: Annual, February 11, 2001, 50 hours before - Departed: PTT, Pratt, KS - Destination: EQA, El Dorado, KS ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 61; injuries: serious; flight instructor, commercial; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; last flight review April 20, 2000; seat: left; flight hours: 17,138 total, 4,401 in this make and model, 16,949 as pilot in command, 425 in the last 90 days, 142 in the last 30 days, 6 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 180° at 35 knots, gusting 50 - Lowest ceiling: none ## 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 20020218001159A](https://openairdocs.org/incident/20020218001159A), Feb 18, 2002: Cessna 177, Pond Creek, OK, Substantial damage. (.19) On February 18, 2002, at 1330 central standard time, a Cessna 177 airplane, N3402T, was substantially damaged when it impacted terrain near Pond Creek,… ## Docket (3 files) The files NTSB released with the investigation on July 15, 2002, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=54218. 433 KB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 333 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40162749&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Master.PDF - Pilot Statement (item 2, .PDF, 66 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40162750&FileExtension=.PDF&FileName=Pilot%20Statement-Master.PDF - 72-Hour Sleep Log (item 3, .PDF, 33 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40162752&FileExtension=.PDF&FileName=72-Hour%20Sleep%20Log-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.