# NTSB FTW03LA019: Air Tractor AT-602, N602GB, Plainview, TX, October 25, 2002 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: October 25, 2002, 15:00 local (20:00 UTC) - Place: Plainview, TX - Coordinates: 34.168056, -101.717224 - Nearby events: https://openairdocs.org/map.md?lat=34.1681&lon=-101.7172&mi=10 - Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report September 30, 2003 - Report: Approved by Office Director - Parties: Federal Aviation Administration FSDO - NTSB case key (mKey): 55957 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW03LA019 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/55957/pdf - Page: https://openairdocs.org/ntsb/FTW03LA019 ## Probable cause The pilot's failure to maintain clearance with the wires. Contributing factors were the low ceilings and the prevailing haze. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - In flight collision with object, maneuvering - aerial application - weather condition - haze/smoke (contributing factor) - weather condition - low ceiling (contributing factor) - clearance - not maintained, pilot in command (cause) - object - wire,static ## Analysis The pilot of the agricultural airplane reported that he had just completed spraying a field and climbed a few hundred feet to program the on-board GPS prior to proceeding to the next field to be sprayed. He further stated that while en route to the next field, the leading edge of the right wing collided with a guy wire from a recently erected 756-foot radio station transmitter tower at the 500-foot level. He reported that the impact with the guy wire resulted in a momentary loss of control and the airplane abruptly turned about 90 degrees. The pilot maintained control of the airplane and made an uneventful precautionary landing in an open wheat field approximately one mile southeast of the tower. The tower was not depicted in the Sectional Chart,; however, it was listed in the current Aeronautical Chart Bulletin in the Airport/Facility Directory. The weather at the time of the accident was reported at 1,100 feet overcast, with a visibility of 4 miles in haze. ## Factual narrative On October 25, 2002, at 1500 central daylight time, an Air Tractor AT-602 agricultural airplane, N602GB, was substantially damaged upon collision with the guy wire from a radio station transmission tower while maneuvering near Plainview, Texas. The airline transport pilot, sole occupant of the airplane, was not injured. The airplane was owned and operated by G.B. Aerial Applications, Inc., of Plains, Texas, under 14 Code of Federal Regulations Part 137. Visual meteorological conditions prevailed for the local aerial application flight for which a flight plan was not filed. The local flight originated from the operator's home base in Plains, Texas, approximately 30 minutes prior to the accident. The pilot reported to the FAA inspector, who traveled to the accident site, that he had just completed spraying a field west of the radio station tower and climbed a few hundred feet to program the on-board Global Positioning System (GPS) prior to proceeding to the next field to be sprayed. The 15,000-hour pilot reported that while en route to the next field, the leading edge of the right wing collided with a guy wire from the recently erected radio station transmitter tower for radio station KLZK-FM 97.3. The pilot reported that the impact with the guy wire resulted in a momentary loss of control and the airplane abruptly turned about 90 degrees towards the south. The pilot was able to regain control of the airplane by applying "almost full aileron and full rudder deflection." The airplane continued a flight path straight ahead, and the pilot located a suitable landing area. The pilot made an uneventful precautionary landing in an open wheat field approximately one mile southeast of the tower. A Deputy Sheriff for the Hale County Sheriff Department witnessed the airplane's collision with the tower and observed the tower collapsing to the ground. He was the first to respond to the accident site. Examination of the 1997- model PT6 powered airplane by the FAA inspector revealed that the right wing was displaced aft at the wing root, resulting in structural damage to the fuselage at the wing mount attaching area. Additionally, the leading edge of the right wing, the right aileron, the right wing flap, and the right hand spray boom were damaged. The restricted category airplane, serial number 602-0425, was equipped with an aerial application system for the eradication of the boll weevil. The airplane was reported to have impacted the 756-foot transmission tower at about the 500-foot level. The tower was not depicted on the Dallas Sectional Chart; however, it was listed in the current Aeronautical Chart Bulletin in the Airport/Facility Directory. The tower was knocked down and was reported as "destroyed." There were no reported injuries to anyone on the ground. At 1545, the weather observation facility at Plainview (PVW) reported winds from 250 degrees at 8 knots, a ceiling of 1,100 feet overcast, visibility of 4 statute miles in haze, a temperature of 12 degrees Centigrade, with a dew point of 10 degrees Centigrade. The altimeter setting was reported as 29.99 inches of Mercury. The Pilot/Operator Aircraft Accident Report (NTSB Form 6120.1/2) was not submitted by the pilot or the operator; however sufficient statements and information were provided by the pilot and the operator to support the accident investigation. ## Aircraft - Registration: [N602GB](https://openairdocs.org/aircraft/N602GB), registered now, S/N 602-0425, built 1997 (OpenAirDocs) - Reported make and model: Air Tractor AT-602 - Registry model: [Air Tractor AT-602](https://openairdocs.org/model/air-tractor-at-602) (registry code 0390309) (OpenAirDocs) - Registry engine: [Pratt & Whitney Canada PT6A-66 series](https://openairdocs.org/engine/pratt-whitney-canada-pt6a-66-series) (registry code 52118, turbo-prop) (OpenAirDocs) - Category: Airplane - Serial number: 602-04250 - Airframe hours: 3385 - Engines: Pratt & Whitney Canada PT6A-40 750 horsepower turbo prop - Damage: Substantial damage - Flight: Aerial application, Part 137 - Registered owner: G.B. Aerial Applications, Inc. - Airworthiness certificate: Special, Restricted (Special) - Departed: F98, Plains, TX ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 58; injuries: none; commercial, airline transport, flight instructor; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; last flight review April 25, 2002; seat: center; flight hours: 15,500 total, 120 in this make and model, 250 in the last 90 days ## Weather - Conditions: Visual (VMC), Day - Wind: 250° at 8 knots - Visibility: 4 statute miles - Lowest ceiling: 1,100 ft overcast - Temperature: 52 °F, dew point 48 °F - Altimeter: 30.04 inHg - Observed at: PVW ## 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 20021025030299A](https://openairdocs.org/incident/20021025030299A), Oct 25, 2002: Airtrc AT602, Plainview, TX, Substantial damage. (-23) The aircraft collided with the guy wires of a 750 foot radio tower. The leading edge of the right wing was peeled back when the plane hit the top third… ## Other investigations on N602GB (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 FTW98LA006](https://openairdocs.org/ntsb/FTW98LA006), Oct 3, 1997: Air Tractor AT-602 (N602GB), Plains, TX, substantial damage. Probable cause: The pilot's improper decision to initiate takeoff with a vehicle on the runway. 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.