# NTSB DFW07CA003: Boeing 75, N27933, Sweetwater, TX, October 5, 2006 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: October 5, 2006, 14:00 local (19:00 UTC) - Place: Sweetwater, TX - Coordinates: 32.4666666666667, -100.466666666667 - Nearby events: https://openairdocs.org/map.md?lat=32.4667&lon=-100.4667&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed, report January 31, 2007 - Report: Approved by Office Director - Parties: FAA Lubbock FSDO - NTSB case key (mKey): 64690 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DFW07CA003 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/64690/pdf - Page: https://openairdocs.org/ntsb/DFW07CA003 ## Probable cause The pilot's failure to maintain directional control while landing. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Loss of control - on ground/water, landing - directional control - not maintained, pilot in command (cause) - ground loop/swerve - encountered, pilot in command ## Analysis The 4,319-hour airline transport rated pilot completed the third leg of his flight and was landing at an intermediate stop to refuel the 1941-vintage biplane. The pilot reported that he executed a normal approach for landing on runway 04 (a dry asphalt 5,659-foot long by 75-foot wide runway) with the winds being reported from 050 degrees at 5 knots. During the landing flare for a three-point landing, the pilot reported that the nose of the airplane began to veer to the right and roll to the left. The pilot attempted to correct for the drift when the airplane exited the right side of the runway and ground looped. During the ground loop, the fabric-covered left wing impacted the ground resulting in structural damage to the left wing strut. The pilot, who was uninjured, reported having accumulated a total of 11-hours in the make and model. ## Factual narrative The 4,319-hour airline transport rated pilot completed the third leg of his flight and was landing at an intermediate stop to refuel the 1941-vintage biplane. The pilot reported that he executed a normal approach for landing on runway 04 (a dry asphalt 5,659-foot long by 75-foot wide runway) with the winds being reported from 050 degrees at 5 knots. During the landing flare for a three-point landing, the pilot reported that the nose of the airplane began to veer to the right and roll to the left. The pilot attempted to correct for the drift when the airplane exited the right side of the runway and ground looped. During the ground loop, the fabric-covered left wing impacted the ground resulting in structural damage to the left wing strut. The pilot, who was uninjured, reported having accumulated a total of 11-hours in the make and model. ## Aircraft - Registration: [N27933](https://openairdocs.org/aircraft/N27933), registered now, S/N 75-630, built 1941 (OpenAirDocs) - Reported make and model: Boeing 75 - Registry model: [Boeing 75](https://openairdocs.org/model/boeing-75) (registry code 1380104) (OpenAirDocs) - Registry engine: [Continental R670-SERIES series](https://openairdocs.org/engine/continental-r670-series-series) (registry code 17016, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 75-630 - Airframe hours: 12280 - Engines: Continental R670 220 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Registered owner: American Airpower Heritage Fly Museum - Airworthiness certificate: Standard, Normal - Departed: KETN, Eastland, TX - Destination: KSWW, Sweetwater, TX - Airport: KSWW, Avenger Field, runway 4, 5,659 × 75 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 43; injuries: none; airline transport, private; airplane ratings: multi-engine land, single-engine land; medical: class 3, without waivers/limitations; last flight review September 1, 2006; seat: rear; flight hours: 4,319 total, 11 in this make and model, 3,759 as pilot in command, 55 in the last 90 days, 17 in the last 30 days, 3 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Visibility: 30 statute miles - Lowest ceiling: none - Temperature: 81 °F ## 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 20061005020349A](https://openairdocs.org/incident/20061005020349A), Oct 5, 2006: Boeing 75, Sweetwater, TX, Substantial damage. (-23) On October 5, 2006, at 1400 CDT, the pilot of N27933 executed a landing to runway 4 at Avenger field (ksww) near Sweetwater, Texas. Upon landing, the… ## Other investigations on N27933 (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 FTW90DPA04](https://openairdocs.org/ntsb/FTW90DPA04), Jun 4, 1990: Boeing A75N1 (N27933), Longview, TX, substantial damage. Probable cause: THE PILOT'S ABRUPT USE OF THE WHEEL BRAKES DURING THE LANDING ROLL. 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.