# NTSB DFW07CA099: Cessna 152, N49108, San Antonio, TX, April 28, 2007 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: April 27, 2007, 21:27 local (Apr 28, 2007, 02:27 UTC) - Place: San Antonio, TX - Coordinates: 29.5272222222222, -98.4655555555556 - Nearby events: https://openairdocs.org/map.md?lat=29.5272&lon=-98.4656&mi=10 - Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed, report June 27, 2007 - Report: Approved by Office Director - Parties: Federal Aviation Administration - NTSB case key (mKey): 65659 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DFW07CA099 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/65659/pdf - Page: https://openairdocs.org/ntsb/DFW07CA099 ## Probable cause The single-engine pilot's failure to avoid the jet blast while taxiing and the ground controller's inattentiveness to the situation, which resulted in the airplane's being blown over. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Propeller blast or jet exhaust/suction, taxi - propeller/jet blast encounter - encountered, pilot in command (cause) - air/ground communications - inattentive, atc personnel(lcl/gnd/clnc) (cause) - Roll over, taxi ## Analysis The single-engine airplane was blown over by the jet blast of a departing twin-turbine powered airliner while taxing. The single-engine airplane had been instructed by the ATC ground controller to taxi to a parking area via a taxiway that crossed behind the waiting airliner. Meanwhile, the scheduled airliner was issued a takeoff clearance. As the airliner powered-up to enter the active runway for departure, the jet blast rolled the single-engine airplane over to an inverted position. The private pilot and passenger were able to exit the airplane unassisted. The single-engine airplane's right wing sustained structural damage. The airliner, unaware of what had occurred, departed the airport. According to the Aeronautical Information Manual, chapter 7, paragraph 7-3-8 a, "...the flight disciplines necessary to ensure vortex avoidance during VFR operations must be exercised by the pilot." According to FAA order 7110.65R, ground controllers are to "Use caution when taxiing smaller aircraft/helicopters in the vicinity of larger aircraft." ## Factual narrative The single-engine airplane was blown over by the jet blast of a departing twin-turbine powered airliner while taxing. The single-engine airplane had been instructed by the ATC ground controller to taxi to a parking area via a taxiway that crossed behind the waiting airliner. Meanwhile, the scheduled airliner was issued a takeoff clearance. As the airliner powered-up to enter the active runway for departure, the jet blast rolled the single-engine airplane over to an inverted position. The private pilot and passenger were able to exit the airplane unassisted. The single-engine airplane's right wing sustained structural damage. The airliner, unaware of what had occurred, departed the airport. According to the Aeronautical Information Manual, chapter 7, paragraph 7-3-8 a, "...the flight disciplines necessary to ensure vortex avoidance during VFR operations must be exercised by the pilot." According to FAA order 7110.65R, ground controllers are to "Use caution when taxiing smaller aircraft/helicopters in the vicinity of larger aircraft." ## Aircraft - Registration: [N49108](https://openairdocs.org/deregistered/N49108-2018-09-13), registration cancelled 2018-09-13, S/N 15283421, built 1979 (OpenAirDocs) - Reported make and model: Cessna 152 - Registry model: [Cessna 152](https://openairdocs.org/model/cessna-152) (registry code 2071835) (OpenAirDocs) - Registry engine: [Lycoming 0-235 series](https://openairdocs.org/engine/lycoming-0-235-series) (registry code 41505, 4 cycle) (OpenAirDocs) - Category: Airplane - Serial number: 15283421 - Engines: Lycoming 0-235 reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Registered owner: Alpha Tango Flying Service Inc. - Airworthiness certificate: Standard, Normal - Departed: SAT, San Antonio, TX - Airport: SAT, San Antonio Intl ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 27; injuries: none; private; airplane ratings: single-engine land; medical: class 3, without waivers/limitations; last flight review February 1, 2007; seat: left; flight hours: 150 total, 150 in this make and model - Other flight crew; age 19; injuries: none; private; airplane ratings: single-engine land; medical: class 3, without waivers/limitations; seat: right ## Weather - Conditions: Visual (VMC), Day - Wind: 120° at 8 knots - Visibility: 6 statute miles - Lowest ceiling: 25,000 ft broken - Temperature: 68 °F, dew point 61 °F - Altimeter: 30.00 inHg - Observed at: KSAT ## Other investigations on N49108 (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 CEN13LA354](https://openairdocs.org/ntsb/CEN13LA354), Jun 17, 2013: Cessna 152 (N49108), Carrizo Springs, TX, substantial damage. Probable cause: The pilot’s failure to identify the water contamination of the fuel system during his preflight inspection, which resulted in a total loss of engine power during the airplane’s initial climb. 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.