# NTSB LAX93LA253: Cessna 152, N6457L, Tracy, CA, June 13, 1993 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: June 13, 1993, 08:45 local (15:45 UTC) - Place: Tracy, CA - Coordinates: 37.730167, -121.420486 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=37.7302&lon=-121.4205&mi=10 - Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed, report June 30, 1994 - Report: Approved by Office Director - NTSB case key (mKey): 28406 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX93LA253 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/28406/pdf - Page: https://openairdocs.org/ntsb/LAX93LA253 ## Probable cause THE FAILURE OF DUAL STUDENT TO MAINTAIN AN ADEQUATE AIRSPEED DURING THE GO AROUND INITIATION, AND, THE INADEQUATE SUPERVISION OF THE FLIGHT BY THE INSTRUCTOR. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Loss of control - in flight, go-around (vfr) - raising of flaps - performed, pilot in command(cfi) - airspeed - not maintained, dual student (cause) - stall/mush - inadvertent, dual student - supervision - inadequate, pilot in command(cfi) (cause) - In flight collision with terrain/water, descent - uncontrolled ## Analysis The operator and ground based witnesses to the accident reported that the instructor and student were practicing touch and go operations on runway 7. During the approach to the runway, the instructor had the student initiate a go around. The ground witnesses reported that the aircraft pitched nose up as the power was applied, then the flaps began to retract. The witnesses said the aircraft nose rose higher and the aircraft stalled, then crashed on the runway nose first. The instructor said that as the go around was initiated she added full power and began retracting the flaps 'not knowing the student would pull up on the controls.' The instructor reported that as the flaps retracted past 30 degrees of extension the aircraft stalled with no warning. ## Factual narrative On June 13, 1993, at 0845 Pacific daylight time, a Cessna 152, N6457L, collided with the runway during a practice go around while performing traffic pattern operations at the Tracy, California, airport. The aircraft was owned and operated by Affordable Aviation of Pleasanton, California, and was rented by the pilot for a local area dual instructional flight. Visual meteorological conditions prevailed at the time and no flight plan was filed. The aircraft incurred substantial damage. Neither the certificated commercial pilot flight instructor nor the non certificated dual primary student were injured. The flight originated at the Livermore, California, airport on the day of the mishap at about 0730 hours as a local area dual instructional flight. During a telephone interview on June 18, 1993, the flight instructor declined to make a verbal statement. The operator and ground based witnesses to the accident reported in interviews that the instructor and student were practicing touch and go operations on runway 7 at the Tracy airport. During the accident sequence approach to the runway, the instructor had the student initiate a go around. The ground witnesses reported that the aircraft pitched nose up as the power was applied, then the flaps began to retract. The witnesses said the aircraft nose rose higher and the aircraft apparently stalled, then crashed on the runway nose first. In her written statement, the instructor said that as the go around was initiated she added full power and began retracting the flaps "not knowing the student would pull up on the controls." The instructor reported that as the flaps retracted past 30 degrees of extension the aircraft stalled with no warning. ## Aircraft - Registration: [N6457L](https://openairdocs.org/deregistered/N6457L-2011-01-07), registration cancelled 2011-01-07, S/N 15284399, built 1980 (OpenAirDocs) - Reported make and model: CESSNA 152 - Registry model: [Cessna 152](https://openairdocs.org/model/cessna-152) (registry code 2071835) (OpenAirDocs) - Registry engine: [Lycoming O-235-L2C](https://openairdocs.org/engine/lycoming-o-235-l2c) (registry code 42035, 4 cycle) (OpenAirDocs) - Category: Airplane - Serial number: 15284399 - Airframe hours: 4957 - Engines: LYCOMING O-235-L2C 110 horsepower reciprocating - Damage: Substantial damage - Flight: Instructional, Part 91 - Operator: Affordable Aviation - Registered owner: Richard F. Sine - Airworthiness certificate: Standard, Normal - Last inspection: 100 hour, April 13, 1993, 80 hours before - Departed: LVK, LIVERMORE, CA - Airport: TCY, Tracy Muni, runway 7, 3,418 × 100 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 25; flight instructor, commercial; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--no waivers/lim.; seat: right; flight hours: 1,174 total, 100 in this make and model, 1,040 as pilot in command, 116 in the last 90 days, 45 in the last 30 days, 1 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Visibility: 30 statute miles - Lowest ceiling: none - Temperature: 75 °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 19930613018019A](https://openairdocs.org/incident/19930613018019A), Jun 13, 1993: Cessna 152, Tracy, CA, Substantial damage. Gave primary student go around. CFI added power and began raising flaps. Allowed student pull nose up and stall. ## Other investigations on N6457L (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 FTW85LA147](https://openairdocs.org/ntsb/FTW85LA147), Mar 4, 1985: Cessna 152 (N6457L), Andrews, TX, substantial damage 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.