# NTSB LAX94LA086: Cessna 172N, N7553E, El Monte, CA, December 30, 1993 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: December 30, 1993, 12:30 local (20:30 UTC) - Place: El Monte, CA - Coordinates: 34.080097, -118.029548 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=34.0801&lon=-118.0295&mi=10 - Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report September 13, 1994 - Report: Approved by Office Director - NTSB case key (mKey): 28631 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX94LA086 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/28631/pdf - Page: https://openairdocs.org/ntsb/LAX94LA086 ## Probable cause THE PILOT'S DELAYED DECISION TO ABORT THE TAKEOFF AND IMPROPER USE OF THE AIRPLANE'S THROTTLE. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Overrun, takeoff - aborted - aborted takeoff - delayed, pilot in command (cause) - throttle/power control - improper use of, pilot in command (cause) - On ground/water collision with object, landing - roll - object - fence - object - tree(s) ## Analysis THE PILOT ABORTED TAKEOFF DURING A TOUCH-AND-GO MANEUVER AND OVERRAN THE RUNWAY AT THE DEPARTURE END. WITNESSES HEARD THE ENGINE ACCELERATE DURING THE ABORT ATTEMPT. THE PILOT APPLIED THE BRAKES BEFORE RETARDING THE THROTTLE. THE AIRPLANE LOST TRACTION WHEN THE BRAKING ACTION COULD NOT OVERCOME THE ENGINE POWER WHICH EXTENDED THE LANDING ROLL. ## Factual narrative On December 30, 1993, at 1230 hours Pacific standard time, a Cessna 172N, N7553E, collided with the airport perimeter fence and a tree after experiencing an on-round loss of control during an aborted takeoff from runway 19 at the El Monte Airport, El Monte, California. The certificated private pilot was practicing touch-and-go landings at the time. The airplane, operated by Aero Association of CalTech, Inc., Pasadena, California, was substantially damaged. The pilot, the sole occupant, was not injured. Visual meteorological conditions prevailed. The winds were reported calm. The pilot indicated that he had landed, configured the airplane for takeoff while rolling, and added full power. The pilot stated the airplane's acceleration appeared slow and did not reach the fifty-seven (57) knots rotation speed as anticipated. The pilot decided to abort the takeoff at a predetermined GO/NO-GO point located about 1,000 feet from the runway's departure end. When the pilot applied the airplane's brakes, the airplane swerved to the left and entered a newly resurfaced taxiway. The airplane slid off the taxiway's left shoulder adjacent to the runway's departure end and struck the fence and tree. According to the pilot, the left main landing gear tire left solid skid marks on the runway and the right main landing gear tire left intermittent skid marks. Witnesses told National Transportation Safety Board investigators they heard the airplane accelerating after hearing the tires begin to squeal during brake application. The witnesses also said the pilot did not fully close the throttle until the airplane was about 150 feet from the departure end of runway 19. ## Aircraft - Registration: [N7553E](https://openairdocs.org/aircraft/N7553E), registered now, S/N 17272106, built 1978 (OpenAirDocs) - Reported make and model: CESSNA 172N - Registry model: [Cessna 172N](https://openairdocs.org/model/cessna-172n) (registry code 2072434) (OpenAirDocs) - Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 172 272106 - Airframe hours: 3713 - Engines: Continental O-360-A4M 180 lbs thrust reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Operator: Aero Assn Of Caltech, Inc. - Registered owner: Mc Andrew, William - Airworthiness certificate: Standard, Normal - Last inspection: 100 hour, November 4, 1993, 41 hours before - Departed: EMT - Destination: EMT - Airport: EMT, El Monte, runway 19, 4,000 × 75 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 33; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 96 total, 3 in this make and model, 35 as pilot in command, 33 in the last 90 days, 18 in the last 30 days, 2 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: calm - Visibility: 50 statute miles - Lowest ceiling: none - Altimeter: 30.00 inHg - Observed at: EM, 1 nm away ## 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 19931230047449A](https://openairdocs.org/incident/19931230047449A), Dec 30, 1993: Cessna 172N, El Monte, CA, Substantial damage. On touch and go beleive speed slow aborted. Lost control. Veered off runway into fence. Closed throttle late. 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.