# NTSB LAX05CA250: Ayres S2R-134, N4003Z, Kerman, CA, July 30, 2005 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: July 30, 2005, 11:30 local (18:30 UTC) - Place: Kerman, CA - Coordinates: 36.7, -120.033332 - Nearby events: https://openairdocs.org/map.md?lat=36.7000&lon=-120.0333&mi=10 - Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report October 27, 2005 - Report: Approved by Office Director - Parties: Federal Aviation Administration - NTSB case key (mKey): 62107 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX05CA250 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/62107/pdf - Page: https://openairdocs.org/ntsb/LAX05CA250 ## Probable cause the pilot's failure to obtain an adequate airspeed during an attempted takeoff. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Overrun, takeoff - roll/run - airport facilities,runway/landing area condition - short runway/landing area - airspeed(vlof) - not obtained, pilot in command (cause) - On ground/water encounter with terrain/water, takeoff - roll/run - terrain condition - high vegetation - Nose over, takeoff - roll/run ## Analysis During the takeoff roll on the agricultural flight, the airplane failed to become airborne prior to rolling off the departure end of the runway, becoming entangled with bushes, and nosing over. The pilot had previously performed five spray flights from the dirt airstrip without mishap. The airplane had been reloaded and hot refueled between the flights. For the accident takeoff, the chemical load had been reduced from 350 gallons to 300 gallons at the pilot's request because the ambient air temperature was warming up. No mechanical malfunctions occurred with the airplane during the flight. ## Factual narrative On July 30, 2005, about 1130 Pacific daylight time, an Ayres S2R-134, N4003Z, overran the departure end of the runway, became entangled with bushes, and nosed over during the takeoff roll from a private airstrip near Kerman, California. The airplane was owned and operated by Mid Cal Ag Aviation, Inc., in Kerman, and it was substantially damaged. The commercial pilot was not injured during the agricultural flight in the restricted category airplane. The flight was performed under the provisions of 14 CFR Part 137. Visual meteorological conditions prevailed. The local area flight originated from the airstrip about 0800. The pilot reported to the National Transportation Safety Board investigator that during the day he had performed five agricultural spray flights without mishap. The airplane had been hot refueled and reloaded between the flights. For the accident takeoff, the chemical load had been reduced from 350 gallons to 300 gallons at the pilot's request because the ambient air temperature was warming up. According to the operator, as evidenced by wheel marks in the dirt-surfaced runway, on the accident flight/takeoff the airplane had accelerated on the runway and it overran the departure end without lifting off. Thereafter, the airplane encountered weeds. The airplane nosed over when the weeds balled up under the airplane. The pilot reported to the Safety Board investigator that no mechanical malfunctions had occurred with the airplane during the flight. ## Aircraft - Registration: [N4003Z](https://openairdocs.org/deregistered/N4003Z-2015-05-14), registration cancelled 2015-05-14, S/N 6007, built 1979 (OpenAirDocs) - Reported make and model: Ayres S2R-134 - Registry model: [Ayres S2R-T34](https://openairdocs.org/model/ayres-s2r-t34) (registry code 0970106) (OpenAirDocs) - Registry engine: [Pratt & Whitney Canada PT6A-60A](https://openairdocs.org/engine/pratt-whitney-canada-pt6a-60a) (registry code 52043, turbo-prop) (OpenAirDocs) - Category: Airplane - Serial number: 6007 - Engines: Pratt & Whitney PT6A-60A turbo prop - Damage: Substantial damage - Flight: Aerial application, Part 137 - Operator: Mid Cal Ag Aviation, Inc. - Registered owner: Mid Cal Ag Aviation, Inc. - Airworthiness certificate: Special, Restricted (Special) - Departed: NONE, Kerman, CA - Destination: NONE, Kerman, CA - Airport: NONE, None, runway 09, 2,600 × 50 ft, dirt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 66; commercial, flight instructor; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 2; flight hours: 12,000 total, 300 in this make and model, 160 in the last 90 days, 50 in the last 30 days ## Weather - Conditions: Visual (VMC), Day ## 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 20050730017199A](https://openairdocs.org/incident/20050730017199A), Jul 30, 2005: Ayres S2RT34NORMAL, Kerman, CA, Substantial damage. (-23) Daily report received on 08-01-05 at 0655 am. Contacted aircraft owner, [privacy data omitted] at mid cal ag aviation inc. obtained name of the pilot and… 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.