# NTSB LAX91LA125: Cessna 152, N25378, Van Nuys, CA, March 3, 1991 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: March 3, 1991, 15:00 local (23:00 UTC) - Place: Van Nuys, CA - Coordinates: 34.189945, -118.490386 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=34.1899&lon=-118.4904&mi=10 - Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 3 uninjured - Status: Completed, report April 23, 1993 - Report: Approved by Office Director - NTSB case key (mKey): 27132 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX91LA125 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/27132/pdf - Page: https://openairdocs.org/ntsb/LAX91LA125 ## Probable cause (aircraft 2) THE FAILURE OF THE CFI ABOARD N25378 TO ADEQUATELY SUPERVISE THE FLIGHT AND THE DUAL STUDENT PILOT'S IMPROPER USE OF THE NORMAL BRAKES. ## Probable cause (aircraft 1) THE FAILURE OF THE CFI ABOARD N25378 TO ADEQUATELY SUPERVISE THE FLIGHT AND THE DUAL STUDENT PILOT'S IMPROPER USE OF THE NORMAL BRAKES. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - On ground/water collision with object, taxi - to takeoff - object - aircraft parked/standing - supervision - inadequate, pilot in command(cfi) (cause) - brakes(normal) - improper use of, dual student (cause) - On ground/water collision with object, standing - engine(s) operating - object - aircraft moving on ground - supervision - inadequate, pilot of other aircraft (cause) - brakes(normal) - improper use of, pilot of other aircraft (cause) ## Analysis (aircraft 2) THE CESSNA 152 DEPARTED FOR A DUAL INSTRUCTIONAL FLIGHT AND THE CFI RECEIVED CLEARANCE TO TAXI FOR AN INTERSECTION TAKEOFF AT 10G. THE PIPER TRIPACER WAS STANDING AT 10G AWAITING TAKEOFF CLEARANCE. THE CFI INSTRUCTED THE STUDENT TO GO AROUND AND PARK BEHIND THE PIPER. THE CFI FAILED TO ADEQUATELY SUPERVISE THE STUDENT AS HE (THE STUDENT) BEGAN THE TURN. HE INADVERTENTLY LOCKED THE BRAKES CAUSING THE AIRPLANE TO TURN SHARPLY TO THE RIGHT. THE CESSNA'S RIGHT WING STRUCK THE TAIL OF THE PIPER CAUSING SUBSTANTIAL DAMAGE TO THE PIPER. THE CESSNA RECEIVED MINOR WING TIP DAMAGE. ## Analysis (aircraft 1) THE CESSNA 152 DEPARTED FOR A DUAL INSTRUCTIONAL FLIGHT AND THE CFI RECEIVED CLEARANCE TO TAXI FOR AN INTERSECTION TAKEOFF AT 10G. THE PIPER TRIPACER WAS STANDING AT 10G AWAITING TAKEOFF CLEARANCE. THE CFI INSTRUCTED THE STUDENT TO GO AROUND AND PARK BEHIND THE PIPER. THE CFI FAILED TO ADEQUATELY SUPERVISE THE STUDENT AS HE (THE STUDENT) BEGAN THE TURN HE INADVERTENTLY LOCKED THE BRAKES CAUSING THE AIRPLANE TO TURN SHARPLY TO THE RIGHT. THE CESSNA'S RIGHT WING STRUCK THE TAIL OF THE PIPER CAUSING SUBSTANTIAL DAMAGE TO THE PIPER. THE CESSNA RECEIVED MINOR WING TIP DAMAGE. ## Aircraft 1 - Registration: [N25378](https://openairdocs.org/deregistered/N25378-1997-09-11), registration cancelled 1997-09-11, S/N 15280625 (OpenAirDocs) - Reported make and model: CESSNA 152 - Registry model: [Cessna 152](https://openairdocs.org/model/cessna-152) (registry code 2071835) (OpenAirDocs) - Category: Airplane - Engines: LYCOMING O-235 110 horsepower reciprocating - Damage: Minor damage - Flight: Instructional, Part 91 - Operator: Konski, Yehiam - Registered owner: Konski, Yehiam - Last inspection: Unknown, January 2, 2000 - Airport: VNY, Van Nuys ## Aircraft 2 - Registration: [N2505A](https://openairdocs.org/aircraft/N2505A), registered now, S/N 22-816, built 1952 (OpenAirDocs) - Reported make and model: PIPER PA-22-135 - Registry model: [Piper PA-22-135](https://openairdocs.org/model/piper-pa-22-135) (registry code 7102206) (OpenAirDocs) - Registry engine: [Lycoming 0-290 series](https://openairdocs.org/engine/lycoming-0-290-series) (registry code 41506, 4 cycle) (OpenAirDocs) - Category: Airplane - Serial number: 22-816 - Engines: LYCOMING O-290 135 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Operator: Keough, Casey P. - Registered owner: Keough, Casey P. - Airworthiness certificate: Standard, Normal - Last inspection: Unknown, January 2, 2000 - Destination: LGB, LONG BEACH, CA - Airport: VNY, Van Nuys ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot, aircraft N25378; age 25; flight instructor, commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; flight hours: 1,300 total, 25 in this make and model, 1,050 as pilot in command, 350 in the last 90 days, 110 in the last 30 days, 5 in the last 24 hours - Pilot, aircraft N2505A; private; medical: unknown, unknown; seat: left ## Weather - Conditions: Visual (VMC), Day - Wind: calm - Visibility: 7 statute miles - Lowest ceiling: none - Observed at: VNY, 1 nm away ## FAA reports on this event (2) The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs). - [Accident 19910303011071A](https://openairdocs.org/incident/19910303011071A), Mar 3, 1991: Cessna 152, Van Nuys, CA, Minor damage. Student locked a brake while attempting to taxi around N2505A that was holding on runup pad. CFI took over too late - [Accident 19910303011072A](https://openairdocs.org/incident/19910303011072A), Mar 3, 1991: Piper PA22135, Van Nuys, CA, Substantial damage. While holding on runup pad,empennage was hit by wing of aircraft taxiing for takeoff, N25378,pilot locked a brake. 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.