# NTSB LAX89LA174: Great Lakes 2T-1A-2, N6220L, Ramona, CA, April 29, 1989 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: April 29, 1989, 14:00 local (21:00 UTC) - Place: Ramona, CA - Coordinates: 33.069362, -116.829437 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=33.0694&lon=-116.8294&mi=10 - Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 3 uninjured - Status: Completed, report May 22, 1990 - Report: Approved by Office Director - NTSB case key (mKey): 26392 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX89LA174 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/26392/pdf - Page: https://openairdocs.org/ntsb/LAX89LA174 ## Probable cause (aircraft 2) THE PILOT OF THE OTHER AIRCRAFT DID NOT MAINTAIN AN ADEQUATE VISUAL LOOKOUT AND COLLIDED WITH THIS CESSNA THAT WAS PARKED IN THE RUNUP AREA. ## Probable cause (aircraft 1) THE PILOTS FAILURE TO MAINTAIN AN ADEQUATE VISUAL LOOKOUT DURING TAXI TO TAKEOFF WHICH RESULTED IN A COLLISION WITH ANOTHER AIRCRAFT THAT WAS PARKED IN THE RUNUP AREA. ## 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 (contributing factor) - visual lookout - not maintained, pilot in command (cause) - On ground/water collision with object, standing - engine(s) operating - object - aircraft moving on ground (contributing factor) - visual lookout - not maintained, pilot of other aircraft (cause) ## Analysis (aircraft 2) WHILE TAXIING TO THE RUNWAY, A GREAT LAKES COLLIDED WITH A CESSNA 172 THAT WAS PARKED IN THE RUNUP AREA. THE PILOT OF THE GREAT LAKES REPORTED THAT HE WAS SEATED IN THE REAR SEAT AND FORWARD VISIBLITY IS RESTRICTED. THE GREAT LAKES COLLIDED WITH THE CESSNA FROM THE RIGHT REAR. ## Analysis (aircraft 1) WHILE TAXIING TO THE RUNWAY, A GREAT LAKES COLLIDED WITH A CESSNA 172 THAT WAS PARKED IN THE RUNUP AREA. THE PILOT OF THE GREAT LAKES REPORTED THAT HE WAS SEATED IN THE REAR SEAT AND FORWARD VISIBILITY IS RESTRICTED. THE GREAT LAKES COLLIDED WITH THE RIGHT REAR OF THE CESSNA. ## Aircraft 1 - Registration: [N6220L](https://openairdocs.org/deregistered/N6220L-2018-05-30), registration cancelled 2018-05-30, S/N 0732, built 1976 (OpenAirDocs) - Reported make and model: GREAT LAKES 2T-1A-2 - Registry model: [Great Lakes 2T-1A-2](https://openairdocs.org/model/great-lakes-2t-1a-2) (registry code 3910101) (OpenAirDocs) - Registry engine: [Lycoming AEIO-360 series](https://openairdocs.org/engine/lycoming-aeio-360-series) (registry code 41522, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 0732 - Airframe hours: 1280 - Engines: LYCOMING AEI0-360-B1G6 reciprocating - Damage: Minor damage - Flight: Personal, Part 91 - Registered owner: Great Lakes Associates Inc. - Airworthiness certificate: Standard, Aerobatic - Last inspection: Annual, April 15, 1989, 14 hours before - Airport: L39, Ramona, runway 27, 4,000 × 150 ft, asphalt ## Aircraft 2 - Registration: N31303 (not matched to a registry record) - Reported make and model: CESSNA 172E - Category: Airplane - Serial number: 17250609 - Airframe hours: 4320 - Engines: CONTINENTAL O-300 145 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Registered owner: Stephen K. Weston - Airworthiness certificate: Standard, Normal - Last inspection: Annual, March 3, 1989, 20 hours before - Airport: L39, Ramona, runway 27, 4,000 × 150 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot, aircraft N6220L; age 35; private; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 3, valid medical--no waivers/lim.; seat: rear; flight hours: 391 total, 96 in this make and model, 275 as pilot in command, 10 in the last 90 days, 1 in the last 24 hours - Pilot, aircraft N31303; age 43; commercial; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; seat: left; flight hours: 2,999 total, 40 in this make and model, 2,969 as pilot in command, 9 in the last 90 days, 1 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 270° at 6 knots - Visibility: 20 statute miles - Lowest ceiling: none - Temperature: 75 °F - Altimeter: 29.00 inHg ## 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 19890429010342A](https://openairdocs.org/incident/19890429010342A), Apr 29, 1989: Grtlks 2T1A2, Ramona, CA, Minor damage. While taxiing for takeoff struck a 172 on the runup pad with engine idling. Pilot said was unable to see over nose. - [Accident 19890429010341A](https://openairdocs.org/incident/19890429010341A), Apr 29, 1989: Cessna 172E, Ramona, CA, Substantial damage. Was struck by a taxiing biplane while sitting in runup area with engine idling. Biplane is blind forward for taxi. 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.