# NTSB LAX05LA199: Cessna 172M, N1126U, Carlsbad, CA, June 10, 2005 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: June 10, 2005, 13:45 local (20:45 UTC) - Place: Carlsbad, CA - Coordinates: 33.128334, -117.280281 - Nearby events: https://openairdocs.org/map.md?lat=33.1283&lon=-117.2803&mi=10 - Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 3 uninjured - Status: Completed, report February 28, 2006 - Report: Approved by Office Director - Parties: Federal Aviation Administration - NTSB case key (mKey): 61715 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX05LA199 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/61715/pdf - Page: https://openairdocs.org/ntsb/LAX05LA199 ## Probable cause (aircraft 2) the other pilot's inadequate visual lookout and failure to maintain separation while taxiing. ## Probable cause (aircraft 1) the pilot's inadequate visual lookout and failure to maintain separation while taxiing, which resulted in a collision with another airplane. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Collision between aircraft (other than midair), taxi - to takeoff - object - aircraft parked/standing - visual lookout - inadequate, pilot in command (cause) - clearance - not maintained, pilot in command (cause) - Collision between aircraft (other than midair), standing - engine(s) operating - visual lookout - inadequate, pilot of other aircraft (cause) - object - aircraft moving on ground - clearance - not maintained, pilot of other aircraft (cause) ## Analysis (aircraft 2) While holding in the run-up area awaiting a takeoff clearance, the right wing tip of another Cessna 172 that was taxiing to the runway from the run-up area hit the airplane's tail section. After being cleared for takeoff, the other pilot had to taxi between a jet, also holding short of the runway, and this airplane. ## Analysis (aircraft 1) While taxiing from the run up area to the runway, the airplane's right wing tip hit the tail section of another Cessna 172 that was holding in the run-up area awaiting a takeoff clearance. After being cleared for takeoff, the pilot had to taxi between a jet, also holding short of the runway, and the other Cessna 172. ## Factual narrative (aircraft 2) On June 10, 2005, about 1345 Pacific daylight time, a Cessna 172, N1126U, impacted the tail section of another Cessna 172, N587SP, with its right wing tip while taxiing to the runway at McClellan-Palomar Airport (CRQ), Carlsbad, California. Pinnacle Aviation Academy, Inc., was operating both airplanes under the provisions of 14 CFR Part 91. The private pilot (sole occupant) of N1126U was not injured, and the student pilot and certified flight instructor (CFI) on board N587SP were not injured. N1126U sustained minor damage and N587SP sustained substantial damage. Visual meteorological conditions prevailed, and no flight plan had been filed. The local flight was originating at the time of the accident. The pilots of both airplanes submitted a Pilot/Operator Aircraft Accident Report (NTSB Form 6120.1/2). The pilot of N1126U taxied to the run up area and completed the run up. He called the control tower for a right closed traffic, touch-and-go clearance but due to other aircraft priorities, the tower could not give him clearance for about 10 minutes. When the tower cleared him for takeoff, he had to taxi between a jet and N587SP. While taxiing, the right wing tip of N1126U hit the tail section of N587SP. At the time of impact, N587SP was holding short of runway 24 at taxiway A1. N587SP was facing north-northeast and was impacted from behind; N1126U was taxiing in a westerly direction. The impact bent the rudder and buckled the vertical stabilizer of N587SP. The pilot of N1126U stated that the airplane and engine had no mechanical failures or malfunctions up to the time of the collision. ## Factual narrative (aircraft 1) On June 10, 2005, about 1345 Pacific daylight time, a Cessna 172M, N1126U, impacted the tail section of another Cessna 172S, N587SP, with its right wing tip while taxiing to the runway at McClellan-Palomar Airport (CRQ), Carlsbad, California. Pinnacle Aviation Academy, Inc., was operating both airplanes under the provisions of 14 CFR Part 91. The private pilot (sole occupant) of N1126U was not injured, and the student pilot and certified flight instructor (CFI) on board N587SP were not injured. N1126U sustained minor damage and N587SP sustained substantial damage. Visual meteorological conditions prevailed, and no flight plan had been filed. The local flight was originating at the time of the accident. The pilots of both airplanes submitted a Pilot/Operator Aircraft Accident Report (NTSB Form 6120.1/2). The pilot of N1126U taxied to the run up area and completed the run up. He called the control tower for a right closed traffic, touch-and-go clearance but due to other aircraft priorities, the tower could not give him clearance for about 10 minutes. When the tower cleared him for takeoff, he had to taxi between a jet and N587SP. While taxiing, the right wing tip of N1126U hit the tail section of N587SP. The impact bent the rudder and buckled the vertical stabilizer of N587SP. The pilot stated that the airplane and engine had no mechanical failures or malfunctions up to the time of the collision. ## Aircraft 1 - Registration: [N1126U](https://openairdocs.org/deregistered/N1126U-2020-12-05), registration cancelled 2020-12-05, S/N 17266855, built 1976 (OpenAirDocs) - Reported make and model: Cessna 172M - Registry model: [Cessna 172M](https://openairdocs.org/model/cessna-172m) (registry code 2072418) (OpenAirDocs) - Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 17266855 - Engines: Lycoming O-320 150 horsepower reciprocating - Damage: Minor damage - Flight: Personal, Part 91 - Registered owner: Pinnacle Aviation Services Inc - Airworthiness certificate: Standard, Normal - Departed: CRQ, Carlsbad, CA - Destination: CRQ - Airport: CRQ, Mc Clellan-Palomar ## Aircraft 2 - Registration: [N587SP](https://openairdocs.org/aircraft/N587SP), registered now, S/N 172S8518, built 2000 (OpenAirDocs) - Reported make and model: Cessna 172S - Registry model: [Cessna 172S](https://openairdocs.org/model/cessna-172s) (registry code 2072439) (OpenAirDocs) - Registry engine: [Lycoming I0360 series](https://openairdocs.org/engine/lycoming-i0360-series) (registry code 41515, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 172S8518 - Engines: Textron Lycoming IO-360-L2A 180 horsepower reciprocating - Damage: Substantial damage - Flight: Instructional, Part 91 - Operator: Pinnacle Aviation Academy Inc - Registered owner: Skyhawk Leasing LLC - Airworthiness certificate: Standard, Utility; Standard, Normal - Departed: CRQ, Carlsbad, CA - Destination: CRQ - Airport: CRQ, Mc Clellan-Palomar ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot, aircraft N1126U; age 62; injuries: none; private; airplane ratings: single-engine land; medical: class 3, with waivers/limitations; last flight review April 1, 2005; seat: left; flight hours: 210 total, 210 in this make and model, 63 as pilot in command, 9 in the last 90 days, 4 in the last 30 days, 0 in the last 24 hours - Flight instructor, aircraft N587SP; age 34; injuries: none; flight instructor, commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 2, with waivers/limitations; last flight review August 1, 2004; seat: right; flight hours: 850 total, 227 in this make and model, 773 as pilot in command, 217 in the last 90 days, 95 in the last 30 days, 4 in the last 24 hours - Student pilot, aircraft N587SP; age 26; injuries: none; student; medical: class 2, with waivers/limitations; seat: left ## Weather - Conditions: Visual (VMC), Day - Wind: 250° at 8 knots - Visibility: 10 statute miles - Lowest ceiling: 1,600 ft broken - Temperature: 66 °F, dew point 57 °F - Altimeter: 29.84 inHg - Observed at: CRQ ## 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 20050610019849A](https://openairdocs.org/incident/20050610019849A), Jun 10, 2005: Cessna 172M, Carlsbad, CA, Minor damage. (-23) [privacy data omitted] the private pilot of N1126U (sole occupant of aircraft) was holding for takeoff clearance in the runup area for runway 24 at crq.… - [Accident 20050610019949A](https://openairdocs.org/incident/20050610019949A), Jun 10, 2005: Cessna 172S, Carlsbad, CA, Substantial damage. (-23) The pilot [privacy data omitted] was waiting for takeoff clearance, with his student, in the runup area for runway 24 at crq when his plane was struck… ## Other investigations on N1126U (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 ERA20CA102](https://openairdocs.org/ntsb/ERA20CA102), Feb 16, 2020: Cessna 172 (N1126U), Rochester, NY, substantial damage. Probable cause: The pilot's failure to maintain airplane control during a go-around. Contributing to the accident was the pilot’s decision to take off after perceiving a rudder issue during taxi operations. 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.