# NTSB WPR14CA289: Piper PA 18-150, N83447, Chandler, AZ, July 11, 2014 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: July 11, 2014, 08:31 local (15:31 UTC) - Place: Chandler, AZ - Coordinates: 33.239929, -111.779174 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=33.2399&lon=-111.7792&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing-landing roll: Loss of control on ground](https://openairdocs.org/ntsb-events/230) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report September 24, 2014 - Report: Approved by Office Director - NTSB office: Western Pacific Region - NTSB case key (mKey): 89647 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=WPR14CA289 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/89647/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=89647 - Page: https://openairdocs.org/ntsb/WPR14CA289 ## Probable cause The pilot's failure to maintain directional control during the landing roll. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Use of equip/info: aircraft control](https://openairdocs.org/ntsb-findings/02063040): Personnel issues › Task performance · Pilot (probable cause); cases with it: [Piper PA-18-150, 160 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=7101828), [All aircraft, 9,295 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md) - [Performance/control parameters: directional control](https://openairdocs.org/ntsb-findings/01062020): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [Piper PA-18-150, 98 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md?model=7101828), [All aircraft, 3,958 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Landing-landing roll: Loss of control on ground](https://openairdocs.org/ntsb-events/230) (defining event); cases with it: [Piper PA-18-150, 109 cases](https://openairdocs.org/ntsb-events/230/sequence.md?model=7101828), [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md) ## Analysis After touchdown the airplane began to yaw to the left toward the left side of the runway. The pilot applied right rudder to correct for the yaw, which stopped the yaw but the airplane continued into a hard right turn. The pilot was unable to stop the right turn with left rudder input and the airplane continued around about 300 degrees before it came to a stop on the runway. During the ground loop, the left wing contacted the runway surface and sustained substantial damage. The pilot reported no preimpact mechanical malfunctions or failures with the airplane that would have precluded normal operation. ## Factual narrative After touchdown the airplane began to yaw to the left toward the left side of the runway. The pilot applied right rudder to correct for the yaw, which stopped the yaw but the airplane continued into a hard right turn. The pilot was unable to stop the right turn with left rudder input and the airplane continued around about 300 degrees before it came to a stop on the runway. During the ground loop, the left wing contacted the runway surface and sustained substantial damage. The pilot reported no preimpact mechanical malfunctions or failures with the airplane that would have precluded normal operation. ## Aircraft - Registration: [N83447](https://openairdocs.org/aircraft/N83447), registered now, S/N 18-7609138, built 1976 (OpenAirDocs) - Reported make and model: PIPER PA 18-150 (A150) - Registry model: [Piper PA-18-150](https://openairdocs.org/model/piper-pa-18-150) (registry code 7101828) (OpenAirDocs) - Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 18-7609138 - Year built: 1976 - Airframe hours: 7713 - Engines: LYCOMING O-320 SERIES reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Operator: Chandler Air Services Inc. - Registered owner: Airspeed Moore LLC - Airworthiness certificate: Standard, Normal - Last inspection: Annual, May 2, 2014, 41 hours before - Departed: CHD, Chandler, AZ - Destination: CHD, Chandler, AZ - Airport: CHD, Chandler Municipal, runway 04R, 4,870 × 75 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 31; injuries: none; private; airplane ratings: single-engine land; medical: class 1, without waivers/limitations; last flight review January 9, 2013; seat: front; restraint: 3-point; flight hours: 124 total, 14 in this make and model ## Weather - Conditions: Visual (VMC), Day - Wind: 10° at 4 knots - Visibility: 40 statute miles - Lowest ceiling: none - Temperature: 91 °F, dew point 63 °F - Altimeter: 29.92 inHg - Observed at: CHD ## 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 20140711010509A](https://openairdocs.org/incident/20140711010509A), Jul 11, 2014: Piper PA-18-150, Chandler, AZ, Substantial damage. The pilot stated that at approximately 0845 local time while performing touch and goes on runway 4 at kchd, that the 4th approach was "normal with expected… ## Docket (3 files) The files NTSB released with the investigation on September 15, 2014, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=89647. 1.4 MB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 1.2 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40416475&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Master.PDF - Release of Aircraft Wreckage, NTSB Form 6120.15 (item 2, .PDF, 185 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40416476&FileExtension=.PDF&FileName=Release%20of%20Aircraft%20Wreckage,%20NTSB%20Form%206120.15-Master.PDF - Photo 1 - Left Wing Damage (item 3, .PDF, 63 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40416477&FileExtension=.PDF&FileName=Photo%201%20-%20Left%20Wing%20Damage-Master.PDF 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.