# NTSB GAA19CA404: Piper PA28, N6733F, Saipan, July 10, 2019 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: July 10, 2019, 10:15 local (19:15 UTC) - Place: Saipan - Coordinates: 15.123888, 145.731384 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=15.1239&lon=145.7314&mi=10 - Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping) - Defining event: [Taxi-from runway: Loss of control on ground](https://openairdocs.org/ntsb-events/230) - Highest injury: No injuries - Injuries: 3 uninjured - Status: Completed, report April 13, 2020 - Report: Approved by Office Director - NTSB office: General Aviation Accidents - Parties: FAA - NTSB case key (mKey): 99820 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=GAA19CA404 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/99820/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=99820 - Page: https://openairdocs.org/ntsb/GAA19CA404 ## Probable cause The pilot's failure to maintain directional control while exiting the runway, which resulted in a runway excursion and collision with taxiway lighting and runway signage. ## 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-28-140, 103 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=7102802), [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-28-140, 40 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md?model=7102802), [All aircraft, 3,958 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md) - [Object/animal/substance: sign/marker](https://openairdocs.org/ntsb-findings/03022015): Environmental issues › Physical environment · Effect on operation (probable cause); cases with it: [Piper PA-28-140, 8 cases](https://openairdocs.org/ntsb-findings/03022015/cases.md?model=7102802), [All aircraft, 214 cases](https://openairdocs.org/ntsb-findings/03022015/cases.md) - [Object/animal/substance: runway/taxi/approach light](https://openairdocs.org/ntsb-findings/03022012): Environmental issues › Physical environment · Effect on operation (probable cause); cases with it: [Piper PA-28-140, 2 cases](https://openairdocs.org/ntsb-findings/03022012/cases.md?model=7102802), [All aircraft, 106 cases](https://openairdocs.org/ntsb-findings/03022012/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Taxi-from runway: Loss of control on ground](https://openairdocs.org/ntsb-events/230) (defining event); cases with it: [Piper PA-28-140, 38 cases](https://openairdocs.org/ntsb-events/230/sequence.md?model=7102802), [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md) - [Taxi-from runway: Collision with terr/obj (non-CFIT) ](https://openairdocs.org/ntsb-events/470); cases with it: [Piper PA-28-140, 137 cases](https://openairdocs.org/ntsb-events/470/sequence.md?model=7102802), [All aircraft, 10,189 cases](https://openairdocs.org/ntsb-events/470/sequence.md) ## Analysis The pilot reported that, during the landing roll, he applied "aerodynamic braking to slow the aircraft." The airplane departed the runway when he attempted to exit it onto a taxiway. The left main landing gear wheel fairing struck a taxiway light, and the leading edge of the right wing struck runway signage. The airplane sustained substantial damage to the right wing. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. ## Factual narrative The pilot reported that during the landing roll, he applied, "aerodynamic braking to slow the aircraft." The airplane departed the runway when he attempted to exit the runway at Bravo taxiway. The left main landing gear wheel fairing struck a taxiway light, and the leading edge of the right wing struck runway signage. The airplane sustained substantial damage to the right wing. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. ## Aircraft - Registration: [N6733F](https://openairdocs.org/aircraft/N6733F), registered now, S/N 28-7725077 (OpenAirDocs) - Reported make and model: Piper PA28 (140) - Registry model: [Piper PA-28-140](https://openairdocs.org/model/piper-pa-28-140) (registry code 7102802) (OpenAirDocs) - Category: Airplane - Serial number: 28-7725077 - Airframe hours: 8393.66 - Engines: Lycoming O-320-E3D 150 horsepower reciprocating - Damage: Substantial damage - Flight: Aerial observation, Part 91 - Operator: Marianas Air Transfer Inc, doing business as Star Marianas Air, Inc. - Registered owner: Marianas Air Transfer Inc - Airworthiness certificate: Standard, Normal - Last inspection: AAIP, June 30, 2019 - Departed: PGSN, SAIPAN - Destination: PGSN, Saipan - Airport: PGSN, Saipan International Airport, runway 07, 8,700 × 200 ft, concrete - Equipment: Stall warning system ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 22; injuries: none; commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, without waivers/limitations; last flight review May 8, 2019; seat: left; flight hours: 430 total, 65 in this make and model, 315 as pilot in command, 120 in the last 90 days, 65 in the last 30 days, 6 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 10° at 10 knots - Visibility: 10 statute miles - Temperature: 90 °F, dew point 75 °F - Altimeter: 29.90 inHg - Observed at: PGSN, 2 nm away ## 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 20190710009789A](https://openairdocs.org/incident/20190710009789A), Jul 10, 2019: Piper PA-28-140, Fadang, CM, Substantial damage. On July 10, 2019 at approximately 1015 local time, the PA-28-140 was involved in an incident involving the failure to maneuver the aircraft upon landing… ## Docket (2 files) The files NTSB released with the investigation on December 5, 2019, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=99820. 3.7 MB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 3.6 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40478600&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Master.PDF - Photo (item 2, .PDF, 1 photo, 98 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40478601&FileExtension=.PDF&FileName=Photo-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.