# NTSB ANC10CA043: Piper PA-12, N2507M, Tanana, AK, May 24, 2010 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: May 24, 2010, 09:45 local (17:45 UTC) - Place: Tanana, AK - Coordinates: 65.166664, -152.100006 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=65.1667&lon=-152.1000&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 October 21, 2010 - Report: Approved by Office Director - NTSB office: Alaska Regional Office - Parties: Federal Aviation Administration - NTSB case key (mKey): 76114 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC10CA043 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/76114/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=76114 - Page: https://openairdocs.org/ntsb/ANC10CA043 ## Probable cause The pilot's excessive application of the brakes during the landing roll resulting in a nose over. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Landing gear system: brake](https://openairdocs.org/ntsb-findings/01023242): Aircraft › Aircraft systems · Unnecessary use/operation (probable cause); cases with it: [Piper PA-12, 6 cases](https://openairdocs.org/ntsb-findings/01023242/cases.md?model=7101202), [All aircraft, 297 cases](https://openairdocs.org/ntsb-findings/01023242/cases.md) - [Action: incorrect action performance](https://openairdocs.org/ntsb-findings/02041015): Personnel issues › Action/decision · Pilot (probable cause); cases with it: [Piper PA-12, 11 cases](https://openairdocs.org/ntsb-findings/02041015/cases.md?model=7101202), [All aircraft, 1,386 cases](https://openairdocs.org/ntsb-findings/02041015/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-12, 40 cases](https://openairdocs.org/ntsb-events/230/sequence.md?model=7101202), [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md) - [Landing-landing roll: Nose over/nose down](https://openairdocs.org/ntsb-events/096); cases with it: [Piper PA-12, 36 cases](https://openairdocs.org/ntsb-events/096/sequence.md?model=7101202), [All aircraft, 2,287 cases](https://openairdocs.org/ntsb-events/096/sequence.md) ## Analysis The private pilot reported that she was practicing stop-and-go landings on a gravel-covered runway in her tailwheel-equipped airplane. The airplane was operated under Title 14, Code of Federal Regulations Part 91 as a personal flight. She said that after touchdown she inadvertently applied the brakes too hard, and the airplane nosed over. The pilot noted that there were no preaccident mechanical problems with the airplane. ## Factual narrative The private pilot reported she was practicing stop-and-go landings on a gravel-covered runway in her tailwheel-equipped airplane. The airplane was operated under Title 14, Code of Federal Regulations Part 91 as a personal flight. She said that after touchdown she inadvertently applied the brakes too hard, and the airplane nosed over. The pilot noted that there were no preaccident mechanical problems with the airplane. ## Aircraft - Registration: [N2507M](https://openairdocs.org/aircraft/N2507M), registered now, S/N 12-1005, built 1946 (OpenAirDocs) - Reported make and model: PIPER PA-12 - Registry model: [Piper PA-12](https://openairdocs.org/model/piper-pa-12) (registry code 7101202) (OpenAirDocs) - Registry engine: [Lycoming 0-235 series](https://openairdocs.org/engine/lycoming-0-235-series) (registry code 41505, 4 cycle) (OpenAirDocs) - Category: Airplane - Serial number: 12-1005 - Airframe hours: 2675 - Engines: LYCOMING O-235 SERIES 150 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Operator: Michelle H. Eller - Registered owner: Ralph E. Eller - Airworthiness certificate: Standard, Normal - Last inspection: Annual, April 15, 2010, 20 hours before - Departed: PATA, Tanana, AK - Destination: PATA, Tanana, AK - Flight plan: Unknown - Airport: PATA, Ralph Calhoun Memorial Airport, runway 07, 4,400 × 150 ft, gravel ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 41; injuries: none; private; airplane ratings: single-engine land; medical: class 3, without waivers/limitations; seat: front; flight hours: 452 total, 8 in this make and model, 493 as pilot in command, 18 in the last 90 days, 8 in the last 30 days, 1 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: variable at 4 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 64 °F, dew point 48 °F - Altimeter: 29.70 inHg - Observed at: PATA ## 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 20100524038039A](https://openairdocs.org/incident/20100524038039A), May 24, 2010: Piper PA-12, Tanana, AK, Substantial damage. The pilot stated she was practicing takeoffs and landings. After touchdown, on rollout she applied brake and the aircraft subsequently nosed over. The aircraft… ## Other investigations on N2507M (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 ANC14CA072](https://openairdocs.org/ntsb/ANC14CA072), Sep 1, 2014: Piper PA 12 (N2507M), Talkeetna, AK, substantial damage. Probable cause: The pilot's inadequate recovery from a bounced landing, resulting in a runway excursion and collision with trees. ## Docket (1 files) The files NTSB released with the investigation on August 6, 2010, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=76114. 580 KB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 580 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40334467&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Redacted.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.