# NTSB WPR11CA473: Cessna 152, N6308Q, Scappoose, OR, September 29, 2011 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: September 29, 2011, 12:30 local (19:30 UTC) - Place: Scappoose, OR - Coordinates: 45.770832, -122.861663 - Nearby events: https://openairdocs.org/map.md?lat=45.7708&lon=-122.8617&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing-flare/touchdown: Hard landing](https://openairdocs.org/ntsb-events/092) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report December 1, 2011 - Report: Approved by Office Director - NTSB office: Western Pacific Region - Parties: Federal Aviation Administration - NTSB case key (mKey): 81929 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=WPR11CA473 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/81929/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=81929 - Page: https://openairdocs.org/ntsb/WPR11CA473 ## Probable cause The student pilot's improper flare, which resulted in a bounced landing from which she was unable to recover. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Performance/control parameters: landing flare](https://openairdocs.org/ntsb-findings/01062041): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [Cessna 152, 46 cases](https://openairdocs.org/ntsb-findings/01062041/cases.md?model=2071835), [All aircraft, 1,285 cases](https://openairdocs.org/ntsb-findings/01062041/cases.md) - [Use of equip/info: aircraft control](https://openairdocs.org/ntsb-findings/02063040): Personnel issues › Task performance · Student/instructed pilot (probable cause); cases with it: [Cessna 152, 115 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=2071835), [All aircraft, 9,295 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Landing-flare/touchdown: Hard landing](https://openairdocs.org/ntsb-events/092) (defining event); cases with it: [Cessna 152, 48 cases](https://openairdocs.org/ntsb-events/092/sequence.md?model=2071835), [All aircraft, 2,102 cases](https://openairdocs.org/ntsb-events/092/sequence.md) ## Analysis According to the student pilot, while on final approach, the airplane was slow, and she added power while reducing the pitch. When the airplane reached the runway, it was higher than normal, so she reduced the power to idle. The airplane bounced upon touchdown. During the third bounce, the propeller impacted the runway. A postaccident examination revealed several bent longerons and deformation of the firewall. The student pilot reported no preimpact mechanical malfunctions or failures with the airplane that would have precluded normal operation. ## Factual narrative The student pilot submitted a written statement. After departing to a nearby airport for solo landing practice, she determined the appropriate landing direction to maintain consistency with the other traffic at the airport. While on final, the airplane was slow and the student added power while reducing the pitch. When the airplane reached the runway, it was higher than normal, she reduced the power to idle, and the airplane bounced three times. During the bounces, the propeller impacted the runway. Post accident examination revealed several bent longerons and deformation of the firewall. The student reported no preimpact mechanical malfunctions or failures with the airplane that would have precluded normal operation. ## Aircraft - Registration: [N6308Q](https://openairdocs.org/deregistered/N6308Q-2023-12-26), registration cancelled 2023-12-26, S/N 15285227, built 1981 (OpenAirDocs) - Reported make and model: CESSNA 152 - Registry model: [Cessna 152](https://openairdocs.org/model/cessna-152) (registry code 2071835) (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: 15285227 - Airframe hours: 9524 - Engines: LYCOMING O-235-L2C 115 horsepower reciprocating - Damage: Substantial damage - Flight: Instructional, Part 91 - Operator: Hillsboro Aviation Inc - Registered owner: Hillsboro Aviation Inc - Airworthiness certificate: Standard, Normal - Last inspection: Annual, September 9, 2011, 66 hours before - Departed: HIO, Portland, OR - Destination: SPB, Scappoose, OR - Airport: SPB, Scappoose Industrial Airpark, runway 15, 5,100 × 100 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Student pilot; age 30; injuries: none; student; medical: class 2, without waivers/limitations; seat: left; flight hours: 29 total, 29 in this make and model, 2 as pilot in command, 29 in the last 90 days, 26 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: 73 °F, dew point 43 °F - Altimeter: 29.90 inHg - Observed at: VUO, 13 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 20110929023239A](https://openairdocs.org/incident/20110929023239A), Sep 29, 2011: Cessna 152, Scappoose, OR, Substantial damage. Student pilot solo. Upon landing, aircraft bounced multiple times and landed hard causing damage to the propeller, firewall and engine mounts. ## Other investigations on N6308Q (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 WPR24LA021](https://openairdocs.org/ntsb/WPR24LA021), Oct 20, 2023: Cessna 152 (N6308Q), The Dalles, OR, substantial damage. Probable cause: The pilot’s encounter with severe turbulence at night which resulted in an extended downwind and collision with wires during the base turn. ## Docket (6 files) The files NTSB released with the investigation on October 21, 2011, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=81929. 1.9 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=40355362&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Redacted.PDF - Photo 1. Airplane (Provided by FAA) (item 2, .PDF, 252 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40355365&FileExtension=.PDF&FileName=Photo%201.%20Airplane%20(Provided%20by%20FAA)-Master.PDF - Photo 2. Aft of Firewall (Provided by FAA) (item 3, .PDF, 123 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40355372&FileExtension=.PDF&FileName=Photo%202.%20Aft%20of%20Firewall%20(Provided%20by%20FAA)-Master.PDF - Photo 3. Bent Longeron Left Side (Provided by FAA) (item 4, .PDF, 121 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40355371&FileExtension=.PDF&FileName=Photo%203.%20Bent%20Longeron%20Left%20Side%20(Provided%20by%20FAA)-Master.PDF - Photo 4. Bent Longeron Right Side (Provided by FAA) (item 5, .PDF, 156 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40355368&FileExtension=.PDF&FileName=Photo%204.%20Bent%20Longeron%20Right%20Side%20(Provided%20by%20FAA)-Master.PDF - Photo 5. Firewall Deformation (Provided by FAA) (item 6, .PDF, 99 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40355370&FileExtension=.PDF&FileName=Photo%205.%20Firewall%20Deformation%20(Provided%20by%20FAA)-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.