# NTSB WPR13IA026: Cessna P210N, N43CE, Oakland, CA, October 27, 2012 - Type: NTSB incident investigation - Classification: Incident · No injuries · Incident investigation · Final report - Date: October 27, 2012, 12:35 local (19:35 UTC) - Place: Oakland, CA - Coordinates: 37.719444, -122.218887 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=37.7194&lon=-122.2189&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing-landing roll: Landing gear collapse](https://openairdocs.org/ntsb-events/094) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report November 6, 2013 - Report: Approved by Office Director - NTSB office: Western Pacific Region - Parties: Federal Aviation Administration - NTSB case key (mKey): 85449 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=WPR13IA026 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/85449/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=85449 - Page: https://openairdocs.org/ntsb/WPR13IA026 ## Probable cause The pilot’s failure to follow proper procedures to confirm that the main landing gear was down and locked before landing. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Action: incomplete action](https://openairdocs.org/ntsb-findings/02041040): Personnel issues › Action/decision · Pilot (probable cause) - [Use of equip/info: use of policy/procedure](https://openairdocs.org/ntsb-findings/02063032): Personnel issues › Task performance · Pilot (probable cause) ## Analysis During the airplane’s approach to land, the pilot extended the landing gear. However, the pilot did not confirm that the landing gear position indicator light was illuminated, and he did not visually check to ensure that the landing gear was down and locked. The main landing gear collapsed shortly after the airplane touched down. Postincident examination of the airplane revealed that the landing gear pump circuit breaker had tripped. When the circuit breaker was reset, the landing gear was successfully cycled. According to the airplane flight manual, pilots can ensure that the landing gear is fully extended by checking that the green landing gear position indicator light is illuminated and visually checking the landing gear position. ## Factual narrative On October 27, 2012, about 1235 Pacific daylight time, a Cessna P210N, N43CE, sustained minor damage during the landing roll and subsequent landing gear collapse at the Oakland Metropolitan International Airport (OAK) Oakland, California. The airplane was registered to and operated by the pilot under the provisions of Title 14 Code of Federal Regulations Part 91. The private pilot, sole occupant of the airplane, was not injured. Visual meteorological conditions prevailed and no flight plan was filed for the personal flight which originated from Salt Lake City International Airport (SLC) Salt Lake City, Utah, at about 1100 mountain daylight time, with a destination of OAK. The pilot reported extending the landing gear to the down position during the approach about five miles from the airport. As the landing gear extended, he heard the sound of the gear motor and felt the pitch change of the airplane. The pilot did not check to see if the green landing gear position indicator light was illuminated and did not visually confirm if the landing gear was down. During the landing roll, the main landing gear collapsed about 600 feet from the touchdown and the nose gear remained down and locked. Examination of the airplane by the pilot revealed that minor damage was sustained to accessories attached to the underside of the fuselage. Subsequently, he observed that the gear pump circuit breaker was out. The circuit breaker was reset and a gear swing was accomplished, which resulted in normal operation. A review of the normal procedures section in the Pilot Operating Handbook revealed that the Before Landing checklist, step 4, requires checking that the green landing gear position indicator light is illuminated and visually observing that the main landing gear is down and locked. In the event of landing without positive indication of the gear locking, the emergency procedures call for checking the landing gear and gear pump circuit breakers are in. ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Landing-landing roll: Landing gear collapse](https://openairdocs.org/ntsb-events/094) (defining event) ## Aircraft - Registration: N43CE (not matched to a registry record) - Reported make and model: CESSNA P210N - Category: Airplane - Serial number: P21000398 - Engines: CONT MOTOR TSIO-520 SER 300 horsepower reciprocating - Damage: Minor damage - Flight: Personal, Part 91 - Operator: Bruce Lymburn - Registered owner: Zions Credit Corp - Airworthiness certificate: Standard, Normal - Last inspection: Annual, March 1, 2012 - Departed: SLC, Salt Lake City, UT - Destination: OAK, Oakland, CA - Airport: OAK, Metropolitan Oakland Int'l, runway 27R, 5,458 × 150 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 59; injuries: none; private; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 3, with waivers/limitations; last flight review May 1, 2012; seat: left; flight hours: 1,823 total, 1,070 in this make and model, 1,823 as pilot in command, 41 in the last 90 days, 11 in the last 30 days, 3 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 290° at 8 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 70 °F, dew point 57 °F - Altimeter: 30.04 inHg - Observed at: OAK ## FAA reports on this event (1) The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs). - [Incident 20121027029259I](https://openairdocs.org/incident/20121027029259I), Oct 27, 2012: Cessna P210N, Oakland, CA, Minor damage. NTSB incident number: WPR13IA026 Day VFR - visibility unlimited - 600FT into landing roll out main gear collapsed, nose gear remained down and locked. Aircraft… ## Docket (5 files) The files NTSB released with the investigation on August 8, 2013, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=85449. 3.5 MB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 2.9 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40397207&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Redacted.PDF - Record of Email (item 2, .PDF, 56 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40397218&FileExtension=.PDF&FileName=Record%20of%20Email-Master.PDF - Record of Email (item 3, .PDF, 64 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40397217&FileExtension=.PDF&FileName=Record%20of%20Email-Master.PDF - Airplane Normal Procedures (item 4, .PDF, 267 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40397211&FileExtension=.PDF&FileName=Airplane%20Normal%20Procedures-Master.PDF - Airplane Emergency Procedures (item 5, .PDF, 199 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40397219&FileExtension=.PDF&FileName=Airplane%20Emergency%20Procedures-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.