# NTSB LAX93LA340: Cessna 177RG, N33195, Cameron Park, CA, August 28, 1993 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: August 28, 1993, 16:50 local (23:50 UTC) - Place: Cameron Park, CA - Coordinates: 38.610931, -120.969436 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=38.6109&lon=-120.9694&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed, report September 26, 1994 - Report: Approved by Office Director - NTSB case key (mKey): 28463 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX93LA340 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/28463/pdf - Page: https://openairdocs.org/ntsb/LAX93LA340 ## Probable cause THE PILOT'S FAILURE TO ASSURE THAT THE LANDING GEAR WAS DOWN AND LOCKED. FACTORS RELATING TO THIS ACCIDENT WERE THE ALTERNATOR FAILURE DUE TO A BROKEN WIRE AND THE LOW BATTERY OUTPUT. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Gear not extended, landing - flare/touchdown - electrical system,alternator - inoperative (contributing factor) - electrical system,battery - output low (contributing factor) - gear down and locked - not performed, pilot in command (cause) ## Analysis WHILE IN THE TRAFFIC PATTERN, THE PILOT LOWERED THE LANDING GEAR. THE PILOT REPORTED THAT HE SAW THE LANDING GEARS DOWN GREEN LIGHT ILLUMINATE AND LANDED THE AIRPLANE. DURING THE LANDING THE NOSE GEAR WAS THE ONLY GEAR IN THE DOWN AND LOCKED POSITION. THE EXAMINATION DISCLOSED THAT THE BATTERY POWER WAS MOSTLY DEPLETED DUE TO A BROKEN ALTERNATOR WIRE. THE LANDING GEAR SYSTEM WAS TESTED AND IT OPERATED NORMALLY. THE CESSNA MAINTENANCE MANUAL SHOWS THAT THE LANDING GEAR LIGHT IS CONNECTED IN SERIES WHEREAS THE LIGHT WILL NOT ILLUMINATE UNLESS ALL THREE LANDING GEARS ARE DOWN AND LOCKED. ## Factual narrative On August 28, 1993, at 1650 hours Pacific daylight time, the landing gear of a Cessna 177RG, N33195, collapsed while landing on runway 13 at Cameron Airpark, Cameron Park, California. The pilot was completing a visual flight rules personal flight. The airplane, registered to and operated by the pilot, received substantial damage. Neither the certificated private pilot nor his passenger were injured. Visual meteorological conditions prevailed. The flight originated at Lake Tahoe Airport, South Lake Tahoe, California, at 1600 hours. The pilot reported in a telephone interview that during the landing roll-out the main landing gear collapsed and folded aft; the nose wheel remained down. The airplane slid off the left side of the runway and the left horizontal stabilizer struck about a 12-inch high taxiway light post. Mr. Charles Nicolos, Main Air, Cameron Airpark, stated in a telephone interview on January 20, 1994, that he repaired the airplane. During the repairs, he found that the battery was dead due to a broken alternator wire. The landing gear system operated normally, but when the pilot selected the landing gear down, the nose gear went down and was locked in the down position by air loads. The remaining battery power was insufficient to fully extend and lock the main landing gears. ## Aircraft - Registration: [N33195](https://openairdocs.org/aircraft/N33195), registered now, S/N 177RG0918, built 1976 (OpenAirDocs) - Reported make and model: CESSNA 177RG - Registry model: [Cessna 177RG](https://openairdocs.org/model/cessna-177rg) (registry code 2073709) (OpenAirDocs) - Registry engine: [Lycoming IO-360-A1B6D](https://openairdocs.org/engine/lycoming-io-360-a1b6d) (registry code 41593, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 177RG0918 - Airframe hours: 1333 - Engines: LYCOMING IO-360-A1B6D 200 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Registered owner: Weishar, Robert W - Airworthiness certificate: Standard, Normal - Last inspection: Annual, September 5, 1992, 63 hours before - Departed: TVL, S. LAKE TAHOE, CA - Airport: O61, Cameron Airpark, runway 13, 4,060 × 50 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 67; private; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; seat: left; flight hours: 966 total, 682 in this make and model, 923 as pilot in command, 22 in the last 90 days, 6 in the last 30 days, 4 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: calm - Visibility: 50 statute miles - Lowest ceiling: none - Temperature: 84 °F ## 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 19930828037499A](https://openairdocs.org/incident/19930828037499A), Aug 28, 1993: Cessna 177RG, Cameron Park, CA, Substantial damage. Landed with main gear in trail. Battery dead due broken alternator wire. Pilot failed to note or check gear down. 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.