Tuesday, October 17, 2017

Cessna 172RG Cutlass, N5159U, registered to and operated by Crest Airpark Inc: Accident occurred October 15, 2017 at Auburn Municipal Airport (S50), King County, Washington

Additional Participating Entity:
Federal Aviation Administration / Flight Standards District Office; Renton, Washington

Aviation Accident Final Report - National Transportation Safety Board: https://app.ntsb.gov/pdf


Investigation Docket  - National Transportation Safety Board: https://dms.ntsb.gov/pubdms


http://registry.faa.gov/N5159U


Analysis 

The flight instructor reported that the purpose of the flight was to conduct commercial maneuvers in the local area. After completing maneuvers in the practice area, the pilot flew the airplane to the airport to conduct takeoffs and landings.

The student pilot reported that he did his landing checklist about midfield on the downwind. After he put the landing gear handle down, he noted that he heard the landing gear hydraulic motor actuating. He added that he glanced at the gear down indictor light and believed that it was green. During the touchdown, the right main landing gear collapsed, and the airplane came to a stop on the runway.

After exiting the airplane, the flight instructor and student pilot noticed that the landing gear handle was down, the green gear down light was not illuminated, and the circuit breaker for the gear pump was open.

The airplane sustained substantial damage to the empennage.

During a postaccident examination, the airplane was lifted by jacks, and the landing gear were swung five times. The malfunction could not be reproduced, and no anomalies were noted. 

Probable Cause and Findings

The National Transportation Safety Board determines the probable cause(s) of this accident to be:
The failure of the right main landing gear for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation. 

Findings

Not determined
Not determined - Unknown/Not determined (Cause)

Factual Information

History of Flight

Landing
Landing gear collapse

Location: Auburn, WA
Accident Number: GAA18CA013
Date & Time: 10/15/2017, 1435 PDT
Registration: N5159U
Aircraft: CESSNA 172RG
Aircraft Damage: Substantial
Defining Event: Landing gear not configured
Injuries: 2 None
Flight Conducted Under: Part 91: General Aviation - Instructional 

The flight instructor reported that the purpose of the flight was to conduct commercial maneuvers in the local area. After completing maneuvers in the practice area, the airplane went to the airport to conduct takeoff and landings.

The student pilot reported that during the third landing, he did his landing checklist about midfield on the downwind. After he put the landing gear handle down, he noted that he heard the landing gear hydraulic motor actuating. He added that he glanced at the gear down indictor light and believed that it was green.

During the touchdown the right main landing gear collapsed, and the airplane came to a stop on the runway.

After exiting the airplane, the flight instructor and student pilot noticed that the landing gear handle was down, the green gear down light was not illuminated, and the circuit breaker for the gear pump was open.

The airplane sustained substantial damage to the empennage.

During a postaccident examination, the airplane was lifted up by jacks and the landing gear was swung 5 times. The malfunction could not be reproduced, and no anomalies were noted.

Student Pilot Information

Certificate: Private
Age: 20, Male
Airplane Rating(s): Single-engine Land
Seat Occupied: Left
Other Aircraft Rating(s): None
Restraint Used: 3-point
Instrument Rating(s): Airplane
Second Pilot Present: Yes
Instructor Rating(s): None
Toxicology Performed: No
Medical Certification:  Class 1 Without Waivers/Limitations
Last FAA Medical Exam: 03/08/2017
Occupational Pilot: No
Last Flight Review or Equivalent: 02/22/2017
Flight Time:  (Estimated) 197 hours (Total, all aircraft), 14 hours (Total, this make and model), 137 hours (Pilot In Command, all aircraft), 65 hours (Last 90 days, all aircraft), 24 hours (Last 30 days, all aircraft)

Flight Instructor Information

Certificate: Airline Transport
Age: 67, Male
Airplane Rating(s): Multi-engine Land; Single-engine Land; Single-engine Sea
Seat Occupied: Right
Other Aircraft Rating(s): Balloon; Glider; Helicopter
Restraint Used: 3-point
Instrument Rating(s): Airplane
Second Pilot Present: Yes
Instructor Rating(s): Airplane Multi-engine; Airplane Single-engine; Instrument Airplane
Toxicology Performed: No
Medical Certification: Class 1 Waiver Time Limited Special
Last FAA Medical Exam: 05/17/2017
Occupational Pilot: Yes
Last Flight Review or Equivalent: 05/03/2017
Flight Time:   (Estimated) 9000 hours (Total, all aircraft), 150 hours (Total, this make and model), 8850 hours (Pilot In Command, all aircraft), 167 hours (Last 90 days, all aircraft), 49 hours (Last 30 days, all aircraft), 4 hours (Last 24 hours, all aircraft) 

Aircraft and Owner/Operator Information

Aircraft Manufacturer: CESSNA
Registration: N5159U
Model/Series: 172RG NO SERIES
Aircraft Category: Airplane
Year of Manufacture: 1980
Amateur Built: No
Airworthiness Certificate: Normal
Serial Number: 172RG0265
Landing Gear Type: Retractable - Tricycle
Seats: 4
Date/Type of Last Inspection: 09/30/2017, 100 Hour
Certified Max Gross Wt.: 2650 lbs
Time Since Last Inspection:
Engines: 1 Reciprocating
Airframe Total Time: 5479.9 Hours at time of accident
Engine Manufacturer: LYCOMING
ELT: Installed, not activated
Engine Model/Series: O&VO-360 SER
Registered Owner: CREST AIRPARK INC.
Rated Power: 180 hp
Operator: CREST AIRPARK INC.
Operating Certificate(s) Held: Pilot School (141) 

Meteorological Information and Flight Plan

Conditions at Accident Site: Visual Conditions
Condition of Light: Day
Observation Facility, Elevation: KSEA, 434 ft msl
Observation Time: 2053 UTC
Distance from Accident Site: 8 Nautical Miles
Direction from Accident Site: 333°
Lowest Cloud Condition: Scattered / 22000 ft agl
Temperature/Dew Point: 17°C / 7°C
Lowest Ceiling:  
Visibility:  10 Miles
Wind Speed/Gusts, Direction: 5 knots, 290°
Visibility (RVR):
Altimeter Setting: 30.26 inches Hg
Visibility (RVV):
Precipitation and Obscuration: No Obscuration; No Precipitation
Departure Point: KENT, WA (S36)
Type of Flight Plan Filed: None
Destination: Auburn, WA (S50)
Type of Clearance: None
Departure Time: 1340 PDT
Type of Airspace: Class G 

Airport Information

Airport: AUBURN MUNI (S50)
Runway Surface Type: Asphalt
Airport Elevation: 63 ft
Runway Surface Condition: Dry
Runway Used: 34
IFR Approach: None
Runway Length/Width: 3400 ft / 75 ft
VFR Approach/Landing: Simulated Forced Landing; Touch and Go; Traffic Pattern

Wreckage and Impact Information

Crew Injuries: 2 None
Aircraft Damage: Substantial
Passenger Injuries: N/A
Aircraft Fire: None
Ground Injuries: N/A
Aircraft Explosion: None
Total Injuries: 2 None
Latitude, Longitude: 47.328611, -122.226667 (est)

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