Federal Aviation Administration / Flight Standards District Office; Anchorage, Alaska
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/N1TN
Analysis
The pilot reported that, after exiting instrument meteorological conditions during a circling approach, he was "a little above" the normal glidepath; as the airplane crossed the approach end of the runway, the airplane began to sink rapidly and drift to the left. He added power to initiate a go-around, but the airplane continued to sink and landed with the left main landing gear off the left side of the runway. As the airplane became airborne again, he attempted to retract the landing gear, "but the handle was locked in place." He noticed that the left and right main landing gear extension lights were illuminated, but the nose landing gear light was not. The pilot noticed a positive rate of climb and decided to fly to an alternate airport.
The pilot reported that, while en route to the alternate airport, a passenger reported that they smelled smoke, so he turned off electrical equipment. A pilot-rated passenger assisted with circuit breaker troubleshooting before turning on the battery again for communications. He instructed the pilot-rated passenger to visually examine the landing gear; the passenger reported that the left main landing gear was extended without damage and the right main landing gear was "bent back," with damage to the right flap with fuel leaking from the wing.
After contacting the alternate airport's tower, the pilot reported that he declared an emergency and provided a safety brief to the passengers. He added that, at the alternate airport, he performed an instrument landing system approach, and over the approach end of the runway, he reduced power, feathered the propellers, and moved both fuel levers to fuel cutoff. During landing, the right main landing gear collapsed, the right wing settled onto the runway, and the airplane began to pull to the right. The pilot added left rudder to maintain the runway centerline and the airplane came to rest on the runway.
The airplane sustained substantial damage to the right wing.
The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.
Probable Cause and Findings
The National Transportation Safety Board determines the probable cause(s) of this accident to be:
The pilot's failure to maintain an adequate approach path and runway centerline during the initial landing, which resulted in a hard landing to the left of the runway and damage to the landing gear and wing.
Findings
Aircraft
Descent/approach/glide path - Not attained/maintained (Cause)
Heading/course - Not attained/maintained (Cause)
Main landing gear - Damaged/degraded
Personnel issues
Aircraft control - Pilot (Cause)
Factual Information
History of Flight
Landing-flare/touchdown
Hard landing (Defining event)
Landing-landing roll
Runway excursion
Landing gear collapse
Location: King Salmon, AK
Accident Number: GAA18CA187
Date & Time: 03/29/2018, 1320 AKD
Registration: N31TN
Aircraft: BEECH 99
Aircraft Damage: Substantial
Defining Event: Hard landing
Injuries: 8 None
Flight Conducted Under: Part 135: Air Taxi & Commuter - Non-scheduled
The pilot reported that, after exiting instrument meteorological conditions (IMC) during a circling approach, he was "a little above" normal glidepath and as the airplane crossed the approach end of the runway, the airplane began to sink rapidly and drift to the left. He added power to initiate a go around, but the airplane continued to sink, and landed with the left main landing gear off the left side of the runway. As the airplane became airborne again, he attempted to retract the landing gear, "but the handle was locked in place". He noticed that the left and right main landing gear extension lights were illuminated, but the nose landing gear light was not. The pilot noticed a positive rate of climb and decided to fly to an alternate airport.
The pilot reported that, while en route to the alternate airport, a passenger reported that they smelled smoke, so he turned off electrical equipment. He utilized a pilot-rated passenger to assist with circuit breaker troubleshooting before turning on the battery again for communications. He instructed the pilot-rated passenger to visually examine the landing gear, who reported that the left main landing gear was extended without damage and the right main landing gear was "bent back", with damage to the right flap with fuel leaking from the wing.
After contacting the alternate airport's tower, the pilot reported that he declared an emergency and provided a safety brief to the passengers. He added that, at the alternate airport, he performed an instrument landing system (ILS) approach and over the approach end of the runway, he reduced power, feathered the propellers, and moved both fuel levers to fuel cutoff. During landing, the right main landing gear collapsed, the right wing settled onto the runway, and the airplane began to pull to the right. The pilot added left rudder to maintain the runway centerline and the airplane came to rest on the runway.
The airplane sustained substantial damage to the right wing.
The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.
Pilot Information
Certificate: Commercial
Age: 31, Male
Airplane Rating(s): Multi-engine Land; Single-engine Land; Single-engine Sea
Seat Occupied: Left
Other Aircraft Rating(s): None
Restraint Used: 4-point
Instrument Rating(s): Airplane
Second Pilot Present: No
Instructor Rating(s): None
Toxicology Performed: No
Medical Certification: Class 2 Without Waivers/Limitations
Last FAA Medical Exam: 05/24/2017
Occupational Pilot: Yes
Last Flight Review or Equivalent: 12/29/2017
Flight Time: (Estimated) 4056 hours (Total, all aircraft), 103 hours (Total, this make and model), 3918 hours (Pilot In Command, all aircraft), 230 hours (Last 90 days, all aircraft), 69 hours (Last 30 days, all aircraft), 8 hours (Last 24 hours, all aircraft)
Aircraft and Owner/Operator Information
Aircraft Manufacturer: BEECH
Registration: N31TN
Model/Series: 99 UNDESIGNATED
Aircraft Category: Airplane
Year of Manufacture: 1969
Amateur Built: No
Airworthiness Certificate: Normal
Serial Number: U49
Landing Gear Type: Retractable - Tricycle
Seats: 10
Date/Type of Last Inspection: 03/21/2018, Continuous Airworthiness
Certified Max Gross Wt.: 10400 lbs
Time Since Last Inspection:
Engines: 2 Turbo Prop
Airframe Total Time: 39673.3 Hours at time of accident
Engine Manufacturer: P&W
ELT: C126 installed, not activated
Engine Model/Series: PT6A-20
Registered Owner: LAKE CLARK AIR INC
Rated Power: 550 hp
Operator: LAKE CLARK AIR INC
Operating Certificate(s) Held: On-demand Air Taxi (135)
Operator Does Business As:
Operator Designator Code: HXXC
Meteorological Information and Flight Plan
Conditions at Accident Site: Instrument Conditions
Condition of Light: Day
Observation Facility, Elevation: PAII, 92 ft msl
Observation Time: 2130 UTC
Distance from Accident Site: 38 Nautical Miles
Direction from Accident Site: 218°
Lowest Cloud Condition:
Temperature/Dew Point: 0°C / -1°C
Lowest Ceiling: Overcast / 200 ft agl
Visibility:
Wind Speed/Gusts, Direction: 6 knots, 270°
Visibility (RVR):
Altimeter Setting: 30.52 inches Hg
Visibility (RVV):
Precipitation and Obscuration: Moderate - Mist
Departure Point: DILLINGHAM, AK (DLG)
Type of Flight Plan Filed: IFR
Destination: PILOT POINT, AK (PNP)
Type of Clearance: IFR
Departure Time: 1200 AKD
Type of Airspace: Class D
Airport Information
Airport: KING SALMON (AKN)
Runway Surface Type: Asphalt
Airport Elevation: 73 ft
Runway Surface Condition: Snow; Wet
Runway Used: 12
IFR Approach: ILS
Runway Length/Width: 8901 ft / 150 ft
VFR Approach/Landing: Full Stop
Wreckage and Impact Information
Crew Injuries: 1 None
Aircraft Damage: Substantial
Passenger Injuries: 7 None
Aircraft Fire: None
Ground Injuries: N/A
Aircraft Explosion: None
Total Injuries: 8 None
Latitude, Longitude: 58.679722, -156.656111 (est)
Lake Clark Air employees said the plane had been en route from Dillingham to Pilot Point at the time of the incident.
According to National Transportation Safety Board investigator Mike Hodges the Beechcraft 99 had been attempting to make a routine landing in Pilot Point at the time. One pilot and seven passengers were on board.
“During the instrument approach, the plane impacted terrain,” Hodges said. “After the airplane impacted terrain the pilot made a go-around and initiated landing at (the) King Salmon airport.”
Alaska State Troopers said in an online dispatch that they were told the plane was inbound to King Salmon just before 1 p.m. Thursday.
After touching down on the main runway, none of the occupants were injured but “damage to the Beechcraft was sustained on the right wing and the landing gear.”
“The main runway is currently closed for aircraft removal,” troopers wrote.
Another Lake Clark Air plane is en route to take the passengers to their original destinations, according to airline staff.
Original article can be found here ➤ http://www.ktva.com
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