Wednesday, September 26, 2018

Rans S-7 Courier, registered to Maxcy Fishing Inc, N6333Y: Accident occurred July 23, 2017 in Cordova, Alaska

Additional Participating Entity:
Federal Aviation Administration / Flight Standards District Office; Juneau, Alaska

Aviation Accident Factual 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/N6333Y

Location: Cordova, AK
Accident Number: GAA17CA440
Date & Time: 07/23/2017, 0450 AKD
Registration: N6333Y
Aircraft: MITCHELL DERRYLE V RANS S 7 COURIER
Aircraft Damage: Substantial
Defining Event: Loss of lift
Injuries: 1 None
Flight Conducted Under: Part 91: General Aviation - Personal 

The pilot of the float-equipped airplane reported that, following takeoff from a lake, he turned left downwind about 750 ft. above the water. He added that, once the turn was completed, the airplane encountered a strong downdraft, which "pushed [the] tail of [the airplane] down and away to [the] left" and the airplane began to descend. The pilot corrected with left rudder and was able to "straighten [the airplane] just prior to [the] right float tip contacting water." The airplane impacted the water, nosed over, and sank. The pilot egressed without further incidence.

The airplane sustained substantial damage to both wings.

The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.

The pilot reported on the NTSB Form 6120.1 that the wind was from the east/southeast at 15 to 20 knots, gusting to 25 knots. The pilot reported a takeoff to the east.

A review of recorded data from an automated weather observation station located about 7 nautical miles to the east of the accident, about the time of the accident, reported winds calm, 10 statues miles visibility, few clouds at 600 ft, scattered clouds at 1,200 ft, and an overcast ceiling at 3,200 ft, temperature 54°F, dew point 54°F, and an altimeter setting at 30.19" Hg. The computed density altitude at 750 ft. was 322 ft.

The Federal Aviation Administration's Airport Facility Directory, for an airport 2 nautical miles west of the accident site, states in part: "strong East winds, rwy subj to strong downdrafts."

Pilot Information

Certificate: Private
Age: 49, Male
Airplane Rating(s): Single-engine Land; Single-engine Sea
Seat Occupied: Front
Other Aircraft Rating(s): None
Restraint Used: 3-point
Instrument Rating(s): None
Second Pilot Present: No
Instructor Rating(s): None
Toxicology Performed: No
Medical Certification: Class 3 With Waivers/Limitations
Last FAA Medical Exam: 04/18/2016
Occupational Pilot: No
Last Flight Review or Equivalent: 04/11/2017
Flight Time:  (Estimated) 387 hours (Total, all aircraft), 100 hours (Total, this make and model), 233 hours (Pilot In Command, all aircraft), 108 hours (Last 90 days, all aircraft), 70 hours (Last 30 days, all aircraft), 7 hours (Last 24 hours, all aircraft) 

Aircraft and Owner/Operator Information

Aircraft Make: MITCHELL DERRYLE V
Registration: N6333Y
Model/Series: RANS S 7 COURIER NO SERIES
Aircraft Category: Airplane
Year of Manufacture: 1998
Amateur Built: Yes
Airworthiness Certificate: Experimental
Serial Number: 0596188
Landing Gear Type: Float
Seats: 2
Date/Type of Last Inspection: 04/04/2017, Annual
Certified Max Gross Wt.: 1320 lbs
Time Since Last Inspection:
Engines: 1 Reciprocating
Airframe Total Time: 335.4 Hours at time of accident
Engine Manufacturer: Rotax
ELT: C126 installed, activated, aided in locating accident
Engine Model/Series: 912 UL
Registered Owner: MAXCY FISHING INC
Rated Power: 105 hp
Operator: On file
Operating Certificate(s) Held: None 

Meteorological Information and Flight Plan

Conditions at Accident Site: Visual Conditions
Condition of Light: Dawn
Observation Facility, Elevation: PACV, 31 ft msl
Distance from Accident Site: 7 Nautical Miles
Observation Time: 1253 UTC
Direction from Accident Site: 119°
Lowest Cloud Condition: Few / 600 ft agl
Visibility: 10 Miles
Lowest Ceiling: Overcast / 3200 ft agl
Visibility (RVR):
Wind Speed/Gusts: Calm /
Turbulence Type Forecast/Actual: / None
Wind Direction:
Turbulence Severity Forecast/Actual: / N/A
Altimeter Setting: 30.19 inches Hg
Temperature/Dew Point: 12°C / 12°C
Precipitation and Obscuration: No Obscuration; No Precipitation
Departure Point: Cordova, AK (CKU)
Type of Flight Plan Filed: None
Destination: Cordova, AK (CKU)
Type of Clearance: Unknown
Departure Time: 0445 AKD
Type of Airspace: Class G 

Airport Information

Airport: CORDOVA MUNI (CKU)
Runway Surface Type: Water
Airport Elevation: 59 ft
Runway Surface Condition: Water--choppy
Runway Used: N/A
IFR Approach: None
Runway Length/Width:
VFR Approach/Landing: None 

Wreckage and Impact Information

Crew Injuries: 1 None
Aircraft Damage: Substantial
Passenger Injuries: N/A
Aircraft Fire: None
Ground Injuries: N/A
Aircraft Explosion: None
Total Injuries: 1 None
Latitude, Longitude:  60.538056, -145.660278 (est)

No comments: