Wednesday, July 3, 2019

Loss of Lift: Grumman American AA-5A, N387G; accident occurred July 01, 2019 at Cheyenne Regional Airport (KCYS), Laramie County, Wyoming

Additional Participating Entity:
Aviation Administration / Flight Standards District Office; Denver, Colorado

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

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

https://registry.faa.gov/N387G

Location: Cheyenne, WY
Accident Number: GAA19CA384
Date & Time: 07/01/2019, 2100 MDT
Registration: N387G
Aircraft: American Aviation AA5
Aircraft Damage: Substantial
Defining Event: Loss of lift
Injuries: 2 None
Flight Conducted Under: Part 91: General Aviation - Personal 

The pilot reported that, while en route, she diverted due to deteriorating weather at the intended destination. She added that, during landing, a second pilot in the right seat reported a right quartering crosswind. During the "transition to the roundout," she observed 65 knots on the airspeed gauge, she heard the stall warning horn, and the airplane developed a high sink rate. She attempted to go around, but the airplane landed hard and veered to the left. The airplane became airborne again, the pilot attempted to regain runway centerline, but the fuselage and wing struck objects on the left side of the runway. She decided a go around was not possible, so she reduced power and landed the airplane in the grass to the left of 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.

The automated weather observation station, located about 3 miles west of the airport, reported that, about 2 minutes before the accident, the wind was from 020° at 8 knots, 10 statute miles visibility, broken clouds at 7,500 ft, temperature 15°C, dew point 12°C, altimeter 30.24" Hg. The same automated station reported that, about 32 minutes after the accident, the wind was from 020° at 9 knots, 10 statute miles visibility, broken clouds at 2,100 ft, temperature 14°C, dew point 11°C, altimeter 30.25" Hg, remarks stated lightning distant northeast-east with clouds broken variable few. The pilot landed the airplane on runway 27. 

Pilot Information

Certificate: Commercial; Military; Private
Age: 43, Female
Airplane Rating(s): Single-engine Land
Seat Occupied: Left
Other Aircraft Rating(s): Helicopter
Restraint Used:
Instrument Rating(s): Airplane; Helicopter
Second Pilot Present: Yes
Instructor Rating(s): None
Toxicology Performed: No
Medical Certification: Class 2 Without Waivers/Limitations
Last FAA Medical Exam: 02/25/2019
Occupational Pilot: No
Last Flight Review or Equivalent: 05/03/2019
Flight Time:  (Estimated) 965.9 hours (Total, all aircraft), 56.9 hours (Total, this make and model), 486.5 hours (Pilot In Command, all aircraft), 59.5 hours (Last 90 days, all aircraft), 50.2 hours (Last 30 days, all aircraft), 1.6 hours (Last 24 hours, all aircraft)

Pilot Information

Certificate: Commercial; Military; Private
Age: 38, Male
Airplane Rating(s): Multi-engine Land; Single-engine Land
Seat Occupied: Right
Other Aircraft Rating(s): Helicopter
Restraint Used:
Instrument Rating(s): Airplane; Helicopter
Second Pilot Present: Yes
Instructor Rating(s): None
Toxicology Performed: No
Medical Certification: Class 1 Without Waivers/Limitations
Last FAA Medical Exam: 02/18/2019
Occupational Pilot: Yes
Last Flight Review or Equivalent:
Flight Time:  (Estimated) 1637 hours (Total, all aircraft), 130 hours (Total, this make and model), 1010 hours (Pilot In Command, all aircraft), 195 hours (Last 90 days, all aircraft), 121 hours (Last 30 days, all aircraft), 10 hours (Last 24 hours, all aircraft)

Aircraft and Owner/Operator Information

Aircraft Make: American Aviation
Registration: N387G
Model/Series: AA5 A
Aircraft Category: Airplane
Year of Manufacture: 1977
Amateur Built: No
Airworthiness Certificate: Normal; Utility
Serial Number: AA5A0387
Landing Gear Type: Tricycle
Seats: 4
Date/Type of Last Inspection: 04/09/2018, 100 Hour
Certified Max Gross Wt.: 2200 lbs
Time Since Last Inspection:
Engines: 1 Reciprocating
Airframe Total Time: 4245.6 Hours as of last inspection
Engine Manufacturer: Lycoming
ELT: C91 installed, not activated
Engine Model/Series: O-320-E2G
Registered Owner: Thunderfighter Llc
Rated Power: 160 hp
Operator: Western Air Flight Academy
Operating Certificate(s) Held: None

Meteorological Information and Flight Plan

Conditions at Accident Site: Visual Conditions
Condition of Light: Dusk
Observation Facility, Elevation: KFEW, 6160 ft msl
Distance from Accident Site: 3 Nautical Miles
Observation Time: 0358 UTC
Direction from Accident Site: 248°
Lowest Cloud Condition:
Visibility:  10 Miles
Lowest Ceiling: Broken / 7500 ft agl
Visibility (RVR):
Wind Speed/Gusts: 8 knots /
Turbulence Type Forecast/Actual: None / None
Wind Direction: 20°
Turbulence Severity Forecast/Actual: N/A / N/A
Altimeter Setting: 30.24 inches Hg
Temperature/Dew Point: 15°C / 12°C
Precipitation and Obscuration: No Obscuration; No Precipitation
Departure Point: Casper, WY (CPR)
Type of Flight Plan Filed: None
Destination: Denver, CO (BJC)
Type of Clearance: VFR
Departure Time: 1830 MDT
Type of Airspace: Class D

Airport Information

Airport: CHEYENNE RGNL/JERRY OLSON FIEL (CYS)
Runway Surface Type: Concrete
Airport Elevation: 6159 ft
Runway Surface Condition: Wet
Runway Used: 27 
IFR Approach: None
Runway Length/Width: 9270 ft / 150 ft
VFR Approach/Landing: Full Stop

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: 41.155000, -104.795556 (est)

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