- Date
- March 24, 2012, 13:30 local (19:30 UTC)
- Place
- Calhan, CO
- Injuries
- 1 serious
- Damage
- Substantial damage
- Phase of flight
- Landing
- Aircraft
- N605RVHall Jeffrey Hall RV-4
- Defining event
- Landing-landing roll: Loss of control on ground
- Weather
- Visual (VMC) · Day
- Status
- Completed · report May 21, 2012
- Report
- Approved by Office Director
- NTSB office
- Central Region
- Parties
- FAA FSDO
- FAA report
- 20120324005099A
- Case key
- 83225
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Probable cause
The pilot's loss of airplane control while landing with a gusting tailwind condition.
Findings · 3
NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.
Sequence of events
The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.
Analysis
The pilot reported that he departed a private airfield earlier in the day, and, at the time he departed, the wind was from the north about 5 knots. About 3.5 hours later, he returned to the airfield, which has a north-south oriented runway. The pilot stated that, due to terrain obstructions, landing to the north was “unadvisable.” The pilot added that the wind socks at the airfield indicated a slightly northern wind, light and variable, with no gusts. The pilot stated that he flew three passes to assess the wind, then made his approach and landed to the south. He added that, throughout the landing roll, the airplane was not affected by the wind; however, when the airplane was traveling about 5 knots ground speed, a crosswind gust blew the airplane off track, lifted the tail, and the airplane flipped over onto its back. The airplane sustained substantial damage to its vertical stabilizer and canopy. The pilot reported that there were no airplane malfunctions that contributed to the cause of the accident. About an hour before the accident, the automated weather reporting station located about 14 miles west of the airfield reported wind from 040 degrees at 15 knots gusting to 19 knots. About 5 minutes after the accident, the automated weather reporting station located about 19 miles southwest of the airfield reported wind from 050 degrees at 11 knots gusting to 17 knots.
Factual narrative
The airline transport pilot reported that he departed a private airfield earlier in the day and at the time he departed, the wind was from the north about 5 knots. About three and half hours later, he returned to the airfield, which has a north-south oriented runway. The pilot stated that due to terrain obstructions, landing to the north was “unadvisable”. The pilot added that the wind socks at the airfield indicated a slightly northern wind, light and variable, with no gusts. The pilot then stated that he flew three passes to assess the wind, then made his approach and landed to the south. He added that throughout the landing roll the airplane was not affected by the wind; however, when the airplane was at about 5 knots ground speed, a crosswind gust blew the airplane off track, lifted the tail, and the airplane flipped over onto its back. The airplane received substantial damage to its vertical stabilizer and canopy. The pilot also added that there were no airplane malfunctions that contributed to the cause of the accident. At 1226 automated weather reporting station located about 14 miles west of the accident airfield reported wind from 040 degrees at 15 knots gusting to 19. At 1335 the automated weather reporting station located about 19 miles southwest reported the wind from 050 degrees at 11 knots gusting to 17 knots.
Aircraft
- Registration
- N605RV
- Reported as
- Hall Jeffrey Hall RV-4
- Category
- Airplane, amateur-built
- Serial number
- 2179
- Engine
- Lycoming O-360 SERIES, 145 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Operator
- Staggerwing Aviation Inc
- Registered owner
- Staggerwing Aviation Inc
- Airworthiness certificate
- Special, Experimental (Special)
- Last inspection
- Condition · March 17, 2011
- Departed
- KFTG · Watkins, CO
- Destination
- CD23 · Calhan, CO
- Airport
- CD23 · Aerobear Field, runway 18, 2,200 × 60 ft, grass/turf
Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 68
- Certificates
- Flight instructor, Flight engineer, Airline transport
- Airplane ratings
- Single-engine land, Multi-engine land
- Instrument ratings
- Airplane
- Medical
- Class 2, With waivers/limitations
- Last flight review
- March 12, 2011
- Flight hours
- 33,000 total · 27 in this make and model
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 40° at 15 knots, gusting 19
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 63 °F, dew point 19 °F
- Altimeter
- 30.15 inHg
- Observed at
- KMNH, 14 nm away
Docket · 2
The files NTSB released with the investigation on April 30, 2012, on NTSB’s docket system: statements, records, photos and specialists’ reports. 756 KB in all.
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.