- Date
- June 27, 2003, 10:15 local (16:15 UTC)
- Place
- Glendo, WY
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Maneuvering
- Aircraft
- N4406SAir Tractor AT-301
- Weather
- Visual (VMC) · Day
- Status
- Completed · report November 25, 2003
- Report
- Approved by Office Director
- Parties
- Federal Aviation Administration
- FAA report
- 20030627012589A
- Case key
- 57321
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 failure to maintain clearance from the trees. Factors contributing to the accident were the low altitude, the high density altitude, and the trees.
Sequence of events
NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.
Analysis
The pilot said he was performing aerial application at low altitude. The pilot reported that the airplane failed to respond as expected during his pull-up and turn. The pilot said he chose to perform an emergency landing to avoid rising terrain. The airplane struck trees and the terrain causing substantial damage to the right wing, undercarriage, and fuselage. An examination of the airplane's systems revealed no anomalies. Approximately 200 gallons of chemical was recovered from the airplane's hopper. Density altitude at the time of the accident was 6,506 feet mean sea level.
Factual narrative
On June 27, 2003, approximately 1015 mountain daylight time, an Air Tractor AT-301, N4406S, operated by Frontier Aviation Inc., was substantially damaged when it impacted terrain while conducting aerial application approximately 10 miles east of Glendo, Wyoming. Visual meteorological conditions prevailed, and no flight plan had been filed for the local agricultural flight being conducted under Title 14 CFR Part 137. The commercial pilot reported no injuries. The flight originated at 0930.
In his written statement, the pilot said he was performing aerial application at low altitude. The pilot reported that the airplane failed to respond as expected during his pull-up and turn. The pilot said he chose to perform an emergency landing to avoid rising terrain. The airplane struck trees and the terrain. The landing gear failed and the airplane skidded sideways to a stop. An examination of the airplane showed substantial damage to the right wing, undercarriage, and fuselage. Flight control continuity was confirmed. An examination of the engine, engine controls, and other airplane systems revealed no anomalies.
Approximately 200 gallons of chemical was recovered from the airplane's hopper. Density altitude at the time of the accident was 6,506 feet mean sea level.
Aircraft
- Registration
- N4406S
- Reported as
- Air Tractor AT-301
- Category
- Airplane
- Serial number
- AT3010066
- Airframe hours
- 6,042
- Engine
- Pratt & Whitney R-1340-AN-1, 600 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Aerial application · Part 137
- Registered owner
- Frontier Aviation
- Airworthiness certificate
- Special, Restricted (Special)
- Last inspection
- Annual · August 9, 2002 · 191 hours before
- Departed
- EAN · Wheatland, WY
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
- 53
- Injuries
- None
- Certificate
- Commercial
- Airplane ratings
- Single-engine land, Multi-engine land
- Instrument ratings
- Airplane
- Medical
- Class 2, Valid Medical--w/ waivers/lim
- Last flight review
- February 18, 2003
- Seat
- Center
- Flight hours
- 2,880 total · 191 in this make and model · 2,880 as pilot in command · 130 in the last 90 days · 40 in the last 30 days · 3 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 310° at 6 knots
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 68 °F, dew point 48 °F
- Altimeter
- 30.11 inHg
- Observed at
- DGW, 35 nm away
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.