- Date
- April 13, 1997, 11:54 local (18:54 UTC)
- Place
- Congress, AZ
- Injuries
- 2 fatal
- Damage
- Destroyed
- Phase of flight
- Maneuvering
- Aircraft
- N28BDDevendorf Glassair GL25
- Weather
- Visual (VMC) · Day
- Status
- Completed · report February 28, 2000
- Report
- Approved by Office Director
- FAA report
- 19970413005749A
- Case key
- 29771
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
failure of the pilot to recover from an inverted stall/spin prior to impact with the ground. The reason for the loss of control was not determined.
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
Two witnesses, one of whom is a pilot, both stated that they observed the aircraft when it was approximately 1,000 feet agl until impact, and that it appeared to be in an inverted spin. After observing the crash site, an FAA airworthiness inspector stated that the aircraft appeared to have contacted the ground in an inverted attitude with little or no forward velocity. The postcrash examination did not disclose any preexisting flight control, fuel, or engine systems malfunctions or mismanagement. Also, the toxicological results did not disclose any impairment of the pilot.
Factual narrative
On April 13, 1997, at 1154 hours mountain standard time, a Devendorf Glassair GL25, N28BD, was destroyed when it impacted the ground in the vicinity of Congress, Arizona. The private pilot and one passenger sustained fatal injures. The flight originated at the Eagle Roost Airport, Aguilla, Arizona, on the day of the accident about 1140 hours. Visual meteorological conditions prevailed and no flight plan was filed for the local area personal flight.
Two witnesses, one of whom is a pilot, both stated that they observed the aircraft when it was approximately 1,000 feet agl until impact, and that it appeared to be in an inverted spin during that time.
An airworthiness inspector from the Scottsdale, Arizona, Flight Standards District Office, went to the accident site and examined the wreckage and engine. In his report, the inspector said that the aircraft appeared to have contacted the ground in an inverted attitude with little or no forward velocity. The inspector noted that no airworthiness discrepancies were noted with either the engine or airframe during the examination.
The pilot's medical certificate had expired almost 2 years prior to the date of the accident. The pilot's logbook was not located to ascertain his total flight hours and time in the aircraft, or to determine if he had any prior instruction in spin recovery techniques.
The forensic toxicology report from the FAA Civil Aeronautical Medical Institute stated that no controlled substances or other debilitating drugs were found. It was not possible to test for carbon monoxide or cyanide due to lack of suitable specimens.
Aircraft
- Registration
- N28BD
- Reported as
- Devendorf Glassair GL25 (GLASSAIR G)
- Category
- Airplane, amateur-built
- Serial number
- 3065
- Engine
- Lycoming IO-540-K1G5, 300 horsepower, reciprocating
- Damage
- Destroyed
- Fire
- On-Ground
- Flight
- Personal · Part 91
- Registered owner
- Bryan K. Devendorf
- Airworthiness certificate
- Special, Experimental (Special)
- Last inspection
- Annual · February 17, 1997 · 3 hours before
- Departed
- 7E0 · Aguilla, AZ
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
- 49
- Certificate
- Commercial
- Airplane ratings
- Single-engine sea, Single-engine land
- Instrument ratings
- Airplane
- Medical
- Class 2, Expired
- Seat
- Left
- Toxicology
- Performed
- Flight hours
- 1,600 total
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 30° at 10 knots
- Visibility
- 65 statute miles
- Lowest ceiling
- None
- Temperature
- 86 °F, dew point 37 °F
- Altimeter
- 30.00 inHg
- Observed at
- PHX, 66 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.