- Date
- May 31, 1990, 18:45 local (Jun 1, 1990, 00:45 UTC)
- Place
- Longmont, CO
- Injuries
- 1 fatal, 1 minor
- Damage
- Destroyed
- Phase of flight
- Approach
- Aircraft
- N89834Cessna 152
- Weather
- Visual (VMC) · Dusk
- Status
- Completed · report November 9, 1992
- Report
- Approved by Office Director
- Case key
- 17834
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 continued into hazardous weather conditions.
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
At the completion of an instructional flight during final approach for landing the aircraft encountered windshear/microburst activity and a go-around was initiated. At the intitiation of the go-around the flaps were raised from full deployment to up, contrary to published procedures. The aircraft settled and struck a tree. The flight instructor sustained minor injuries in the accident and the student pilot fatal injuries. The aircraft was destroyed. The flight instructor was aware of advisory circulars concerning windshear but did not have a working knowledge. Just prior to the accident a PIREP was made warning of high wind, windshear, and strong down drafts. According to the national center for atmospheric research, a microburst gust front passed through the airport between 1844 and 1846.
Aircraft
- Registration
- N89834
- Reported as
- Cessna 152
- Category
- Airplane
- Serial number
- 15282886
- Airframe hours
- 5,680
- Engine
- Lycoming O-235-L2C, 110 horsepower, reciprocating
- Damage
- Destroyed
- Flight
- Instructional · Part 91
- Operator
- Judson Flying Service
- Registered owner
- Judson Flying Service
- Airworthiness certificate
- Standard, Normal
- Last inspection
- 100 hour · April 27, 1990 · 91 hours before
- Departed
- 2V2
- Destination
- 2V2
- Airport
- 2V2 · Vance Brand
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
- 31
- Certificates
- Commercial, Flight instructor
- Airplane ratings
- Single-engine land, Multi-engine land
- Instrument ratings
- Airplane
- Medical
- Class 2, Valid Medical--w/ waivers/lim
- Seat
- Right
- Flight hours
- 584 total · 485 in this make and model · 537 as pilot in command · 162 in the last 90 days · 97 in the last 30 days · 1 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Dusk
- Wind
- 320° at 10 knots, gusting 15
- Visibility
- 40 statute miles
- Lowest ceiling
- 20,000 ft broken
- Temperature
- 70 °F, dew point 46 °F
- Altimeter
- 29.00 inHg
- Observed at
- BJC, 18 nm away
Other investigations on N89834 · 1
Matched to the same aircraft by N-number and date.