FTW97LA188

NTSB accident investigation · Aeromot AMT-200 · Longmont, CO · May 9, 1997

Accident · No injuriesLimited investigationFinal report
Date
May 9, 1997, 11:00 local (17:00 UTC)
Place
Longmont, CO
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N757DMAeromot AMT-200
Weather
Visual (VMC) · Day
Status
Completed · report August 25, 1997
Report
Approved by Office Director
FAA report
19970509009989A
Case key
20217

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

the dual student pilot's improper landing flare and the flight instructor's inadequate supervision of the flight.

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.

Hard landingLanding - flare/touchdown
Flare - improperDual studentCause
Supervision - inadequatePilot in command(cfi)Cause
Gear collapsedLanding - flare/touchdown
Landing gear,main gear - overload

Analysis

While conducting instruction, the CFI was providing the student with the problem of conducting a forced landing on the runway following a simulated loss of engine power. During the landing sequence at about 3 to 5 feet above the ground, the student went forward on the controls and the aircraft landed hard. The main landing geared sheared off, as did the propeller, and the motor glider slid to a stop on the runway.

Factual narrative

On May 9, 1997, approximately 1100 mountain daylight time, an Aeromot AMT-200 powered glider, N757DM, sustained substantial damage during a simulated forced landing at Vance Brand Airport, Longmont, Colorado. The commercial pilot/flight instructor and his student were not injured. The flight was operating under Title 14 CFR Part 91 when the accident occurred and no flight plan was filed. Visual meteorological conditions prevailed.

According to the flight instructor, the student was flying and they had departed runway 29 at Vance Brand and were on a departure crosswind when he pulled the engine to idle to simulate an engine failure. The student set up for a landing on runway 11 and at approximately 3 to 5 feet above the ground at 55 knots, the student, instead of flaring for landing, put the stick full forward. The motor glider impacted the runway and sheared off the main landing gear. The aircraft slid down the runway and came to a stop.

According to Thomas Brenza, of Enchantment Aero Services, who conducted repairs to the aircraft, the following repairs were accomplished:

1. Replace left and right main landing gear. 2. Replace left and right brake lines. 3. Repair propeller hub and replace propeller blades. 4. Repair finish crack in wing leading edge forward of the right main landing gear. 5. Repair puncture in right lower wing skin aft of landing gear and repair finish damage. 6. Repair finish cracks at inboard end of right aileron on lower left wing skin. 7. Repair delamination on right wing aft spar at root. 8. Inspect aileron hinge areas, both wings. 9. Inspect lift pins and spar pins, both wings. 10. Repair delamination and finish damage on lower left wing skin aft of main landing gear. 11. Repair finish cracks in left lower wing skin at inboard corner of aileron.

Aircraft

Registration
N757DM
Reported as
Aeromot AMT-200
Category
Unknown
Serial number
200.047
Airframe hours
518
Engine
Rotax 912 A2, 80 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Registered owner
Denis Paul Michaud
Airworthiness certificate
Standard, Utility
Last inspection
Annual · November 12, 1996 · 90 hours before
Departed
2V2
Airport
2V2 · Vance Brand, runway 11, 5,000 × 75 ft, concrete

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
39
Certificates
Commercial, Flight instructor
Seat
Right
Flight hours
790 total · 410 in this make and model · 726 as pilot in command · 70 in the last 90 days · 31 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
60° at 5 knots
Visibility
50 statute miles
Lowest ceiling
None
Temperature
61 °F
Altimeter
30.00 inHg
Observed at
BJC, 15 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.