DEN01LA014

NTSB accident investigation · Mooney M20J · Longmont, CO · November 13, 2000

Accident · Minor injuriesLimited investigationFinal report
Date
November 13, 2000, 11:00 local (18:00 UTC)
Place
Longmont, CO
Injuries
2 minor
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N201JPMooney M20J
Weather
Visual (VMC) · Day
Status
Completed · report November 1, 2001
Report
Approved by Office Director
FAA report
20001113022889A
Case key
50625

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 total failure of the left main gear strut during the landing roll. A contributing factor was the 6-foot high snow bank that the airplane impacted when it left the runway.

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.

Airframe/component/system failure/malfunctionLanding - roll
Landing gear,main gear strut - failure,totalCause
Loss of control - on ground/waterLanding - roll
Aircraft control - not possiblePilot in command(cfi)
On ground/water encounter with terrain/waterLanding - roll
Terrain condition - snowbankFactor

Analysis

The flight was a rental check out. The flight instructor said that they approached the runway to practice some touch and go landings. He said that the student was flying the airplane, and that the approach was uneventful. The flight instructor said that as soon as the airplane was on the ground, it turned sharply to the left. The student said that the flight instructor took control of the airplane, but he could not prevent its departure from the runway. The airplane impacted a 6-foot high snow bank. Postaccident investigation revealed that the left main landing gear had separated from the airplane immediately upon touch down. Examination of its strut revealed that it was corroded approximately 1/3 of the way through.

Factual narrative

On November 13, 2000, at approximately 1100 mountain standard time, a Mooney M20J, N201JP, was substantially damaged during landing at Vance Brand Airport, Longmont, Colorado. The flight instructor and private pilot receiving instruction both received minor injuries. The airplane was being operated by Jeffco Flight School, Broomfield, Colorado, under Title 14 CFR Part 91. Visual meteorological conditions prevailed for the cross-country flight that originated from Broomfield, Colorado, approximately 30 minutes before the accident. The flight instructor had not filed a flight plan.

The flight instructor said that the flight was a rental check out. He said that after 30 minutes of air work, they approached Longmont's airport for some touch and go landings. He said that the student was flying the airplane, and that the approach was uneventful. The flight instructor said that as soon as the airplane was on the ground, it turned sharply to the left. The student said that the flight instructor took control of the airplane, but he could not prevent its departure from the runway. The airplane impacted a 6-foot high snow bank and bent the left wing up, approximately 5 feet from the tip.

Postaccident investigation revealed that the left main landing gear had separated from the airplane immediately upon touch down. Examination of its strut revealed that it was corroded approximately 1/3 of the way through.

Aircraft

Registration
N201JP
Reported as
Mooney M20J
Category
Airplane
Serial number
24-0215
Airframe hours
2,900
Engine
Lycoming IO-360-A3B6D, 200 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Registered owner
Jeffco Aviation, Inc.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · November 1, 2000 · 20 hours before
Departed
BJC · Broomfield, CO
Destination
2V2
Airport
2V2 · Vance Brand Airport, runway 29, 4,700 × 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
30
Certificates
Commercial, Flight instructor
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--w/ waivers/lim
Seat
Right
Flight hours
460 total · 257 in this make and model · 392 as pilot in command · 160 in the last 90 days · 87 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Temperature
70 °F, dew point 64 °F
Altimeter
30.00 inHg
Observed at
FNL, 18 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.