FTW99LA062

NTSB accident investigation · Diamond Aircraft Industries DA 20-A1 · Tomball, TX · October 1, 1998

Accident · No injuriesLimited investigationFinal report
Date
October 1, 1998, 12:30 local (17:30 UTC)
Place
Tomball, TX
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N527SSDiamond Aircraft Industries DA 20-A1
Weather
Visual (VMC) · Day
Status
Completed · report April 20, 2000
Report
Approved by Office Director
FAA report
19981001042209A
Case key
45557

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 pilot's failure to follow the checklist and secure the canopy, which resulted in the canopy separating from the airplane during takeoff initial climb. A factor was the pilot's failure to detect the canopy warning light prior to takeoff.

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.

Miscellaneous/otherTakeoff - initial climb
Checklist - not followedPilot in commandCause
Caution/warning system/light(s) - not identifiedPilot in commandFactor
Window,canopy - not securedCause
Window,canopy - separationCause

Analysis

During takeoff, at about 400 feet, the canopy separated from the airplane. The pilot turned the airplane back towards the airport and landed without further incident. The pilot reported that he did not explain to the passenger that the right side of the canopy needed to be latched before takeoff. The pilot also reported that he did not observe the canopy warning light during taxi to the runway, nor did he complete the 'Canopy-Secure' portion of the pre-takeoff checklist.

Factual narrative

On October 1, 1998, at 1230 central daylight time, a Diamond Aircraft Industries DA 20-A1 single-engine airplane, N527SS, was substantially damaged when the canopy separated during takeoff from David Wayne Hooks Memorial Airport near Tomball, Texas. The private pilot and his passenger were not injured. The airplane was registered to MDFC Equipment Leasing Corporation of Long Beach, California, and operated by Flight Academy International of Spring, Texas. Visual meteorological conditions prevailed, and a flight plan was not filed for the 14 Code of Federal Regulations (CFR) Part 91 personal flight, which was originating at the time of the accident.

According to the Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1/2, the pilot did not explain to the passenger that the right side of the canopy needed to be latched before takeoff. The pilot stated that he did not observe the canopy warning light during taxi to the runway, nor did he complete the "Canopy-Secure" portion of the pre-takeoff checklist. The pilot also stated that after takeoff from runway 17L, at about 400 feet, he heard a "rapid-sounding noise for several repetitions, followed by the canopy disengaging itself from the fuselage."

Following the separation of the canopy, the pilot's headset was lost from the "burst of wind." As a result, tower communication was not possible. The pilot turned the aircraft back towards the airport and landed on runway 35L "without further damage to [the] aircraft."

The canopy was recovered approximately 1/4 mile south of the localizer antennas for runway 17R.

According to the FAA inspector, the main structural spar behind the cockpit, to which the canopy was attached, sustained damage.

Aircraft

Registration
N527SS
Reported as
Diamond Aircraft Industries DA 20-A1
Category
Airplane
Serial number
10090
Airframe hours
680
Engine
Rotax 912/F3, 80 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Flight Academy International
Registered owner
Mdfc Equipment Leasing Corp.
Airworthiness certificate
Standard, Utility
Last inspection
100 hour · August 25, 1998 · 32 hours before
Departed
DWH
Destination
CLL · College Station, TX
Airport
DWH · David Wayne Hooks Airport, runway 35L, 3,997 × 35 ft, asphalt

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
28
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
14 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Temperature
88 °F, dew point 72 °F
Altimeter
29.00 inHg

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.