GAA19CA338

NTSB accident investigation · Pzl-Swidnik PW-5 · Independence, WI · June 10, 2019

Accident · No injuriesData collectionFinal report
Date
June 10, 2019, 14:49 local (19:49 UTC)
Place
Independence, WI
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N962JHPzl-Swidnik PW-5
Defining event
Enroute: Loss of lift
Weather
Visual (VMC) · Day
Status
Completed · report November 6, 2019
Report
Approved by Office Director
NTSB office
General Aviation Accidents
Parties
FAA
Case key
99621

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 separation of the canopy from the glider during an off-airport landing for reasons that could not be determined.

Findings · 1

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Windows-windshield system: flight compartment windowsAircraft › Aircraft structures · Not specifiedAll aircraft: 42 casesProbable cause

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

The pilot of the glider reported that, en route to his destination, the glider lost lift, so he diverted to a corn field for landing. During the landing, the glider bounced, and "the canopy popped off of the fuselage" and broke into several pieces. The glider sustained substantial damage to the canopy. The pilot reported that there were no preaccident mechanical failures or malfunctions with the glider that would have precluded normal operation. Although the pilot said he bumped the canopy during the bounced landing, it could not be determined if that or some other mechanism caused the canopy to separate.

Factual narrative

The pilot of the glider reported that, while landing in a corn field, "the canopy popped off of the fuselage" and broke into several pieces. The glider sustained substantial damage to the canopy. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.

Aircraft

Registration
N962JH
Reported as
Pzl-Swidnik PW-5
Category
Glider
Serial number
17.07.018
Built
1997
Airframe hours
407
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · August 14, 2018
Departed
SYN · Stanton, MN
Destination
BCK · Black River Falls, WI
Equipment
Data recorder

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
69
Injuries
None
Certificate
Private
Last flight review
September 17, 2017
Seat
Single
Restraint
4-point
Flight hours
368 total · 158 in this make and model · 352 as pilot in command · 19.1 in the last 90 days · 10.3 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
310° at 9 knots, gusting 16
Visibility
10 statute miles
Temperature
75 °F, dew point 39 °F
Altimeter
30.13 inHg
Observed at
KBCK, 24 nm away

Docket · 2

The files NTSB released with the investigation on August 7, 2019, on NTSB’s docket system: statements, records, photos and specialists’ reports. 785 KB in all.