CHI85FER01

NTSB accident investigation · PZL PZL-104 Wilga 35A · St. Paul, MN · June 23, 1985

Accident · Serious injuriesFinal report
Date
June 23, 1985, 14:30 local (19:30 UTC)
Place
St. Paul, MN
Injuries
2 serious
Damage
Destroyed
Phase of flight
Initial climb
Aircraft
N81ASPZL PZL-104 Wilga 35A
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19850623027189A
Case key
12889

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

On this page

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.

Loss of control - in flightTakeoff - initial climb
Flight control surfaces/attachments - undeterminedCause
Raising of flaps - excessivePilot in commandCause
Proper climb rate - not possiblePilot in commandCause
In flight collision with terrain/waterDescent - uncontrolled

Analysis

The acft contacted the rwy following a loss of control during takeoff. At an alt of 50 to 100 ft AGL after a maximum performance takeoff, the plt rapidly raised the flaps from 44 to 0 degs and the acft suddenly pitched nose down. The plt attempted remedial action, however, the acft contacted the rwy in a level attitude. Both persons on board stated theflt controls felt as if they were frozen. The acft bounced back into the air, climbed to an alt of aprx 100 ft AGL and again pitched nose down. The acft impacted a second time in a left wing, nose low attitude.

Aircraft

Registration
N81AS
Reported as
PZL PZL-104 Wilga 35A (PZL-104 WI)
Category
Airplane
Serial number
86280
Airframe hours
600
Engine
Ivchenco AI-14RA, reciprocating
Damage
Destroyed
Flight
Personal · Part 91
Registered owner
Allan T. Dela
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Unknown · September 4, 1984 · 20 hours before
Destination
D97 · So. St. Paul, MN
Airport
D97 · So. St. Paul, runway 34, 4,000 × 75 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
45
Certificate
Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
2,166 total · 230 in this make and model · 1,988 as pilot in command · 23 in the last 90 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
340° at 5 knots
Visibility
20 statute miles
Lowest ceiling
None
Temperature
75 °F, dew point 50 °F

FAA reports on this event · 1

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

Other investigations on N81AS · 1

Matched to the same aircraft by N-number and date.