CHI86LA186

NTSB accident investigation · Schweizer SGS 2-33A · Mattoon, IL · July 28, 1986

Accident · Minor injuriesLimited investigationFinal report
Date
July 28, 1986, 11:35 local (16:35 UTC)
Place
Mattoon, IL
Injuries
2 minor
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N65901Schweizer SGS 2-33A
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19860728036519A
Case key
13497

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.

Miscellaneous/otherTakeoff
Aircraft preflight - inadequatePilot in commandCause
Spoiler extension - inadvertentPilot in commandCause
Speed brakes - inadvertent usePilot in commandCause
Airspeed - not attained
Proper climb rate - not possible
Forced landingManeuvering - turn to landing area (emergency)
Hard landingLanding - flare/touchdown

Analysis

The glider was being towed for takeoff behind a tow plane. According to the glider instructor, the initial acceleration appeared normal. As the tow plane and the glider neared the end of the runway, the glider instructor believed the tow plane was experiencing a problem accelerating to takeoff speed, so he released the tow line at an altitude of aprx 5 ft. he then turned for an area for landing and the glider touched down in a 'nose down pancake landing.' Later, the instructor learned that the speed brakes and spoilers were fully deployed during the entire takeoff run & subsequent short flight.

Aircraft

Registration
N65901
Reported as
Schweizer SGS 2-33A
Category
Glider
Serial number
361
Engine
None NONE, unknown
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Illinois Wing Civil Air Patrol
Airworthiness certificate
Standard, Normal
Airport
MTO · Coles County Memorial, runway 17, 1,450 × 250 ft, grass/turf

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
70
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 2, Unknown
Seat
Rear
Flight hours
600 total · 93 in this make and model · 504 as pilot in command · 11 in the last 90 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
300° at 13 knots
Visibility
15 statute miles
Lowest ceiling
None
Temperature
88 °F, dew point 72 °F
Altimeter
29.00 inHg
Observed at
DEC, 30 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.