LAX89LA027

NTSB accident investigation · Let L-13 · Marana, CA · October 29, 1988

Accident · FatalLimited investigationFinal report
Date
October 29, 1988, 12:20 local (19:20 UTC)
Place
Marana, CA
Injuries
1 fatal, 1 serious
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N90848Let L-13
Weather
Visual (VMC) · Day
Status
Completed · report October 3, 1989
Report
Approved by Office Director
FAA report
19881029048549A
Case key
26279

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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Analysis

The pilot reported that shortly after liftoff from runway 26 the control stick became difficult to move. He decided to continue the air tow and release at 200 feet AGL after release, the pilot turned the glider to return to the runway to land. He was still having difficulty controlling the glider and felt that the passenger, who was in the front seat, might have been holding the forward control stick. The pilot instructed the passenger to release the stick. Control was momentarily regained then lost again. The pilot could not maintain control of the glider and it collided with runway 08. An examination of the wreckage revealed no problems with the glider's control mechanisms. An examination of another blanik L-13 indicated that very little force is needed on the forward control stick to render the rear stick ineffective. The flight was the passenger's first in small aircraft and was part of therapy being used to treat the passenger for a mild organic brain syndrome.

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 flightManeuvering
Flt control syst,yoke/control stick - blocked(partial)Cause
Flight controls - restrictedPassengerCause
Anxiety/apprehensionPassengerFactor
In flight collision with terrain/waterDescent - uncontrolled

Aircraft

Registration
N90848
Reported as
Let L-13
Category
Glider
Serial number
025704
Airframe hours
2,984
Engine
unknown
Damage
Substantial damage
Flight
Part 91
Registered owner
Tucson Soaring Club, Inc.
Airworthiness certificate
Standard, Aerobatic
Last inspection
Annual · August 25, 1988 · 22 hours before
Airport
El Tiro, runway 8, 4,700 × 100 ft, gravel

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
66
Certificate
Commercial
Airplane ratings
Single-engine land, Multi-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Rear
Flight hours
2,500 total

Weather

Conditions
Visual (VMC) · Day
Visibility
30 statute miles
Lowest ceiling
None

FAA reports on this event · 1

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