# NTSB CHI86LA133: Let L-13, N30LH, Gregory, MI, April 27, 1986

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: April 27, 1986, 16:00 local (20:00 UTC)
- Place: Gregory, MI
- Coordinates: 42.450054, -84.080093 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=42.4501&lon=-84.0801&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 13455
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI86LA133
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/13455/pdf
- Page: https://openairdocs.org/ntsb/CHI86LA133

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Loss of control - in flight, landing - flare/touchdown
  - weather condition - tailwind (contributing factor)
  - go-around - not possible, pilot in command (contributing factor)
  - lack of total experience in kind of aircraft, pilot in command (cause)
  - weather condition - gusts (contributing factor)
  - compensation for wind conditions - inadequate, pilot in command (cause)
- Dragged wing,rotor,pod,float or tail/skid, landing - flare/touchdown
  - directional control - not maintained, pilot in command (cause)
- On ground/water collision with object, landing - roll
  - object - building(nonresidential)

## Analysis

THE PILOT STATED THAT DURING LANDING THE RIGHT WING OF THE GLIDER TOUCHED THE GROUND CAUSING A RIGHT TURN. THE LEFT WING THEN CAUGHT ON A TRUCK TIRE CAUSING A 70 DEGREE TURN TO THE LEFT. THE GLIDER WAS STOPPED WHEN THE RIGHT WING STRUCK A BARN. HE WAS LATER TOLD THAT HE LANDED IN A QUARTERING TAILWIND OF 15 KTS GUSTING TO 20 KTS.

## Aircraft

- Registration: [N30LH](https://openairdocs.org/deregistered/N30LH-1988-12-15), registration cancelled 1988-12-15, S/N 026632 (OpenAirDocs)
- Reported make and model: LET L-13
- Registry model: [Let BLANIK L-13](https://openairdocs.org/model/let-blanik-l-13) (registry code 1360306) (OpenAirDocs)
- Category: Glider
- Serial number: 026632
- Engines: NONE NONE unknown
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Sandhill Soaring Club
- Airworthiness certificate: Standard, Normal
- Airport: 69G, Richmond Field, runway 36, 2,520 × 75 ft, grass/turf

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 53; private, commercial; airplane ratings: multi-engine land, single-engine sea, single-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: front; flight hours: 424 total, 6 in this make and model, 345 as pilot in command, 1 in the last 90 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 140° at 15 knots, gusting 5
- Visibility: 20 statute miles
- Lowest ceiling: none
- Temperature: 61 °F, dew point -0 °F

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19860427015199A](https://openairdocs.org/incident/19860427015199A), Apr 27, 1986: Let L13BLANIK, Gregory, MI, Substantial damage. Dragged a wing tip during a downwind landing. Wing caught on a runway edge tire causing a swerve into a barn.

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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