# NTSB LAX84LA037: Schweizer SGS 2-33A, N7558, New River, AZ, October 23, 1983

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: October 23, 1983, 13:15 local (20:15 UTC)
- Place: New River, AZ
- Coordinates: 33.590919, -112.100631 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=33.5909&lon=-112.1006&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): 24074
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX84LA037
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/24074/pdf
- Page: https://openairdocs.org/ntsb/LAX84LA037

## Sequence of events

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

- Loss of control - on ground/water, landing - roll
  - weather condition - crosswind (contributing factor)
  - compensation for wind conditions - improper, pilot in command (cause)
  - flight controls - improper use of, pilot in command (cause)
  - directional control - not maintained, pilot in command (contributing factor)
  - proper alignment - not maintained, pilot in command (contributing factor)
- On ground/water encounter with terrain/water, landing - roll
  - terrain condition - high vegetation (contributing factor)
- On ground/water collision with object, landing - roll
  - object - tree(s) (contributing factor)

## Analysis

THE STUDENT PLT WAS ON HIS 9TH SOLO LANDING WHEN HE LANDED ON RWY 27 WITH A X-WING FROM 200 DEG AT 10 KTS. DURING THE LANDING, THE GLIDER DRIFTED TO THE NORTH INTO SOME BUSHES, THEN SWERVED INTO A TREE. THE PLT REPORTED THAT UPON LANDING, HE LOWER THE WRONG WING (RIGHT WING) & ALLOWED THE GLIDER TO DRIFT TO THE NORTH.

## Aircraft

- Registration: [N7558](https://openairdocs.org/aircraft/N7558), registered now, S/N 188, built 1970 (OpenAirDocs)
- Reported make and model: SCHWEIZER SGS 2-33A
- Registry model: [Schweizer SGS 2-33A](https://openairdocs.org/model/schweizer-sgs-2-33a) (registry code 8051606) (OpenAirDocs)
- Registry engine: [NONE](https://openairdocs.org/engine/none) (registry code 00000, none) (OpenAirDocs)
- Category: Glider
- Serial number: 188
- Airframe hours: 12577
- Engines: unknown
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Roy M. Coulliette
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, October 8, 1983, 36 hours before
- Airport: AZ05, Pleasant Valley, runway 27, dirt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 16; student; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; seat: center; flight hours: 41 total, 41 in this make and model, 9 as pilot in command, 31 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 200° at 10 knots
- Visibility: 45 statute miles
- Lowest ceiling: none
- Temperature: 81 °F, dew point 54 °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 19831023056119A](https://openairdocs.org/incident/19831023056119A), Oct 23, 1983: Scwzer SGS233A, New River, AZ, Substantial damage. Student glider pilot allowed right wing to collide with bush which caused ground loop into tree.

## Other investigations on N7558 (2)

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.

- [NTSB LAX87LA035](https://openairdocs.org/ntsb/LAX87LA035), Nov 9, 1986: Schweizer SGS2-33A (N7558), Sun City, AZ, substantial damage
- [NTSB LAX74FUJ70](https://openairdocs.org/ntsb/LAX74FUJ70), Jun 17, 1974: Schweizer SGS233 (N7558), Phoenix, AZ, substantial damage

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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