# NTSB FTW82DA191: Erco 415-C, N99129, Sand Springs, OK, May 23, 1982

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Final report
- Date: May 23, 1982, 12:45 local (17:45 UTC)
- Place: Sand Springs, OK
- Coordinates: 36.130954, -96.129684 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=36.1310&lon=-96.1297&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 2 minor
- Status: Completed, report May 23, 1983
- Report: Approved by Office Director
- NTSB case key (mKey): 72512
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW82DA191
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/72512/pdf
- Page: https://openairdocs.org/ntsb/FTW82DA191

## Sequence of events

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

- Hard landing, landing - flare/touchdown
  - weather condition - crosswind (contributing factor)
  - level off - improper, pilot in command (cause)
- Airframe/component/system failure/malfunction, landing - flare/touchdown
  - landing gear,axle - overload
- Nose over, landing - roll

## Analysis

THE PILOT STATED THAT ON HIS SECOND APPROACH FOR A TOUCH AND GO LANDING, THE AIRCRAFT WAS A LITTLE HIGH ON FINAL. HE REDUCED POWER TO COMPLETE A SHORT FIELD LANDING ON THE SOD STRIP. THE AIRCRAFT LANDED MODERATELY HARD IN A FLAT ATTITUDE AND THE NOSE GEAR AXLE SHEARED OFF. THE NOSE GEAR THEN DUG INTO THE GROUND AND THE AIRCRAFT NOSED OVER.

## Aircraft

- Registration: [N99129](https://openairdocs.org/aircraft/N99129), registered now, S/N 1752 (OpenAirDocs)
- Reported make and model: ERCO 415-C
- Registry model: [Engineering & Research 415-C](https://openairdocs.org/model/engineering-research-415-c) (registry code 0420302) (OpenAirDocs)
- Category: Airplane
- Serial number: 1752
- Airframe hours: 1915
- Engines: CONTINENTAL C-85 85 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Herbert W. Hartz
- Registered owner: Herbert W. Hartz
- Departed: 6F3, SAND SPRINGS, OK
- Destination: 6F3, SAND SPRINGS, OK
- Airport: 6F3, Eagles Nest, runway 17, 3,000 × 100 ft, grass/turf

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 34; private; airplane ratings: single-engine land; medical: class 2, valid medical--no waivers/lim.; flight hours: 700 total, 110 in this make and model, 8 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 90° at 5 knots
- Visibility: 15 statute miles
- Temperature: 181 °F
- Altimeter: 30.00 inHg

## 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 19820523018209A](https://openairdocs.org/incident/19820523018209A), May 23, 1982: Univar 415C, Sand Springs, OK, Substantial damage. Pilot made hard landing causing nose gear to break off resulting in aircraft flipping inverted.

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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