# Incident 20210711010639I: Aeronca 11AC, Bismarck, ND, July 11, 2021

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: July 11, 2021, 11:28 local time
- Place: Bismarck, ND
- Airport: Bismarck
- Damage: Minor damage
- Phase of flight: Landing: Touchdown
- Operating rules: General operating rules (Part 91)
- Location: 46.7727° N, 100.7457° W: Placed by OpenAirDocs at BISMARCK MUNI (BIS), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=46.7727&lon=-100.7457&mi=10
- Aircraft: N4118V, registered now (https://openairdocs.org/aircraft/N4118V) (OpenAirDocs)
- Registry model: Aeronca 11AC (registry code 0191102, https://openairdocs.org/model/aeronca-11ac) (OpenAirDocs)
- Registry engine: Continental A&C65 series (registry code 17003, https://openairdocs.org/engine/continental-a-c65-series) (OpenAirDocs)
- Reported make and model: AERONCA 11AC
- Reported engine: CONT MOTOR A&C65 SERIES
- People aboard: 2
- Fatal injuries: 0
- Other injuries: 0
- Pilot certificates: Flight instructor
- Pilot flight hours: 3,173 total
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20210711010639I

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

AIRCRAFT WAS OPERATING UNDER 14 CFR §91 ON A TRAINING FLIGHT.  STUDENT AND INSTRUCTOR WERE DOING TOUCH & GOES ON RUNWAY 13 AT MANDAN MUNICIPAL AIRPORT (Y19) WHEN THE LEFT MAIN LANDING GEAR (LMG) STRUT FAILED. A LOW PASS OVER THE LOCAL FBO CONFIRMED THE LMG HAD BECOME DETACHED FROM IT'S HOUSING AND WAS HANGING FROM THE AIRCRAFT.  THE CFI CHOSE TO DIVERT TO NEARBY BISMARCK MUNICIPAL (KBIS) FOR THE LONGER RUNWAY AND AVAILABLE EMERGENCY SERVICES.  THE AIRCRAFT VEERED HARD LEFT UPON TOUCHDOWN BUT REMAINED UPRIGHT . DAMAGE WAS LIMITED TO THE LEFT WING TIP AND RIGHT MAIN LANDING GEAR LEG.  NO INJURIES TO CFI OR STUDENT.

ON SCENE INSPECTION OF THE AIRCRAFT REVEALED THE LEFT MAIN LANDING GEAR STRUT HAD BEEN IMPROPERLY ASSEMBLED DURING MAINTENANCE CAUSING THIS FAILURE.

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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