# Incident 20211102018879I: Cessna 172F, Cahokia, IL, November 2, 2021

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: November 2, 2021, 10:45 local time
- Place: Cahokia, IL
- Airport: St Louis Downtown
- Damage: No damage
- Phase of flight: Maneuver
- Operating rules: General operating rules (Part 91)
- Location: 38.5704° N, 90.1551° W: Placed by OpenAirDocs at ST LOUIS DOWNTOWN (CPS), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.5704&lon=-90.1551&mi=10
- Aircraft: N8388U (not matched to a registry record)
- Reported make and model: CESSNA 172F
- Reported engine: CONT MOTOR 0-300 SER
- People aboard: 2
- Fatal injuries: 0
- Other injuries: 0
- Pilot certificates: Commercial pilot, flight instructor
- Pilot flight hours: 630 total
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20211102018879I

## Narrative

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

RECEIVED REPORT OF A FLIGHT CONTROL FAILURE ON A CESSNA 172, REGISTRATION N8388U, SERIAL #17252288 DURING FLIGHT INSTRUCTION WITH A CERTIFIED FLIGHT INSTRUCTOR  AND A STUDENT PILOT.  CERTIFIED FLIGHT INSTRUCTOR AND STUDENT WERE PRACTICING STALLS WHEN, AFTER 3 OR 4 STALLS, THE YOKE JAMMED IN THE REAR POSITION AND THE AIRCRAFT WENT INTO A SPIN.  AIRCRAFT LOST OVER 700 FEET OF ALTITUDE BEFORE CERTIFIED FLIGHT INSTRUCTOR WAS EVENTUALLY ABLE TO RECOVER AFTER FORCING THE YOKE FORWARD.  CERTIFIED FLIGHT INSTRUCTOR IMMEDIATELY FLEW BACK TO KCPS.  MECHANIC THAT RESPONDED FOUND THAT THE YOKE HAD COME INTO CONTACT AGAINST A COPPER OIL PRESSURE LINE WHICH SEVERELY LIMITED YOKE MOVEMENT.  MECHANIC REROUTED COPPER OIL PRESSURE LINE AND ENSURED THAT WIRE BUNDLES WERE CLEAR OF YOKE MOVEMENT.

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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