# Incident 20220118001119I: Aero Commander 100-180, Norman, OK, January 18, 2022

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: January 18, 2022, 12:40 local time
- Place: Norman, OK
- Airport: University Of Oklahoma Westhei
- Damage: Minor damage
- Phase of flight: Landing: Approach
- Operating rules: General operating rules (Part 91)
- Location: 35.2456° N, 97.4721° W: Placed by OpenAirDocs at UNIVERSITY OF OKLAHOMA WESTHEIMER (OUN), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=35.2456&lon=-97.4721&mi=10
- Aircraft: N4096X, registered now (https://openairdocs.org/aircraft/N4096X) (OpenAirDocs)
- Registry model: Aero Commander 100-180 (registry code 0140208, https://openairdocs.org/model/aero-commander-100-180) (OpenAirDocs)
- Registry engine: Lycoming O&VO-360 series (registry code 41514, https://openairdocs.org/engine/lycoming-o-vo-360-series) (OpenAirDocs)
- Reported make and model: AERO COMMANDER 100-180
- People aboard: 2
- Fatal injuries: 0
- Other injuries: 0
- Pilot certificates: Commercial pilot
- Pilot flight hours: 279 total
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20220118001119I

## Narrative

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

ON JANUARY 18, 2022, A STUDENT PILOT AND INSTRUCTOR PILOT WERE PERFORMING PATTERN WORK AT MAX WESTHEIMER AIRPORT IN NORMAN, OKLAHOMA WHEN THE PROPELLER SPINNER CONE DEPARTED THE AIRCRAFT. BOTH PILOTS STATED THEY DID NOT SEE THE SPINNER CONE DEPART THE AIRCRAFT BUT RATHER FELT AN UNUSUAL VIBRATION AND DECIDED TO LAND THE AIRCRAFT. AFTER LANDING AND ON INSPECTION OF THE AIRCRAFT THEY NOTICED THE SPINNER CONE WAS MISSING AND ALL THAT REMAINED WAS THE BACKING PLATE OF THE SPINNER CONE. THERE WAS NO OTHER DAMAGE TO THE AIRCRAFT. THE OTHER PORTION OF THE SPINNER CONE WAS LATER RETRIEVED BY AIRPORT PERSONNEL AND THERE WERE WHAT APPEARED TO BE EVIDENCE OF METAL STRESS FRACTURES IN THE AREA OF THE SPINNER CONE BACKING PLATE WHERE IT ATTACHED TO THE PROPELLER. THE DAMAGED SPINNER CONE BACKING PLATE WAS REMOVED AND THE AIRCRAFT WAS RETURNED TO SERVICE. A REVIEW OF THE AIRCRAFT RECORDS DID NOT INDICATE ANY RECENT MAINTENANCE HAD BEEN PERFORMED IN THE AREA OF THE PROPELLER OR SPINNER CONE AND THE ANNUAL INSPECTION OF THIS AIRCRAFT WAS CURRENT AT THE TIME OF THE INCIDENT.

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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