# N9639B: 1981 Cessna 172RG, registration cancelled 2014-10-06

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: October 6, 2014
- Status when cancelled: Valid registration
- Airframe: [Cessna 172RG](https://openairdocs.org/model/cessna-172rg) (registry code 2072438)
- Engine: [Lycoming O&VO-360 series](https://openairdocs.org/engine/lycoming-o-vo-360-series) (registry code 41514)
- Data sheets: [TCDS 3A17](https://openairdocs.org/tcds/3A17) (OpenAirDocs)
- Serial number: 172RG0937
- Year built: 1981
- Type of aircraft: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Standard, normal
- Airworthiness date: August 17, 1981
- Certificate issued: March 17, 1993
- Last registry action: August 28, 2013
- Mode S code: AD6AE0
- Owner when cancelled: [Christiansen Aviation Inc](https://openairdocs.org/faa-owner/CHRISTIANSEN%20AVIATION%20INC)
- Location: [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington)
- Owner type: Corporation
- Owner's area on the map: 39.7999° N, 75.5422° W: Placed by OpenAirDocs at the center of ZIP code 19803, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N9639B
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=9639B
- Page: https://openairdocs.org/deregistered/N9639B-2014-10-06

From the FAA registry file of October 29, 2026, cancelled registrations. Owners' street addresses are left out. The Mode S code belongs to the N-number, not the airframe.

ADs and bulletins for the Cessna 172RG: https://openairdocs.org/model/cessna-172rg.md

## Service difficulty reports (2)

Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

- [SDR 96ZZZX2017](https://openairdocs.org/sdr/96ZZZX2017), Aug 24, 1995: ACTUATOR. CRACKED. THE RADIUS OF THE ACTUATOR APPEARED TO BE CRACKED, THE PART WAS REMOVED AND DYE PENETRANT INSPECTION PERFORMED. FOUND NUMEROUS CRACKS AROUND THE RADIUS WHERE TH
- [SDR 95ZZZX6145](https://openairdocs.org/sdr/95ZZZX6145), Aug 24, 1995: ACTUATOR. CRACKED. THE RADIUS OF THE ACTUATOR APPEARED TO BE CRACKED, THE PART WAS REMOVED AND DYE PENETRANT INSPECTION PERFORMED. FOUND NUMEROUS CRACKS AROUND THE RADIUS WHERE TH

## FAA accident and incident reports (2)

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.

- [Incident 20001101031989I](https://openairdocs.org/incident/20001101031989I), Nov 1, 2000: Cessna 172RG (N9639B), Oakland, CA, Minor damage. (-23)At about 2030 hrs on approach to iak instructor pilot selected "landing gear down". Down & locked light did not illuminate. Nose & r/h main verified down…
- [Incident 19920702023729I](https://openairdocs.org/incident/19920702023729I), Jul 2, 1992: Cessna 172RG (N9639B), Las Cruces, NM, Minor damage. Unable to extend right main gear. Landed with right gear partially extended.

## Other aircraft with N9639B

- [Cancelled 1957-06-13](https://openairdocs.org/deregistered/N9639B-1957-06-13): Cessna 180A, S/N 32936. Owner: [Cessna Aircraft Co](https://openairdocs.org/faa-owner/CESSNA%20AIRCRAFT%20CO), [Wichita, KS](https://openairdocs.org/faa-place/KS/Wichita)

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