# N4521A: 1979 Gulfstream American AA-5B, registration cancelled 2018-05-08

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: May 8, 2018
- Status when cancelled: Sale reported, canceled
- Airframe: [Gulfstream American AA-5B](https://openairdocs.org/model/gulfstream-american-aa-5b) (registry code 3970106)
- Engine: [Lycoming O&VO-360 series](https://openairdocs.org/engine/lycoming-o-vo-360-series) (registry code 41514)
- Data sheets: [TCDS A16EA](https://openairdocs.org/tcds/A16EA) (OpenAirDocs)
- Serial number: AA5B1070
- Year built: 1979
- Type of aircraft: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Standard, normal, utility
- Airworthiness date: January 23, 1979
- Last registry action: May 2, 2016
- Mode S code: A57C06
- Location: [Parsippany, NJ](https://openairdocs.org/faa-place/NJ/Parsippany)
- Owner type: Individual
- Owner's area on the map: 40.8527° N, 74.4007° W: Placed by OpenAirDocs at the center of ZIP code 07054, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N4521A
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4521A
- Page: https://openairdocs.org/deregistered/N4521A-2018-05-08

From the FAA registry file of October 31, 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 Gulfstream American AA-5B: https://openairdocs.org/model/gulfstream-american-aa-5b.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 2011FA0000671](https://openairdocs.org/sdr/2011FA0000671), Aug 7, 2011: ALTERNATOR. LOOSE. ALTERNATOR CASE BOLTS WORKED LOOSE, SAFETY WIRE BROKEN. CATASTROPHIC FAILURE AT 152 HRS SINCE O/H. THE ORIGINAL MFG HISTORICALLY LAST MUCH LONGER. ADVISE SELF L
- [SDR 2007FA0000059](https://openairdocs.org/sdr/2007FA0000059), Jan 10, 2007: ATTACH ANGLE. CRACKED. DURING INSPECTION, ANGLE PN 5102296-15 AND PN 5102296-16, WERE FOUND CRACKED IN THE BEND RADIUS OF THE UPPER END OF THE ANGLE AS INSTALLED. CAUSE OF CRACKING IS

## Other aircraft with N4521A

- [Cancelled 1956-12-04](https://openairdocs.org/deregistered/N4521A-1956-12-04): Piper PA-22-150, S/N 22-3828. Owner: [Helble Vernon L](https://openairdocs.org/faa-owner/HELBLE%20VERNON%20L), [Montpelier, IA](https://openairdocs.org/faa-place/IA/Montpelier)

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