# N58MM: 1979 Gates Learjet 35A, registration cancelled 2018-03-30

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: March 30, 2018
- Status when cancelled: Registration expired, pending cancellation
- Airframe: [Gates Learjet 35A](https://openairdocs.org/model/gates-learjet-35a) (registry code 5170602)
- Data sheets: [TCDS A10CE](https://openairdocs.org/tcds/A10CE) (OpenAirDocs)
- Serial number: 261
- Year built: 1979
- Type of aircraft: Fixed wing multi engine
- Airworthiness: Standard
- Airworthiness date: August 4, 1979
- Certificate issued: October 14, 2014
- Last registry action: October 14, 2014
- Mode S code: A774AE
- Owner when cancelled: [N58mm LLC](https://openairdocs.org/faa-owner/N58MM%20LLC)
- Location: [Castle Rock, CO](https://openairdocs.org/faa-place/CO/Castle%20Rock)
- Owner type: Corporation
- Owner's area on the map: 39.3718° N, 104.9146° W: Placed by OpenAirDocs at the center of ZIP code 80109, within about 3 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N58MM
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=58MM
- Page: https://openairdocs.org/deregistered/N58MM-2018-03-30

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 Gates Learjet 35A: https://openairdocs.org/model/gates-learjet-35a.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 K6LR2014F00040](https://openairdocs.org/sdr/K6LR2014F00040), Dec 6, 2013: CABIN PRESSURE. FAILED. DURING A POSITIONING FLIGHT, THERE WAS AN UNCONTROLLED LOSS OF CABIN PRESSURIZATION. THE PILOT MADE AN EMERGENCY DECENT AND DIVERTED FOR MAINTENANCE.
- [SDR 97ZZZX2830](https://openairdocs.org/sdr/97ZZZX2830), May 30, 1997: FRAME. CRACKED. THE LOWER ENTRY DOOR FORWARD STEP FRAME WAS CRACKED IN THE RADIUS OF THE EXTERNAL SKIN FLANGE AT THE HINGE. CAUSE OF CRACK WAS DUE TO IMPROPER RIGGING OF THE AS

## Other aircraft with N58MM

- [Cancelled 1989-05-03](https://openairdocs.org/deregistered/N58MM-1989-05-03): Short Bros. & Harland SD3-30, S/N SH3060. N-number assigned, not yet registered

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.