| Tail Number / N-Number | N555MS |
| Manufacturer | MD HELICOPTERS INC |
| Model | 600N |
| Manufacturer's Serial Number | RN079 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 4 seats |
| Weight Class | CLASS 2 (12,500 - 19,999 pounds gross take off weight) |
| Engine Manufacturer | ROLLS-ROYC |
| Engine Model | 250-C47M |
| Engine Type | Turbo-shaft |
| Number of Engines | 1 engine |
| Horsepower | 650 hp (485 kW) |
| Type of Registrant | Corporation |
| Owner Name | WAISTCAT AVIATION INC |
| Street | 406 S 12TH ST 1717 |
| City | MCALLEN |
| State | TX |
| Zip Code | 78501 |
| Region | Southwestern |
| County | Hidalgo County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2016-07-28 |
| Certificate Issue Date | 2022-09-07 |
| Last Action Date | 2022-09-07 |
| Expiration Date | 2029-09-30 |
| Status | Valid Registration |
| Mode S Code | 51611442 |
| Mode S Code Hex | A71322 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N555MS.
| Tail Number / N-Number | N555MS |
| Manufacturer | EUROCOPTER |
| Model | EC120B |
| Year Built | 2008 |
| Manufacturer's Serial Number | 1580 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 5 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | TURBOMECA |
| Engine Model | ARRIUS 2F |
| Engine Type | Turbo-shaft |
| Number of Engines | 1 engine |
| Horsepower | 432 hp (322 kW) |
| Type of Registrant | Corporation |
| Owner Name | AIRCRAFT GUARANTY HOLDINGS & TRUST LLC TRUSTEE |
| Street | PO BOX 2549 |
| City | ONALASKA |
| State | TX |
| Zip Code | 77360-2549 |
| County | Hidalgo County |
| Country | US |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2009-01-23 |
| Certificate Issue Date | 2009-02-05 |
| Last Action Date | 2009-11-12 |
| Last Status | Valid Registration |
| Cancellation Date | 2011-03-14 |
| Exported To | GERMANY |