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Registered aircraft · FAA record as of October 2, 2026
N173

Enstrom F-28A

Valid Michigan

N173 is an Enstrom F-28A, a rotorcraft with a piston engine (a helicopter or multicopter), built in 1974. It has 3 seats. It is registered to co-owned owners in Grosse Ile, Michigan. The registration is valid: it was issued on January 30, 2023 and expires on January 31, 2030. It holds a standard airworthiness certificate for normal, dated June 12, 1974.

Aircraft

Maker
Enstrom
Model
F-28A · all F-28As and related versions
Serial number
218
Type
Rotorcraft
Power
Piston (reciprocating), 1 motor · Lycoming I0360 SER · 180 hp
Seats
3
Year built
1974
Cruising speed
75 mph
Transponder code
A12451 (octal 50222121)

Registration

Status
Valid registration
Certificate issued
January 30, 2023
Expires
January 31, 2030
Last FAA action
January 30, 2023
Airworthiness
Standard · Normal · June 12, 1974
FAA region
Great Lakes
FAA record id
00600791

Owner as the FAA publishes it

Name
Shafer Robert T
Type
Co-owned
Address
9355 Island Dr
Grosse Ile, MI 48138-1426
Co-owners
Shafer Susan A T

Owners can ask the FAA to withhold their name and address from public files. When they do, those fields are blank here as well. How that works.

Documents on file 0

No bills of sale, loans or other documents are indexed against this tail number.

Earlier use of this number 1

1996-05-16Schempp-Hirth K. G NIMBUS II · Triennial registration form was mailed and has not been returned by the Post Office

Records check free · 2 to understand · 3 clear

The public federal record on N173, read the way a buyer, lender or insurer reads it: FAA registration, prior tail numbers keyed on the serial number, reuse of the tail number, recent registry filings, and the NTSB accident record under this and every earlier registration.

CLEARRegistration and identity

Valid registration to Shafer Robert T, a co-owned, certificate issued January 30, 2023, expires January 31, 2030. No fractional interest recorded. [1]

CLEARAirworthiness certificate

Standard certificate for normal, dated June 12, 1974, consistent with the 1974 manufacture year. [1]

CLEARPrior registrations of this airframe

No earlier tail number is recorded against serial 218 for this model in the deregistered file. [2]

ATTENTIONTail number reuse

N173 was previously assigned to 1 other aircraft: Schempp-Hirth K. G NIMBUS II (serial 27, cancelled May 16, 1996). Histories keyed to the tail number alone can mix aircraft up; this check keys on the serial number. [2]

NOTERecent registry documents

No bills of sale, loans or releases have reached the registry in recent weeks. The index covers only recent filings; older liens are in the records file. [3]

ATTENTIONAccident and incident record

1 NTSB record under N173: Accident on May 30, 1993 at Buena Vista, CO: serious injuries, substantial damage. Details below. [4]

PENDINGTitle chain, liens and 337 forms

These live in the FAA aircraft records file (every document ever filed against the aircraft) and, for larger aircraft, the International Registry. Part of the full report.

PENDINGAirworthiness directives and utilization

AD compliance against the logbooks and flight-activity reconciliation are researched layers of the full report.

NTSB records 1

DEN93LA064Accident on May 30, 1993 at Buena Vista, CO: serious injuries, substantial damage.serial on NTSB record: 27

Aircraft on the NTSB record: Schempp-Hirth NIMBUS II · operated under 091

FAILURE TO FOLLOW PROCEDURES AND DIRECTIVES WHEN OPERATING THE FLAPS.

Search the NTSB's CAROL system for DEN93LA064 for the docket and final report. Open CAROL

CLEAR the source was checked and shows no adverse findingATTENTION a fact a buyer or lender should understand, often routineNOTE context onlyPENDING covered by the full report
  1. FAA Releasable Aircraft Database, master file, file of October 2, 2026. registry.faa.gov/
  2. FAA deregistered aircraft file (part of the same download), file of October 2, 2026. registry.faa.gov/
  3. FAA document index: registry documents received in recent weeks, file of October 2, 2026. registry.faa.gov/
  4. NTSB aviation accident database (CAROL), records through August 27, 2026. data.ntsb.gov/carol-main-public/basic-search

This automated check reads the public federal record. Nothing here is a legal opinion, an appraisal or a statement about the aircraft's condition; a CLEAR line is a statement about the searched record, not the aircraft.

Source: FAA Civil Aviation Registry, Releasable Aircraft Database, October 2, 2026. See this record on the FAA site · This record as data