Single-engine piston

N21BW

Homebuilt PITTS S1-C

Registered No accidents on file
Built
—
Serial
HB001
Class
Single-engine piston
Engines
Lycoming O-320 series
Status
Current as of October 2026
Registered owner
Quonset Technology LLC Dba + 1 co-owner (LLC)
Based
North Kingstown, RI
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Registration record

N21BW on the FAA register

Type
Homebuilt PITTS S1-C
Serial
HB001
Engines
Lycoming O-320 series
Registered owner
Quonset Technology LLC Dba + 1 co-owner
North Kingstown, RI
Certificate issued
2017-05-09
Airworthiness date
1986-10-31
Registration expires
2027-05-31
Airworthiness class
Experimental · amateur-built
Mode S (hex)
A1B757
Mode S (octal)
50333527
Seats (type)
1
Weight class
up to 12,499 lb
Status
Current as of October 2026
Registry history

Timeline

  • 2027-05-31
    Registration expires (renewal due).
  • 2017-05-09
    Certificate of registration issued as N21BW to the current registrant.
  • 2013-04-10
    N21BW previously assigned to a Beechcraft 58 Baron (s/n TH-36); cancelled.
  • 1986-10-31
    Airworthiness date on the current FAA record (experimental category (amateur-built)).
Overview

About N21BW

N21BW is a Homebuilt PITTS S1-C, serial number HB001. The FAA register lists Quonset Technology LLC Dba + 1 co-owner as the registrant in North Kingstown, Rhode Island. The current certificate of registration was issued on May 9, 2017 and expires on May 31, 2027.

The FAA aircraft reference file describes the type as a single-engine piston, one Lycoming O-320 series engine and 1 seats. Its airworthiness certificate is experimental category (amateur-built), dated October 31, 1986.

No NTSB accident or incident reports and no FAA preliminary notices are on file for this airframe as N21BW. 2 earlier records involve a different aircraft that carried the same N-number.

Safety record

Accident & incident history

1992-12-31 Accident · Ft Collins, CO Damage: Substantial NTSB · DEN93LA020
Reported aircraft: Beechcraft 58 — a different aircraft that carried the N21BW registration before this airframe.
Probable cause: FAILURE BY THE PILOT TO FOLLOW IFR PROCEDURES IN NOT EXECUTING A MISSED APPROACH WHEN HE ARRIVED AT THE RUNWAY THRESHOLD WITH IMPROPER ALIGNMENT AND IMPROPER DESCENT RATE FOR LANDING. A FACTOR WAS: MARGINAL WEATHER CONDITIONS.
1977-08-05 Accident · Centerville,Al, 01 Damage: Substantial NTSB · 3 2373
Reported aircraft: Beechcraft 58 — a different aircraft that carried the N21BW registration before this airframe.

Sources: NTSB aviation accident database and CAROL case system, FAA preliminary accident & incident notices. Search accident records

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Browse: Aircraft registered in Rhode Island· Registry by state· FAA registry stats

Data: FAA Aircraft Registry (October 2026), including deregistered aircraft; NTSB and FAA accident data; fyiAero listing history. Individual owners' names are shown to signed-in users and street addresses are never shown. Type figures are published specifications, not this aircraft's.