The U.S. aircraft register, updated daily
Engines · piston (reciprocating) · data as of October 5, 2026

Lycoming O-320-B1B

3 aircraft on the U.S. register carry a Lycoming O-320-B1B engine, rated at about 160 horsepower. The Donald M Aldridge/J Hatcher Fe BEARHAWK PATROL is the model most often fitted with it (1 aircraft). The aircraft carrying it were built between 1987 and 2011.

The FAA records engines by code, usually at the level of a series ("O-320 series") rather than the exact variant; this page gathers every FAA code that reads as Lycoming O-320-B1B. FAA spelling: O-320-B1B.

Fitted to model families

Donald M Aldridge/J Hatcher Fe BEARHAWK PATROL1Fabiszak Stephen J RV-9A1Spicer Paul E PITTS S1C1

Donald M Aldridge/J Hatcher Fe BEARHAWK PATROL · Fabiszak Stephen J RV-9A · Spicer Paul E PITTS S1C

Where they are owner's state

California2Utah1

Kind of aircraft

Piston singles3 (100%)

When the aircraft were built by decade

00011119801200012010

What the FAA has certified, ordered and been told about the Lycoming O-320-B1B the component layer

The design is held under 1 type certificate (E-274, held by Lycoming Engines). The FAA has issued 21 airworthiness directives (orders that owners must comply with) that name this engine series.

FAA orders 21 airworthiness directives · newest first

2026-04-082026-04-11 · Engine (Reciprocating) · engine
2024-12-052024-21-02 · Engine (Reciprocating) · engine
2012-03-272012-03-07 · Carburetor · engine
2010-04-192010-07-08 · Turbochargers · engine
2008-10-202008-19-05 · Parallel Valve'' reciprocating engines · engine
2006-01-312005-26-10 · ECi cylinder assemblies. · engine

All orders naming the Lycoming O-320-B1B

Certificates and bulletins

E-274Type certificate held by Lycoming Engines · 60 models listed · revised April 30, 2013

Safety bulletins 6 · advice, not orders

2019-05-02NE-19-08 · Reciprocating Engine Cylinder Section - Lycoming Engines Parallel Valve Cylinders
2016-05-13NE-08-32R1 · Propeller Governor Idler Gear Shaft Set Screw
2014-03-24NE-14-13 · Reciprocating Engine - Cylinder Mounting Studs
2012-11-21NE-13-06 · Pushrod Shroud Spring Retainers, Engine Components Part No. AEL14995, for Lycoming Engines 320,...
2008-09-10NE-06-32R1 · Reciprocating Engine - Crankshaft

Sources: the FAA's type certificate data sheets, airworthiness directives, supplemental type certificates, special conditions and special airworthiness information bulletins (Dynamic Regulatory System), and the FAA's service difficulty reports. A failure report is what an operator or repair station chose to file; the counts show reporting as much as reliability, and larger and commercial fleets report more. How the systems are grouped.

Connections how this engine series links to the rest of the register

Where they are
Airworthiness

These connections as data: /graph/engine/lycoming-o-320-b1b.json · about the eFlight graph.

Aircraft newest certificates first · 3

Tail no.Maker and modelGroupOwner and baseCertificateRegisteredStatus
N774PK Donald M Aldridge/J Hatcher Fe
BEARHAWK PATROL
Fixed-wing, single engine Hcb Media LLC
Los Angeles, California
Experimental 2022-04-29 ValidFAA registration status code V: Valid registration. All codes
N42PS Spicer Paul E
PITTS S1C
Fixed-wing, single engine Individual owner
California
Experimental 2019-03-16 ValidFAA registration status code V: Valid registration. All codes
N345SF Fabiszak Stephen J
RV-9A
Fixed-wing, single engine Individual owner
Utah
Experimental 2008-03-20 ValidFAA registration status code V: Valid registration. All codes

Source: FAA Civil Aviation Registry, Releasable Aircraft Database (the engine reference table and each aircraft's engine code), October 5, 2026. Horsepower and thrust are the FAA's figures for the series, not for a particular aircraft.