Lycoming AEIO-540 series
434 aircraft on the U.S. register carry a Lycoming AEIO-540 series engine, rated at about 260 horsepower. The Extra Flugzeugbau Gmbh EA-300 is the model most often fitted with it (112 aircraft). The aircraft carrying it were built between 1977 and 2026.
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 AEIO-540 series. FAA spelling: AEIO-540 SER.
Fitted to model families
Extra Flugzeugbau Gmbh EA-300 · Aviat Inc PITTS S-2B · Christen Industries Inc PITTS S-2B · Aviat Aircraft Inc S-2 · Pitts Aerobatics S-2 · Aerotek Inc PITTS S-2B · Zivko Aeronautics Inc EDGE 540 · Aviat Aircraft Inc PITTS S-2B · Extra Flugzeugbau EA 300 · Mx Aircraft Co MXS
Where they are owner's state
Kind of aircraft
When the aircraft were built by decade
What the FAA has certified, ordered and been told about the Lycoming AEIO-540 series the component layer
No FAA order in the current files names this engine series. Operators and repair shops have filed 150 failure reports with the FAA since 1995, 4 of them in the last ten years.
Failure reports 150 since · what operators and shops told the FAA
Parts most often reported as the reports name them
Latest reports
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
- Extra Flugzeugbau Gmbh EA-300 112 with this engine series
- Aviat Inc PITTS S-2B 69 with this engine series
- Christen Industries Inc PITTS S-2B 53 with this engine series
- Aviat Aircraft Inc S-2 44 with this engine series
- Pitts Aerobatics S-2 19 with this engine series
- Aerotek Inc PITTS S-2B 13 with this engine series
- Zivko Aeronautics Inc EDGE 540 12 with this engine series
- Aviat Aircraft Inc PITTS S-2B 9 with this engine series
- California 51 of these aircraft
- Texas 35 of these aircraft
- Florida 31 of these aircraft
- Delaware 28 of these aircraft
- Arizona 19 of these aircraft
- Southern Aircraft Consultancy INC Trustee 6 of these aircraft
- Plane Fun INC Tr Trustee 5 of these aircraft
- International Air Services INC Trustee 5 of these aircraft
- Lufthansa Aviation Training USA INC 3 of these aircraft
- Eastern Stearman INC Trustee 3 of these aircraft
- Failure reports on the Lycoming AEIO-540 series 150 reports since 1995
These connections as data: /graph/engine/lycoming-aeio-540-series.json · about the eFlight graph.
Aircraft newest certificates first · 434
| Tail no. | Maker and model | Group | Owner and base | Certificate | Registered | Status |
|---|---|---|---|---|---|---|
| N99JP | Pitts Aerobatics S-2B |
Fixed-wing, single engine | Cp Aviation INC Santa Paula, California |
Standard | 2014-10-16 | ValidFAA registration status code V: Valid registration. All codes |
| N164EX | Extra Flugzeugbau Gmbh EA 300/L |
Fixed-wing, single engine | Drj Management LLC Weston, Connecticut |
Standard | 2014-08-07 | ValidFAA registration status code V: Valid registration. All codes |
| N1YB | Clark James R GLASAIR III SH-3R |
Fixed-wing, single engine | Individual owner Colorado |
Experimental | 2014-07-21 | ValidFAA registration status code V: Valid registration. All codes |
| N9614 | Mxr Technologies Inc MXS |
Fixed-wing, single engine | Individual owner Kentucky |
Experimental | 2014-06-10 | ValidFAA registration status code V: Valid registration. All codes |
| N34PZ | Aerotek Inc PITTS S-2B |
Fixed-wing, single engine | Pitts S2-B Aero LLC Newport Beach, California |
Standard | 2014-05-22 | ValidFAA registration status code V: Valid registration. All codes |
| N260PG | Aviat Inc PITTS S-2B |
Fixed-wing, single engine | Individual owner Utah |
Standard | 2014-05-16 | ValidFAA registration status code V: Valid registration. All codes |
| N4444M | Pzl-Mielec M26 |
Fixed-wing, single engine | Turbine Conversions LTD Nunica, Michigan |
Standard | 2014-05-07 | ValidFAA registration status code V: Valid registration. All codes |
| N6025L | Pitts Aerobatics S-2B |
Fixed-wing, single engine | Individual owner California |
Standard | 2014-03-26 | ValidFAA registration status code V: Valid registration. All codes |
| N92WS | Aviat Inc PITTS S-2B |
Fixed-wing, single engine | Flyboy 71 LLC Kalamazoo, Michigan |
Standard | 2013-10-22 | ValidFAA registration status code V: Valid registration. All codes |
| N136SM | Extra Flugzeugbau Gmbh EA 300/L |
Fixed-wing, single engine | Martens Aerosports LLC Garden City, New York |
Standard | 2013-08-19 | ValidFAA registration status code V: Valid registration. All codes |
| N260SL | Christen Industries Inc PITTS S-2B |
Fixed-wing, single engine | Aeroquest LLC Harold, Kentucky |
Standard | 2013-08-16 | ValidFAA registration status code V: Valid registration. All codes |
| N6081U | Aviat Inc PITTS S-2B |
Fixed-wing, single engine | Individual owner Florida |
Standard | 2013-06-20 | ValidFAA registration status code V: Valid registration. All codes |
| N41EX | Extra Flugzeugbau Gmbh EA 300/L |
Fixed-wing, single engine | Individual owner Minnesota |
Standard | 2013-05-31 | ValidFAA registration status code V: Valid registration. All codes |
| N104MX | Mx Aircraft Llc MXS |
Fixed-wing, single engine | Individual owner Virginia |
Experimental | 2013-05-14 | ValidFAA registration status code V: Valid registration. All codes |
| N25CH | Pitts Aerobatics S-2B |
Fixed-wing, single engine | Planes of Fame Air Museum Chino, California |
Experimental | 2013-04-16 | ValidFAA registration status code V: Valid registration. All codes |
| N85TG | Watkins Thomas G Iii GLASAIR III |
Fixed-wing, single engine | Williams Field LLC Gig Harbor, Washington |
Experimental | 2013-02-12 | ValidFAA registration status code V: Valid registration. All codes |
| N50ZL | Moravan ZLIN Z50 LA |
Fixed-wing, single engine | Individual owner California |
Experimental | 2012-11-15 | ValidFAA registration status code V: Valid registration. All codes |
| N800XT | Mxr Technologies Inc MXS |
Fixed-wing, single engine | Connor Air LTD Miamisburg, Ohio |
Experimental | 2012-10-26 | ValidFAA registration status code V: Valid registration. All codes |
| N43BT | Christen Industries Inc PITTS S-2B |
Fixed-wing, single engine | Individual owner Alaska |
Standard | 2012-09-26 | ValidFAA registration status code V: Valid registration. All codes |
| N303UT | Extra Flugzeugbau Gmbh EA 300/L |
Fixed-wing, single engine | Aviation Performance Solutions LLC Mesa, Arizona |
Standard | 2012-07-26 | ValidFAA registration status code V: Valid registration. All codes |
| N808JP | Aviat Inc PITTS S-2B |
Fixed-wing, single engine | Individual owner Oregon |
Standard | 2012-07-17 | ValidFAA registration status code V: Valid registration. All codes |
| N160FU | Aerotek Inc PITTS S-2B |
Fixed-wing, single engine | Extreme Attitude Recovery & Aerobatics LLC Cincinnati, Ohio |
Standard | 2012-06-20 | ValidFAA registration status code V: Valid registration. All codes |
| N540RB | Extra Flugzeugbau Gmbh EA-300 |
Fixed-wing, single engine | Individual owner Texas |
Experimental | 2012-05-07 | ValidFAA registration status code V: Valid registration. All codes |
| N5311J | Aerotek Inc PITTS S-2B |
Fixed-wing, single engine | Individual owner Delaware |
Standard | 2012-04-23 | ValidFAA registration status code V: Valid registration. All codes |
| N12QW | Pitts Aerobatics S-2B |
Fixed-wing, single engine | All Aviation LLC Tucson, Arizona |
Standard | 2012-04-12 | ValidFAA registration status code V: Valid registration. All codes |
| N892M | Mortensen Geryl L S-301 |
Fixed-wing, single engine | Plyler Aviation LP Sherman, Texas |
Experimental | 2012-04-11 | ValidFAA registration status code V: Valid registration. All codes |
| N7XT | Extra Flugzeugbau Gmbh EA 300/L |
Fixed-wing, single engine | Co-owned owner California |
Standard | 2012-03-06 | ValidFAA registration status code V: Valid registration. All codes |
| N13KT | Aviat Inc PITTS S-2B |
Fixed-wing, single engine | Individual owner Texas |
Standard | 2012-02-27 | ValidFAA registration status code V: Valid registration. All codes |
| N54LR | Extra Flugzeugbau Gmbh EA-300 |
Fixed-wing, single engine | Pterodactyl INC Wilmington, Delaware |
Standard | 2012-01-31 | ValidFAA registration status code V: Valid registration. All codes |
| N992GL | Extra Flugzeugbau Gmbh EA 300/L |
Fixed-wing, single engine | Co-owned owner New Jersey |
Standard | 2012-01-04 | ValidFAA registration status code V: Valid registration. All codes |
| N60827 | Aviat Inc PITTS S-2B |
Fixed-wing, single engine | Individual owner New York |
Standard | 2011-12-23 | ValidFAA registration status code V: Valid registration. All codes |
| N912ST | Aviat Inc PITTS S-2B |
Fixed-wing, single engine | Aircraft Guaranty CORP Trustee Oklahoma City, Oklahoma |
Standard | 2011-11-02 | ValidFAA registration status code V: Valid registration. All codes |
| N694ED | Extra Flugzeugbau Gmbh EA-300 |
Fixed-wing, single engine | Co-owned owner California |
Standard | 2011-10-04 | ValidFAA registration status code V: Valid registration. All codes |
| N260SJ | Christen Industries Inc PITTS S-2B |
Fixed-wing, single engine | Individual owner Florida |
Standard | 2011-09-20 | ValidFAA registration status code V: Valid registration. All codes |
| N17PW | Christen Industries Inc PITTS S-2B |
Fixed-wing, single engine | Individual owner Washington |
Standard | 2011-08-26 | ValidFAA registration status code V: Valid registration. All codes |
| N540SS | Skip Stewart PITTS S-2S |
Fixed-wing, single engine | Code Supplies INC Rossville, Tennessee |
Experimental | 2011-07-20 | ValidFAA registration status code V: Valid registration. All codes |
| N53NL | Extra Flugzeugbau Gmbh EA 300/L |
Fixed-wing, single engine | Co-owned owner Massachusetts |
Standard | 2011-06-22 | ValidFAA registration status code V: Valid registration. All codes |
| N48EW | Aviat Inc PITTS S-2B |
Fixed-wing, single engine | Individual owner Texas |
Standard | 2011-04-16 | ValidFAA registration status code V: Valid registration. All codes |
| N910SH | Roth Scott F-1 ROCKET |
Fixed-wing, single engine | F-1 Aviation LLC Port Orange, Florida |
Experimental | 2011-03-17 | ValidFAA registration status code V: Valid registration. All codes |
| N535AZ | Pzl-Mielec M2601 |
Fixed-wing, single engine | Buzz Rickson Aviation LLC Wilmington, Delaware |
Standard | 2010-11-23 | ValidFAA registration status code V: Valid registration. All codes |
| N8XT | Extra Flugzeugbau Gmbh EA 300/L |
Fixed-wing, single engine | Individual owner Montana |
Standard | 2010-08-03 | ValidFAA registration status code V: Valid registration. All codes |
| N58DE | Aviat Inc PITTS S-2B |
Fixed-wing, single engine | Individual owner Texas |
Standard | 2009-11-06 | ValidFAA registration status code V: Valid registration. All codes |
| N36MT | Aviat Inc PITTS S-2B |
Fixed-wing, single engine | Co-owned owner Maryland |
Standard | 2009-04-03 | ValidFAA registration status code V: Valid registration. All codes |
| N9H | Christen Industries Inc PITTS S-2B |
Fixed-wing, single engine | Co-owned owner Kansas |
Standard | 2009-03-19 | ValidFAA registration status code V: Valid registration. All codes |
| N6082C | Christen Industries Inc PITTS S-2B |
Fixed-wing, single engine | Individual owner Tennessee |
Standard | 2009-03-11 | ValidFAA registration status code V: Valid registration. All codes |
| N189PR | Christen Industries Inc PITTS S-2B |
Fixed-wing, single engine | Individual owner Texas |
Standard | 2009-02-12 | ValidFAA registration status code V: Valid registration. All codes |
| N117CL | Christen Industries Inc PITTS S-2B |
Fixed-wing, single engine | Co-owned owner Minnesota |
Standard | 2009-02-05 | ValidFAA registration status code V: Valid registration. All codes |
| N519ZB | Christen Industries Inc PITTS S-2B |
Fixed-wing, single engine | Pittsbird LLC Malvern, Ohio |
Standard | 2008-12-08 | ValidFAA registration status code V: Valid registration. All codes |
| N51GF | Christen Industries Inc PITTS S-2B |
Fixed-wing, single engine | North Valley Aircraft INC Valley City, North Dakota |
Standard | 2008-10-22 | ValidFAA registration status code V: Valid registration. All codes |
| N125EX | Extra Flugzeugbau Gmbh EA 300/L |
Fixed-wing, single engine | Individual owner Iowa |
Standard | 2008-07-09 | ValidFAA registration status code V: Valid registration. All codes |
| N46EX | Extra Flugzeugbau EA 300/S |
Fixed-wing, single engine | Withheld at owner's request | Experimental | 2007-11-14 | ValidFAA registration status code V: Valid registration. All codes |
| N148TA | Aviat Aircraft Inc S-2C |
Fixed-wing, single engine | Business Revenue CORP Newton, Iowa |
Standard | 2007-09-25 | ValidFAA registration status code V: Valid registration. All codes |
| N49LH | Aviat Inc PITTS S-2B |
Fixed-wing, single engine | Texas Pitts Partners LLC Plano, Texas |
Standard | 2007-06-13 | ValidFAA registration status code V: Valid registration. All codes |
| N199X | Extra Flugzeugbau Gmbh EA 300/L |
Fixed-wing, single engine | Individual owner Wyoming |
Standard | 2007-05-08 | ValidFAA registration status code V: Valid registration. All codes |
| N6087E | Aviat Inc PITTS S-2B |
Fixed-wing, single engine | Individual owner Connecticut |
Standard | 2007-04-26 | ValidFAA registration status code V: Valid registration. All codes |
| N380BF | Aviat Aircraft Inc S-2C |
Fixed-wing, single engine | Individual owner Pennsylvania |
Standard | 2007-01-22 | ValidFAA registration status code V: Valid registration. All codes |
| N23EX | Extra Flugzeugbau Gmbh EA 300/L |
Fixed-wing, single engine | Individual owner Louisiana |
Standard | 2006-11-29 | ValidFAA registration status code V: Valid registration. All codes |
| N161FC | Extra Flugzeugbau Gmbh EA 300/L |
Fixed-wing, single engine | Aps Asset Management INC Mesa, Arizona |
Standard | 2006-11-27 | ValidFAA registration status code V: Valid registration. All codes |
| N477SF | Extra Flugzeugbau Gmbh EA 300/L |
Fixed-wing, single engine | Aps Asset Management INC Mesa, Arizona |
Standard | 2006-11-22 | ValidFAA registration status code V: Valid registration. All codes |
| N301DE | Extra Flugzeugbau Gmbh EA 300/L |
Fixed-wing, single engine | Tentacle CORP Walnut Creek, California |
Standard | 2006-10-13 | ValidFAA registration status code V: Valid registration. All codes |
| N110PS | Aviat Inc PITTS S-2B |
Fixed-wing, single engine | Individual owner Tennessee |
Standard | 2006-09-21 | ValidFAA registration status code V: Valid registration. All codes |
| N41CV | Extra Flugzeugbau Gmbh EA 300/L |
Fixed-wing, single engine | Individual owner Oregon |
Standard | 2006-07-03 | ValidFAA registration status code V: Valid registration. All codes |
| N207LH | Extra Flugzeugbau Gmbh EA 300/L |
Fixed-wing, single engine | Snaproll INC Wilmington, Delaware |
Standard | 2006-04-24 | ValidFAA registration status code V: Valid registration. All codes |
| N540F | Christen Industries Inc PITTS S-2B |
Fixed-wing, single engine | Tail Wheel Solutions LLC Wilmington, Delaware |
Standard | 2006-04-05 | ValidFAA registration status code V: Valid registration. All codes |
| N1903N | Cascade Aircraft Development CHANUTE |
Fixed-wing, single engine | Individual owner Wyoming |
Experimental | 2006-03-06 | ValidFAA registration status code V: Valid registration. All codes |
| N25AP | Extra Flugzeugbau Gmbh EA 300/L |
Fixed-wing, single engine | Individual owner Washington |
Standard | 2006-01-06 | ValidFAA registration status code V: Valid registration. All codes |
| N260L | Christen Industries Inc PITTS S-2B |
Fixed-wing, single engine | Montana Wingnuts LLC Kalispell, Montana |
Standard | 2005-08-10 | ValidFAA registration status code V: Valid registration. All codes |
| N199RG | Extra Flugzeugbau Gmbh EA 300/L |
Fixed-wing, single engine | Bell Aviation INC Wilmington, Delaware |
Standard | 2005-07-07 | ValidFAA registration status code V: Valid registration. All codes |
| N555RL | Aviat Inc PITTS S-2B |
Fixed-wing, single engine | Individual owner Florida |
Standard | 2005-06-14 | ValidFAA registration status code V: Valid registration. All codes |
| N659DM | Avions Mudry Cie CAP 232 |
Fixed-wing, single engine | Ftr Esc LLC San Antonio, Texas |
Experimental | 2005-04-06 | ValidFAA registration status code V: Valid registration. All codes |
| N71A | Aviat Inc PITTS S-2B |
Fixed-wing, single engine | H & J Airplane LLC Wilmington, Delaware |
Standard | 2005-03-16 | ValidFAA registration status code V: Valid registration. All codes |
| N842P | Extra Flugzeugbau Gmbh EA 300/L |
Fixed-wing, single engine | Individual owner Colorado |
Standard | 2004-04-29 | ValidFAA registration status code V: Valid registration. All codes |
| N160DS | Salcedo Daniel R PITTS S-1-11 |
Fixed-wing, single engine | Co-owned owner Florida |
Experimental | 2004-04-08 | ValidFAA registration status code V: Valid registration. All codes |
| N42DK | Karich Donald LANCAIR LEGACY |
Fixed-wing, single engine | Ultimate Answer INC Surfside, California |
Experimental | 2004-03-24 | ValidFAA registration status code V: Valid registration. All codes |
| N62TH | Extra Flugzeugbau Gmbh EA 300/L |
Fixed-wing, single engine | A H Aero Services LLC Hiber City, Utah |
Standard | 2003-12-15 | ValidFAA registration status code V: Valid registration. All codes |
| N315DC | Flint Cristopher FREEBIRD 300 |
Fixed-wing, single engine | Johnstone INC Wilsonville, Oregon |
Experimental | 2003-12-12 | ValidFAA registration status code V: Valid registration. All codes |
| N34EX | Extra Flugzeugbau Gmbh EA 300/L |
Fixed-wing, single engine | Individual owner California |
Standard | 2003-12-03 | ValidFAA registration status code V: Valid registration. All codes |
| N59KK | Aviat Inc PITTS S-2B |
Fixed-wing, single engine | White Pitts INC Wilmington, Delaware |
Standard | 2003-11-08 | ValidFAA registration status code V: Valid registration. All codes |
| N289PR | Christen Industries Inc PITTS S-2B |
Fixed-wing, single engine | Individual owner North Carolina |
Standard | 2003-09-16 | ValidFAA registration status code V: Valid registration. All codes |
| N278SJ | Extra Flugzeugbau Gmbh EA 300/L |
Fixed-wing, single engine | Individual owner Oregon |
Standard | 2002-09-06 | ValidFAA registration status code V: Valid registration. All codes |
| N320PS | Aviat Aircraft Inc PITTS S-2B |
Fixed-wing, single engine | Individual owner North Carolina |
Standard | 2002-08-05 | ValidFAA registration status code V: Valid registration. All codes |
| N5310S | Aerotek Inc PITTS S-2B |
Fixed-wing, single engine | Individual owner Colorado |
Standard | 2002-07-24 | ValidFAA registration status code V: Valid registration. All codes |
| N37SG | Aviat Aircraft Inc S-2C |
Fixed-wing, single engine | Individual owner Missouri |
Standard | 2001-09-26 | ValidFAA registration status code V: Valid registration. All codes |
| N39GP | Extra Flugzeugbau Gmbh EA 300/L |
Fixed-wing, single engine | Extra 2 INC Newark, Delaware |
Standard | 2001-09-18 | ValidFAA registration status code V: Valid registration. All codes |
| N271MW | Extra Flugzeugbau Gmbh EA 300/L |
Fixed-wing, single engine | Individual owner Delaware |
Standard | 2001-06-19 | ValidFAA registration status code V: Valid registration. All codes |
| N55NL | Extra Flugzeugbau Gmbh EA 300/L |
Fixed-wing, single engine | Extra Air LLC Port Orange, Florida |
Standard | 2001-06-18 | ValidFAA registration status code V: Valid registration. All codes |
| N14LP | Aviat Inc PITTS S-2B |
Fixed-wing, single engine | Individual owner Idaho |
Standard | 2001-06-16 | ValidFAA registration status code V: Valid registration. All codes |
| N148F | Aviat Aircraft Inc S-2C |
Fixed-wing, single engine | Individual owner Minnesota |
Standard | 2001-04-04 | ValidFAA registration status code V: Valid registration. All codes |
| N913ST | Aviat Inc PITTS S-2B |
Fixed-wing, single engine | Individual owner Michigan |
Standard | 2000-12-05 | ValidFAA registration status code V: Valid registration. All codes |
| N161PS | Aviat Inc PITTS S-2B |
Fixed-wing, single engine | Individual owner Tennessee |
Standard | 2000-10-19 | ValidFAA registration status code V: Valid registration. All codes |
| N79D | Aviat Inc PITTS S-2B |
Fixed-wing, single engine | Individual owner New Jersey |
Standard | 2000-10-02 | ValidFAA registration status code V: Valid registration. All codes |
| N555EX | Extra Flugzeugbau Gmbh EA 300/L |
Fixed-wing, single engine | Individual owner Georgia |
Standard | 2000-08-04 | ValidFAA registration status code V: Valid registration. All codes |
| N114PS | Aviat Aircraft Inc S-2C |
Fixed-wing, single engine | Pitts S2B LLC Salinas, California |
Standard | 2000-07-21 | ValidFAA registration status code V: Valid registration. All codes |
| N232DD | Cap CAP 232 |
Fixed-wing, single engine | Individual owner Texas |
Experimental | 2000-07-21 | ValidFAA registration status code V: Valid registration. All codes |
| N114RM | Aviat Aircraft Inc S-2C |
Fixed-wing, single engine | Immelman Leasing Company LLC Lompoc, California |
Standard | 2000-06-22 | ValidFAA registration status code V: Valid registration. All codes |
| N142PS | Aviat Aircraft Inc S-2C |
Fixed-wing, single engine | Sidney Aviation LLC Sidney, Nebraska |
Standard | 2000-04-04 | ValidFAA registration status code V: Valid registration. All codes |
| N224TJ | Aviat Inc PITTS S-2B |
Fixed-wing, single engine | Individual owner Georgia |
Standard | 1999-12-28 | ValidFAA registration status code V: Valid registration. All codes |
| N13EX | Extra Flugzeugbau Gmbh EA 300/L |
Fixed-wing, single engine | Pitts Capital of Nevada INC Las Vegas, Nevada |
Standard | 1999-09-30 | ValidFAA registration status code V: Valid registration. All codes |
| N232X | Akrotech CAP 232 |
Fixed-wing, single engine | Individual owner Texas |
Experimental | 1999-04-19 | ValidFAA registration status code V: Valid registration. All codes |
| N434DM | Aviat Inc PITTS S-2B |
Fixed-wing, single engine | Individual owner Texas |
Standard | 1999-02-26 | 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.
