Continental O-470 series
12,781 aircraft on the U.S. register carry a Continental O-470 series engine, rated at about 230 horsepower. The Cessna 182 Skylane is the model most often fitted with it (9,369 aircraft). The aircraft carrying it were built between 1951 and 2023.
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 Continental O-470 series. FAA spelling: O-470 SERIES.
Fitted to model families
Cessna 182 Skylane9,369Cessna 180 Skywagon2,362Beechcraft H35204Cessna 310150Cessna 305148Beechcraft A45124Bellanca 1446Beechcraft D-4541Beechcraft 95 Travel Air and Baron 5534Beechcraft T-3430Cessna 18827Cessna L-1923
Model families, as a table
Cessna 182 Skylane · Cessna 180 Skywagon · Beechcraft H35 · Cessna 310 · Cessna 305 · Beechcraft A45 · Bellanca 14 · Beechcraft D-45 · Beechcraft 95 Travel Air and Baron 55 · Beechcraft T-34
Where they are owner's state
Kind of aircraft
By kind, as a table
| aircraft | share | |
|---|---|---|
| Piston singles | 12,580 | 98% |
| Piston twins | 201 | 2% |
What the FAA has certified, ordered and been told about the Continental O-470 series the component layer
The design is held under 3 type certificates. The FAA has issued 23 airworthiness directives (orders that owners must comply with) that name this engine series. Operators and repair shops have filed 148 failure reports with the FAA since 1995, 7 of them in the last ten years.
FAA orders 23 airworthiness directives · newest first
2023-10-262023-17-04 · Reciprocating Engine Oil System · engine
2023-03-152023-05-16 · Reciprocating Engine Power Section · engine
2023-02-232023-04-08 · Reciprocating Engine Power Section · engine
2023-02-172023-02-12 · Engine Air Intake System · engine
2022-08-152022-16-03 · Engine (RECIPROCATING) · engine
2022-03-292022-04-04 · Reciprocating Engine Oil System · engine
Failure reports 148 since · what operators and shops told the FAA
Failure reports by year, as a table
| reports | |
|---|---|
| 95 | 5 |
| 96 | 4 |
| 97 | 1 |
| 99 | 2 |
| 00 | 3 |
| 01 | 15 |
| 02 | 22 |
| 03 | 16 |
| 04 | 16 |
| 05 | 6 |
| 06 | 6 |
| 07 | 9 |
| 08 | 8 |
| 09 | 8 |
| 10 | 8 |
| 12 | 4 |
| 13 | 7 |
| 14 | 1 |
| 17 | 4 |
| 18 | 1 |
| 20 | 1 |
| 26 | 1 |
Parts most often reported as the reports name them
Bulkhead18Cylinder9Skin5Line4Support Bracket4Control Arm3Elt3Fitting3Rib3Roll Pin3
Parts most reported, as a table
| reports | |
|---|---|
| Bulkhead | 18 |
| Cylinder | 9 |
| Skin | 5 |
| Line | 4 |
| Support Bracket | 4 |
| Control Arm | 3 |
| Elt | 3 |
| Fitting | 3 |
| Rib | 3 |
| Roll Pin | 3 |
Latest reports
2026-08-27Cylinder: separated
2020-04-13Bracket: broken
2018-09-05Gear: chipped
2017-08-30Relay: shorted
2017-08-11Hub: cracked
Certificates and bulletins
E-273Type certificate held by Continental Aerospace Technologies, INC. · 21 models listed · revised September 19, 2022
E-269Type certificate held by Continental Aerospace Technologies, INC. · 8 models listed · revised September 19, 2022
E-281Type certificate held by Continental Aerospace Technologies, INC. · 2 models listed · revised May 4, 2020
Safety bulletins 4 · advice, not orders
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
Fitted to
- Cessna 182 Skylane 9,369 with this engine series
- Cessna 180 Skywagon 2,362 with this engine series
- Beechcraft H35 204 with this engine series
- Cessna 310 150 with this engine series
- Cessna 305 148 with this engine series
- Beechcraft A45 124 with this engine series
- Bellanca 14 46 with this engine series
- Beechcraft D-45 41 with this engine series
Where they are
- California 1,196 of these aircraft
- Texas 1,163 of these aircraft
- Alaska 861 of these aircraft
- Washington 673 of these aircraft
- Florida 552 of these aircraft
Biggest operators
- Sutton Aircraft Salvage LLC 26 of these aircraft
- Civil Air Patrol INC 16 of these aircraft
- Kcsi Aerial Patrol INC 15 of these aircraft
- Bas Part Sales LLC 13 of these aircraft
- Energy Transfer Aviation LLC 12 of these aircraft
Airworthiness
- FAA orders naming the Continental O-470 series 23 airworthiness directives
- Failure reports on the Continental O-470 series 148 reports since 1995
Analytics
The whole map of how records connect · these connections as data: /graph/engine/continental-o-470-series.json.
Aircraft newest certificates first · 12,781
| Tail no. | Maker and model | Group | Owner and base | Certificate | Registered | Status |
|---|---|---|---|---|---|---|
| N674M | Cessna 180B |
Fixed-wing, single engine | Co-owned owner Alaska |
Standard | 2013-07-16 | ValidFAA registration status code V: Valid registration. All codes |
| N70560 | Cessna 182L |
Fixed-wing, single engine | Blue Sky Flyers LLC Toccoa, Georgia |
Standard | 2013-07-16 | ValidFAA registration status code V: Valid registration. All codes |
| N735YC | Cessna 182Q |
Fixed-wing, single engine | Individual owner New York |
Standard | 2013-07-16 | ValidFAA registration status code V: Valid registration. All codes |
| N78GM | Cessna 310 |
Fixed-wing, multi-engine | Co-owned owner Colorado |
Standard | 2013-07-16 | ValidFAA registration status code V: Valid registration. All codes |
| N71354 | Cessna 182M |
Fixed-wing, single engine | Willis Enterprises Enterprise, Oregon |
Standard | 2013-07-15 | ValidFAA registration status code V: Valid registration. All codes |
| N1139M | Cessna 182P |
Fixed-wing, single engine | Individual owner Tennessee |
Standard | 2013-07-12 | ValidFAA registration status code V: Valid registration. All codes |
| N65070 | Cessna Ector 305A |
Fixed-wing, single engine | Honolulu Soaring Club INC Waipahu, Hawaii |
Standard | 2013-07-11 | ValidFAA registration status code V: Valid registration. All codes |
| N9311X | Cessna 182E |
Fixed-wing, single engine | Co-owned owner Kansas |
Standard | 2013-07-09 | ValidFAA registration status code V: Valid registration. All codes |
| N5141E | Cessna 180B |
Fixed-wing, single engine | Skywagon 41 Echo LLC Pine, Colorado |
Restricted | 2013-07-08 | ValidFAA registration status code V: Valid registration. All codes |
| N9141X | Cessna 182D |
Fixed-wing, single engine | Individual owner Texas |
Standard | 2013-07-02 | ValidFAA registration status code V: Valid registration. All codes |
| N3880C | Cessna 180 |
Fixed-wing, single engine | Individual owner Oregon |
Standard | 2013-07-01 | ValidFAA registration status code V: Valid registration. All codes |
| N759BY | Cessna 182Q |
Fixed-wing, single engine | Almyra Aero LLC Stuttgart, Arkansas |
Standard | 2013-07-01 | ValidFAA registration status code V: Valid registration. All codes |
| N3523U | Cessna 182F |
Fixed-wing, single engine | Co-owned owner Iowa |
Standard | 2013-06-28 | ValidFAA registration status code V: Valid registration. All codes |
| N9540X | Cessna 182R |
Fixed-wing, single engine | Whitetop Air LLC Wilmington, Delaware |
Standard | 2013-06-28 | ValidFAA registration status code V: Valid registration. All codes |
| N1418 | Meek David S SUN DEVIL |
Fixed-wing, single engine | Individual owner Kansas |
Experimental | 2013-06-27 | ValidFAA registration status code V: Valid registration. All codes |
| N91680 | Cessna 182M |
Fixed-wing, single engine | Kay Scott Aviation Insurance INC Reno, Nevada |
Standard | 2013-06-24 | ValidFAA registration status code V: Valid registration. All codes |
| N2298G | Cessna 182B |
Fixed-wing, single engine | Co-owned owner California |
Standard | 2013-06-21 | ValidFAA registration status code V: Valid registration. All codes |
| N4679A | Cessna 180 |
Fixed-wing, single engine | Flying Bulldogs LLC Joplin, Missouri |
Standard | 2013-06-21 | ValidFAA registration status code V: Valid registration. All codes |
| N70809 | Cessna 182M |
Fixed-wing, single engine | Individual owner Montana |
Restricted | 2013-06-21 | ValidFAA registration status code V: Valid registration. All codes |
| N7254N | Cessna 182P |
Fixed-wing, single engine | Choice Aviation LLC Hamilton, Montana |
Standard | 2013-06-21 | ValidFAA registration status code V: Valid registration. All codes |
| N7771A | Cessna 180A |
Fixed-wing, single engine | Individual owner Alaska |
Restricted | 2013-06-21 | ValidFAA registration status code V: Valid registration. All codes |
| N305F | Cessna 182F |
Fixed-wing, single engine | Stockdale Aviation LLC Crawford, Colorado |
Standard | 2013-06-20 | ValidFAA registration status code V: Valid registration. All codes |
| N9422H | Cessna 182R |
Fixed-wing, single engine | Fort Smith Flying Club INC Fort Smith, Arkansas |
Standard | 2013-06-20 | ValidFAA registration status code V: Valid registration. All codes |
| N5257N | Cessna 182Q |
Fixed-wing, single engine | Amanda Air INC Talladega, Alabama |
Standard | 2013-06-18 | ValidFAA registration status code V: Valid registration. All codes |
| N612ES | Cessna 182P |
Fixed-wing, single engine | Individual owner Washington |
Standard | 2013-06-12 | ValidFAA registration status code V: Valid registration. All codes |
| N7396N | Cessna 182P |
Fixed-wing, single engine | Ad Astra Aviation Services LLC Saline, Michigan |
Standard | 2013-06-12 | ValidFAA registration status code V: Valid registration. All codes |
| N3056Y | Cessna 182E |
Fixed-wing, single engine | Individual owner California |
Standard | 2013-06-11 | ValidFAA registration status code V: Valid registration. All codes |
| N9332T | Cessna 180C |
Fixed-wing, single engine | Miller Aircraft Services INC Crookston, Minnesota |
Standard | 2013-06-11 | ValidFAA registration status code V: Valid registration. All codes |
| N21257 | Cessna 182P |
Fixed-wing, single engine | Stc Aviation Services LLC Logan, Utah |
Standard | 2013-06-10 | ValidFAA registration status code V: Valid registration. All codes |
| N4906D | Cessna 182A |
Fixed-wing, single engine | Individual owner Alaska |
Standard | 2013-06-10 | ValidFAA registration status code V: Valid registration. All codes |
| N6045J | Cessna 182P |
Fixed-wing, single engine | Individual owner Arizona |
Standard | 2013-06-10 | ValidFAA registration status code V: Valid registration. All codes |
| N3277Y | Cessna 182E |
Fixed-wing, single engine | Lapinsky Richard G Los Lunas, New Mexico |
Standard | 2013-06-05 | ValidFAA registration status code V: Valid registration. All codes |
| N3426Y | Cessna 180H |
Fixed-wing, single engine | Machnik Todd J Old Lyme, Connecticut |
Standard | 2013-06-04 | ValidFAA registration status code V: Valid registration. All codes |
| N418SA | Cessna 182Q |
Fixed-wing, single engine | Summit Aviation INC Middletown, Delaware |
Standard | 2013-05-30 | ValidFAA registration status code V: Valid registration. All codes |
| N71287 | Cessna 182M |
Fixed-wing, single engine | Bogie Aviation LLC Newton, New Jersey |
Standard | 2013-05-30 | ValidFAA registration status code V: Valid registration. All codes |
| N5859B | Cessna 182A |
Fixed-wing, single engine | Co-owned owner California |
Standard | 2013-05-29 | ValidFAA registration status code V: Valid registration. All codes |
| N70208 | Cessna A185E |
Fixed-wing, single engine | Individual owner Washington |
Standard | 2013-05-29 | ValidFAA registration status code V: Valid registration. All codes |
| N9791H | Cessna 182R |
Fixed-wing, single engine | Individual owner Montana |
Standard | 2013-05-29 | ValidFAA registration status code V: Valid registration. All codes |
| N3111F | Cessna 182J |
Fixed-wing, single engine | Shaw Construction INC Hillsboro, Ohio |
Standard | 2013-05-28 | ValidFAA registration status code V: Valid registration. All codes |
| N3148S | Cessna 182G |
Fixed-wing, single engine | Hauser Family Flying LLC Mount Pleasant, Pennsylvania |
Standard | 2013-05-28 | ValidFAA registration status code V: Valid registration. All codes |
| N70658 | Cessna 182M |
Fixed-wing, single engine | Individual owner Arizona |
Standard | 2013-05-28 | ValidFAA registration status code V: Valid registration. All codes |
| N9992E | Cessna 182P |
Fixed-wing, single engine | Individual owner Texas |
Standard | 2013-05-28 | ValidFAA registration status code V: Valid registration. All codes |
| N5284G | Cessna 305A |
Fixed-wing, single engine | ABC Farms INC Spooner, Wisconsin |
Standard | 2013-05-22 | ValidFAA registration status code V: Valid registration. All codes |
| N91311 | Cessna 180H |
Fixed-wing, single engine | Co-owned owner Alaska |
Standard | 2013-05-22 | ValidFAA registration status code V: Valid registration. All codes |
| N9196G | Cessna 182N |
Fixed-wing, single engine | Individual owner Washington |
Standard | 2013-05-20 | ValidFAA registration status code V: Valid registration. All codes |
| N42300 | Cessna 182L |
Fixed-wing, single engine | Individual owner Arizona |
Standard | 2013-05-17 | ValidFAA registration status code V: Valid registration. All codes |
| N3155F | Cessna 182J |
Fixed-wing, single engine | Co-owned owner Colorado |
Standard | 2013-05-16 | ValidFAA registration status code V: Valid registration. All codes |
| N3MJ | Beech H35 |
Fixed-wing, single engine | Individual owner Montana |
Standard | 2013-05-15 | ValidFAA registration status code V: Valid registration. All codes |
| N735MN | Cessna 182Q |
Fixed-wing, single engine | Curtis Kyp Victor, Montana |
Standard | 2013-05-14 | ValidFAA registration status code V: Valid registration. All codes |
| N3123S | Cessna 182G |
Fixed-wing, single engine | Gabin LLC Tulsa, Oklahoma |
Standard | 2013-05-13 | ValidFAA registration status code V: Valid registration. All codes |
| N3246D | Cessna 180 |
Fixed-wing, single engine | Jaden H Erwin Dds Pllc Helena, Montana |
Standard | 2013-05-13 | ValidFAA registration status code V: Valid registration. All codes |
| N54550 | Cessna-Vansant Interprises-Inc 305A |
Fixed-wing, single engine | Individual owner Texas |
Standard | 2013-05-13 | ValidFAA registration status code V: Valid registration. All codes |
| N20769 | Cessna 182P |
Fixed-wing, single engine | 20769 LLC Elbert, Colorado |
Standard | 2013-05-10 | ValidFAA registration status code V: Valid registration. All codes |
| N123KL | Cessna 182Q |
Fixed-wing, single engine | Wings Over the Rockies LLC Wittmann, Arizona |
Standard | 2013-05-09 | ValidFAA registration status code V: Valid registration. All codes |
| N4968A | Cessna 180 |
Fixed-wing, single engine | D&B Aircraft Leasing LLC Anchorage, Alaska |
Standard | 2013-05-09 | ValidFAA registration status code V: Valid registration. All codes |
| N7202E | Cessna 182B |
Fixed-wing, single engine | Individual owner Florida |
Standard | 2013-05-09 | ValidFAA registration status code V: Valid registration. All codes |
| N9330C | Cessna 180 |
Fixed-wing, single engine | Aircraft Structural Repair INC Hamilton, Montana |
Standard | 2013-05-09 | ValidFAA registration status code V: Valid registration. All codes |
| N52674 | Cessna 182P |
Fixed-wing, single engine | Co-owned owner Oregon |
Standard | 2013-05-08 | ValidFAA registration status code V: Valid registration. All codes |
| N690DP | Beech 95-B55 (T42A) |
Fixed-wing, multi-engine | Individual owner Ohio |
Standard | 2013-05-08 | ValidFAA registration status code V: Valid registration. All codes |
| N727ER | Cessna 305B |
Fixed-wing, single engine | Banjo Boy LLC Bozeman, Montana |
Standard | 2013-05-08 | ValidFAA registration status code V: Valid registration. All codes |
| N9145G | Cessna 182N |
Fixed-wing, single engine | Individual owner California |
Standard | 2013-05-08 | ValidFAA registration status code V: Valid registration. All codes |
| N3988D | Cessna 182A |
Fixed-wing, single engine | Individual owner Montana |
Standard | 2013-05-06 | ValidFAA registration status code V: Valid registration. All codes |
| N8336S | Cessna 182H |
Fixed-wing, single engine | Co-owned owner Oklahoma |
Standard | 2013-05-06 | ValidFAA registration status code V: Valid registration. All codes |
| N2748Q | Cessna 182K |
Fixed-wing, single engine | Individual owner California |
Standard | 2013-05-01 | ValidFAA registration status code V: Valid registration. All codes |
| N4670K | Cessna 182P |
Fixed-wing, single engine | Individual owner North Carolina |
Standard | 2013-05-01 | ValidFAA registration status code V: Valid registration. All codes |
| N8809X | Cessna 182D |
Fixed-wing, single engine | Individual owner Nebraska |
Standard | 2013-04-30 | ValidFAA registration status code V: Valid registration. All codes |
| N5234G | Cessna 305A |
Fixed-wing, single engine | Individual owner Georgia |
Standard | 2013-04-29 | ValidFAA registration status code V: Valid registration. All codes |
| N5481N | Cessna 182R |
Fixed-wing, single engine | Individual owner Illinois |
Standard | 2013-04-25 | ValidFAA registration status code V: Valid registration. All codes |
| N831SM | Cessna 180H |
Fixed-wing, single engine | Skowhegan Leasing INC Skowhegan, Maine |
Standard | 2013-04-23 | ValidFAA registration status code V: Valid registration. All codes |
| N8379S | Cessna 182H |
Fixed-wing, single engine | Air Dakota Flite INC Hettinger, North Dakota |
Standard | 2013-04-23 | ValidFAA registration status code V: Valid registration. All codes |
| N9704G | Cessna 180H |
Fixed-wing, single engine | Johnsons Aero AG INC Box Elder, South Dakota |
Standard | 2013-04-23 | ValidFAA registration status code V: Valid registration. All codes |
| N1386M | Cessna 182P |
Fixed-wing, single engine | Individual owner Minnesota |
Standard | 2013-04-22 | ValidFAA registration status code V: Valid registration. All codes |
| N5706R | Cessna 182F |
Fixed-wing, single engine | Individual owner Michigan |
Standard | 2013-04-18 | ValidFAA registration status code V: Valid registration. All codes |
| N759CE | Cessna 182Q |
Fixed-wing, single engine | Co-owned owner Florida |
Standard | 2013-04-17 | ValidFAA registration status code V: Valid registration. All codes |
| N2324R | Cessna 182G |
Fixed-wing, single engine | Co-owned owner Idaho |
Standard | 2013-04-16 | ValidFAA registration status code V: Valid registration. All codes |
| N91718 | Cessna 182M |
Fixed-wing, single engine | Individual owner Ohio |
Standard | 2013-04-12 | ValidFAA registration status code V: Valid registration. All codes |
| N7598S | Cessna 182Q |
Fixed-wing, single engine | Lindsey Bridge LLC Hahira, Georgia |
Multiple | 2013-04-11 | ValidFAA registration status code V: Valid registration. All codes |
| N88PK | Cessna 182N |
Fixed-wing, single engine | Gray Farms INC Albany, Oregon |
Standard | 2013-04-10 | ValidFAA registration status code V: Valid registration. All codes |
| N1529C | Cessna 180 |
Fixed-wing, single engine | Individual owner Washington |
Restricted | 2013-04-09 | ValidFAA registration status code V: Valid registration. All codes |
| N117FF | Cessna 182P |
Fixed-wing, single engine | Roaming Homes INC South Saint Paul, Minnesota |
Standard | 2013-04-08 | ValidFAA registration status code V: Valid registration. All codes |
| N1376S | Cessna 182P |
Fixed-wing, single engine | Clarklind Farms Tulare, California |
Standard | 2013-04-08 | ValidFAA registration status code V: Valid registration. All codes |
| N4858D | Cessna 182A |
Fixed-wing, single engine | Individual owner New Mexico |
Multiple | 2013-04-08 | ValidFAA registration status code V: Valid registration. All codes |
| N7939V | Cessna 180H |
Fixed-wing, single engine | Individual owner Oregon |
Standard | 2013-04-08 | ValidFAA registration status code V: Valid registration. All codes |
| N182W | Cessna 182Q |
Fixed-wing, single engine | Individual owner Nevada |
Standard | 2013-04-05 | ValidFAA registration status code V: Valid registration. All codes |
| N3151D | Cessna 180 |
Fixed-wing, single engine | Van Aero LLC Dover, Delaware |
Standard | 2013-04-05 | ValidFAA registration status code V: Valid registration. All codes |
| N5019D | Cessna 182A |
Fixed-wing, single engine | Individual owner Florida |
Standard | 2013-04-05 | ValidFAA registration status code V: Valid registration. All codes |
| N21009 | Cessna 182P |
Fixed-wing, single engine | Individual owner California |
Standard | 2013-04-04 | ValidFAA registration status code V: Valid registration. All codes |
| N356JT | Cessna 182D |
Fixed-wing, single engine | Horizon Aviation LLC Mobile, Alabama |
Standard | 2013-04-04 | ValidFAA registration status code V: Valid registration. All codes |
| N678W | Cessna 182M |
Fixed-wing, single engine | Co-owned owner Texas |
Standard | 2013-04-04 | ValidFAA registration status code V: Valid registration. All codes |
| N735UL | Cessna 182Q |
Fixed-wing, single engine | Co-owned owner Maryland |
Standard | 2013-04-03 | ValidFAA registration status code V: Valid registration. All codes |
| N7834K | Cessna 180J |
Fixed-wing, single engine | Individual owner Alaska |
Restricted | 2013-03-27 | ValidFAA registration status code V: Valid registration. All codes |
| N180PW | Cessna 180 |
Fixed-wing, single engine | Individual owner Nebraska |
Standard | 2013-03-26 | ValidFAA registration status code V: Valid registration. All codes |
| N3359F | Cessna 182J |
Fixed-wing, single engine | Co-owned owner Washington |
Standard | 2013-03-26 | ValidFAA registration status code V: Valid registration. All codes |
| N7960D | Beech H35 |
Fixed-wing, single engine | Individual owner South Carolina |
Standard | 2013-03-26 | ValidFAA registration status code V: Valid registration. All codes |
| N2847R | Cessna 182K |
Fixed-wing, single engine | Co-owned owner Montana |
Standard | 2013-03-25 | ValidFAA registration status code V: Valid registration. All codes |
| N4737U | Cessna 180G |
Fixed-wing, single engine | Moody Properties LLC Olympia, Washington |
Standard | 2013-03-22 | ValidFAA registration status code V: Valid registration. All codes |
| N7785A | Cessna 180A |
Fixed-wing, single engine | Zulu Forty One LLC Anchorage, Alaska |
Standard | 2013-03-21 | ValidFAA registration status code V: Valid registration. All codes |
| N9989E | Cessna 182P |
Fixed-wing, single engine | T Craft Aero Club INC Nampa, Idaho |
Standard | 2013-03-19 | ValidFAA registration status code V: Valid registration. All codes |
| N330GB | Cessna 182P |
Fixed-wing, single engine | Individual owner California |
Standard | 2013-03-15 | ValidFAA registration status code V: Valid registration. All codes |
| N3471F | Cessna 182J |
Fixed-wing, single engine | Del Norte Flying LLC Del Norte, Colorado |
Standard | 2013-03-15 | 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 9, 2026. Horsepower and thrust are the FAA's figures for the series, not for a particular aircraft.