Table 3. Summary of sampled aircraft engines and airframes.

Engine manufacturer, model, and series	Aircraft manufacturer	Years of aircraft manufacture	Aircraft model and series	No. of plumes sampled
CFM, CFM International; GE, General Electric Aviation; PW, Pratt and Whitney; EA, Engine Alliance (GE/PW); IAE, International Aero Engines.
CFM CFM56-3B	Boeing	1987–1997	737–300, 737–500	20
CFM CFM56-3C	Boeing	1998	737–400	1
CFM CFM56-5A	Airbus	1990–1998	A319–100, A320–200	11
CFM CFM56-5B	Airbus	1999–2013	A319–100, A320–200, A321–200	40
CFM CFM56-5C	Airbus	2001	A340–300	2
CFM CFM56-7B	Boeing	1998–2014	737–700, 737–800, 737–900	86
GE CF34-3	Bombardier	2000–2003	CRJ-200	6
GE CF34-8	Bombardier, Embraer	2006–2011	CRJ-700, CRJ-900, ERJ-170	23
GE CF6-80C2	Boeing	1989–2012	747–400, 767–300	6
GE GE90-94B	Boeing	2002–2003	777–200	2
GE GE90-115B	Boeing	2003–2012	777–300, 777–300	6
GE GEnx-2B67	Boeing	2012–2014	747–800	2
EA GP7270	Airbus	2010–2013	A380–800	3
PW JT8D	McDonnell Douglas	1987	MD-80	2
PW PT6A	Beech	1996	1900D	7
PW PW118	Embraer	1994–1999	ERJ-120	10
PW 150A	Bombardier	2004–2013	DHC-8	3
PW PW2000	Boeing	1984	757–200	1
PW PW4000	Airbus, Boeing	2002	A330–200, 767–300	2
Rolls-Royce AE3007	Embraer	1999–2007	ERJ-145	2
Rolls-Royce RB211	Boeing	1992–1993	747–400, 757–200	2
Rolls-Royce Trent 556	Airbus	2003–2009	A340–600	2
Rolls-Royce Trent 772	Airbus	2009	A330–200	2
Rolls-Royce Trent 892	Boeing	2006	777–200	1
Rolls-Royce Trent 970	Airbus	2011–2013	A380–800	3
IAE V2522	Airbus	1998	A319–100	1
IAE V2524	Airbus	2005–2007	A319–100	2
IAE V2527	Airbus	2000–2013	A319–100, A320–200	17
IAE V2533	Airbus	2008–2014	A321–200	10