M250 Repair & Overhaul
Air Services Int’l., LLC (ASI) has specialized in providing rotor-wing services for over 50 years. With decades of experience in M250 support, ASI is a one stop shop for Rolls-Royce M250 series engine services.
M250 Rolls-Royce (Allison) Engine
Series I (250-C18, T63-A-5A, T63-A-700, 250-B15)
First certified on December 19, 1962, the 250-C18 & T63 series of turboshaft helicopter engines are still in service today, 50 years after their introduction. More than 6,400 250-C18, T63-A-5 and T63-A-700 engines were produced. The dash B15, a turboprop version, based on the 250-C18, was certified on March 27, 1969. Fewer than 100 of this B15 series were produced.
Applications
| Model | Type | Engine Part No. | Shaft H.P. | Year Intro | Application |
|---|---|---|---|---|---|
| 250-B15A | Turboprop | 6851931 | 317 | 1969 | Augusta (Siai Marchetti) SM 1019 |
| 250-B15G | Turboprop | 6853221 | 317 | 1969 | Augusta (Siai Marchetti) SM 1019 |
| T63-A-5A | Turboshaft | 6852500 | 250 | 1962 | Bell Helicopter OH-58A “Kiowa” |
| T63-A-700 | Turboshaft | 317 | 1965 | Bell Helicopter OH-58A “Kiowa” | MD Helicopters (Hughes) OH-6 “Cayuse” |
|
| 250-C18 | Turboshaft | 6854101 | 317 | 1962 | Bell Helicopter 206A “JetRanger”, TH-57A “Sea Ranger”| Fairchild Hiller FH-1100 | MD Helicopters (Hughes 369) MD 500, 500C |
| 250-C18A | Turboshaft | 6855321 | 317 | 1962 | MD Helicopters (Hughes 369) MD 500, 500C |
| 250-C18B | Turboshaft | 6856991 | 317 | 1965 | Bell Helicopter 206A “JetRanger” |
| 250-C18C | Turboshaft | 6857301 | 317 | 1965 | MD Helicopters (Hughes 369) MD 500, 500C |
Series II (250-C20, 250-C20R, T63-A-720, 250-B17, 250-C20S)
The 250-C20 turboshaft engine was certified November 15, 1968. One of the most widely used light turbine helicopter powerplants, over 16,000 (250-C20, 250-C20R and T63-A-720) engines have been produced. A turboprop version of the Series II, 250-B17 turboprop engine was first certified on April 7, 1971. Over 1,300 250-B17 engines were produced and many are still in service today.
Applications
| Model | Type | Engine Part No. | Shaft H.P. | Year Intro | Application |
|---|---|---|---|---|---|
| 250-B17 | Turboprop | 6853331 | 400 | 1971 | Boeing (ASTA/GAF) Nomad N22 | Cessna (American Jet Industries) 402 Turbo Star, 414 Turbo Star Pressurized |
| 250-B17B | Turboprop | 6889388 | 400 | 1974 | Agusta (SIAI Marchetti) SM1019 | Boeing (ASTA/GAF) Nomad N22 | Cessna (American Jet Industries) 402 Turbo Star, 414 Turbo Star Pressurized |
| 250-B17C | Turboprop | 6899291 23051124 6899291 23038150 |
420 | 1979 | Beech (Tradewind Turbines) A36 | Boeing (ASTA/GAF) N22, N24 “Nomad” | Britten-Norman BN-2T “Turbine Islander” | Cessna (American Jet Industries) 402 “Turbo Star”, 414 “Turbo Star Pressurized” | Enaer T-35DT “Pillan” | FFA AS-202 32T “Bravo” | Loral GZ-22 | Maule Air M-7-250 “Starcraft”, M-7-420 “Starcraft Turboprop” | Vulcanair (Partenavia) AP.68TP “Spartacus” |
| 250-B17D | Turboprop | 23005700 23051125 |
420 | 1983 | Aermacchi (Valmet) M-290 TP , L-90 TP “RediGO” | Fuji Heavy Industries T-5, KM-2D | Hindustan Aeronautics HTT-34 “Deepak” | Pacific Aerospace Corp. CT/4C “Airtrainier’ | Siai Marchetti SF.260TP | Thai Air Force RTAF-5 |
| 250-B17E | Turboprop | 23031861 | 420 | 1985 | Boeing (ASTA/GAF) N22, N24 “Nomad” |
| 250-B17F | Turboprop | 23033380 | 450 | 1988 | Aermacchi (Valmet) M-290 TP , L-90 TP “RediGO” | Beech (Allison) T-34C, AT-34 | Extra Aircraft EA-500 | Grob G 120TP |
| 250-B17F/1 | Turboprop | 23050800 | 450 | 1988 | Britten-Norman BN-2T “Turbine Islander” | Britten-Norman 4000 “Defender” |
| 250-B17F/2 | Turboprop | 23050805 | 450 | 1988 | Beech (Tradewind Turbines) A36 | Cessna (O & N Aircraft) P210N, T210 “Silver Eagle” | Composite Turbine Tech Glasair III | Schweizer RU-38B “Twin Condor” |
| 250-C20S | Turboprop | 23008092 | 420 | 1983 | Cessna (Soloy) 185, 206, 207 |
| 250-C20 | Turboshaft | 23033373 | 400 | 1968 | AgustaWestland AW109, AW109A | Airbus (MBB) Bo-105c | Bell Helicopter 206B “JetRanger” | MD Helicopters (Hughes 369) MD 500C |
| 250-C20B | Turboshaft | 23004550 6887190 6893660 |
420 | 1974 | AgustaWestland AW109A, AW109A MKII | Airbus (MBB) Bo-105CBS | Bell Helicopter 206B-3 “JetRanger” , 206L “LongRanger”, TH-57B “SeaRanger”, (Soloy) 47, 47G | Hiller (Rogerson) RH-1100 | Hiller (Soloy) UH-12 | MD Helicopters (Hughes 369) MD 500D, 500E | PZL Kania “Kitty Hawk” | RFB FT-400 “Fan Trainer” |
250-C20C T63-A-720 |
Turboshaft | 6887191 | 420 | 1976 | Bell Helicopter OH-58A+, OH-58C “Kiowa” | MD Helicopters (Hughes) OH-6B “Cayuse” |
| 250-C20F | Turboshaft | 6899271 | 420 | 1979 | Airbus (Aerospatiale) AS355E “TwinStar”, AS355F “Twin Squirrel” |
| 250-C20J | Turboshaft | 6899400 | 420 | 1981 | Bell Helicopter 206B-III “JetRanger”, 206L “LongRanger”, TH-57B, TH-57C “SeaRanger”, TH-67 “Creek” |
| 250-C20R | Turboshaft | 23033373 | 450 | 1989 | Airbus (Aerospatiale) AS355E “TwinStar”, AS355F “Twin Squirrel” | Bell Helicopter 206LT “LongRanger”, (Tridair) 206L Gemini ST |
| 250-C20R/1 | Turboshaft | 23038200 | 450 | 1986 | AgustaWestland AW109A, A109A MK.II “Plus”, AW109C, A109C MAX |
| 250-C20R/2 | Turboshaft | 23035212 23053265 |
450 | 1987 | Bell Helicopter 206B-III “JetRanger”, 206L “LongRanger” | MD Helicopters (Hughes 369) MD 500D, 500E, MD 520N | PZL SW-4 “Puszczyk” |
| 250-C20R/4 | Turboshaft | 23053301 | 450 | 1989 | Bell Helicopter 206B-III “JetRanger”, 206L-1 “LongRanger” |
| 250-C20W | Turboshaft | 23052351 | 420 | 1990 | Enstrom TH-28, 480A, 480B | Northrop Grumman RQ-8A “Fire Scout”, MQ-8B “Fire Scout” |
Series III (250-C28)
The 250-C28 turboshaft helicopter engine was certified in May 1976. Only 800 some engines in the C28 series were produced, primarily for the Bell 206L-1 LongRanger.
Applications
| Model | Type | Engine Part No. | Shaft H.P. | Year Intro | Application |
|---|---|---|---|---|---|
| 250-C28B | Turboshaft | 6895000 | 500 | 1976 | Bell Helicopter 206L-1 “LongRanger” |
| 250-C28C | Turboshaft | 6896000 23001830 |
500 | 1976 | Airbus (MBB) Bo-105LS |
Series IV(250-C30, 250-C40, 250-C47, T703-AD-700)
Turboshaft Engine (250-C40, T703-AD-700)
Initially certified on March 28, 1978 the 250-C30 and T703 series of light turbine helicopter engines have been extremely successful. Over 3,500 engines have been produced to date with more than 23 million flight hours logged in the fleet.
FADEC Turboshaft Engine (250-C40, 250-C47, 250-C30R/3, T703-AD-700C)
Certified on February 22, 1996, 250-C40 and 250-C47 series engines are installed with a FADEC (full authority digital engine) system. Since their introduction more than 1,700 engines have been produced. The C40 and C47 fleet has accumulated over 8 million hours of flight time.
VIP Kit Introduced in 2011, the VIP kit offers 250-C47 operators a 5% improvement in C47 engine performance for hot/high environments. Fuel efficiency is also improved, reducing fuel burn by 2%. consist of: (1) New engine impeller, (2)New diffuser vane, and (3) Optimized first stage turbine nozzle. Note: No additional weight is added to the engine with this kit
Applications
| Model | Type | Engine Part No. | Shaft H.P. | Year Intro | Application |
|---|---|---|---|---|---|
| 250-C30 | Turboshaft | 6890000 23062052 |
650 | 1978 | Cessna (Soloy) 337 “Skymaster” | MD Helicopters MD 530F | Sikorsky S76A | RFB FT-600 “Fan Trainer” |
| 250-C30G | Turboshaft | 23039781 | 650 | 1989 | Bell Helicopter 222 |
| 250-C30G/2 | Turboshaft | 23053999 | 650 | 1992 | Bell Helicopter 230 |
| 250-C30L | Turboshaft | Bell Helicopter 406CS, MH-58D “Combat Scout” | |||
| 250-C30M | Turboshaft | 23005219 | 650 | 1983 | Airbus (Europcopter) AS350D AllStar STC |
| 250-C30P | Turboshaft | 23004545 | 650 | 1981 | Bell Helicopter 206L-I Air Services Int STC, 206L-III “LongRanger”, 206L-IV “LongRanger” |
250-C30R T703-AD-700 |
Turboshaft | 23055439 | 650 | 1981 | Bell Helicopter OH-58D “Kiowa Warrior” |
| 250-C30R/1 | Turboshaft | 23034148 | 450 | 1986 | AgustaWestland AW109 All+ Italian Military |
| 250-C30S | Turboshaft | 23005290 | 650 | 1982 | Sikorsky S76A MKII |
| 250-C30U | Turboshaft | 23051054 | 650 | 1989 | Bell 406CS “Combat Scout” |
250-C30R/3 T703-AD-700C |
Turboshaft | 23065550 23056117 |
650 | 1997 | Bell OH-58D “Kiowa Warrior” |
| 250-C30R/3M | Turboshaft | 23069722 | 650 | 2001 | Boeing AH-6 “Little Bird” | MD Helicopters MH-6 “Little Bird” |
| 250-C40B | Turboshaft | 23063378 | 715 | 1996 | Bell Helicopter 430 |
| 250-C47B | Turboshaft | 23063392 | 650 | 1996 | Bell Helicopter 407 |
| 250-C47M | Turboshaft | 23065460 | 650 | 1997 | MD Helicopters MD 600N |
| 250-C47E | Turboshaft | 700 | 2013 | MD Helicopters MD 540F |