# Alliedsign LTS101-750B-1

- Type: Engine model (FAA registry)
- Registry code: 02656
- Manufacturer (registry): ALLIEDSIGN
- Model: LTS101-750B-1
- Engine type: Turbo-shaft
- Power: 550 hp
- Data sheet: [TCDS E5NE](https://openairdocs.org/tcds/E5NE) (OpenAirDocs)
- Holder: Intermountain Turbine Services Inc.
- Installed in: 0 registered aircraft
- Page: https://openairdocs.org/engine/alliedsign-lts101-750b-1

Model codes come from the FAA registry's reference file.

## ADs that may apply (OpenAirDocs)

Matched to this engine model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment.

- [AD 2011-08-06](https://openairdocs.org/ad/2011-08-06): Power turbine rotors · Honeywell International LTP 101-600A-1A, LTP 101-700A-1A, LTS101-600A-2 and 10 more. Effective May 17, 2011
- [AD 2009-24-12](https://openairdocs.org/ad/2009-24-12): Gas generator · Honeywell International LTP 101-600A-1A, LTP 101-700A-1A, LTS101-600A-2 and 12 more. Effective Jan 4, 2010
- [AD 2002-03-09 R1](https://openairdocs.org/ad/2002-03-09-R1): Impellers · Honeywell International LTP 101-600, LTP 101-600A, LTP 101-600A-1A and 14 more. Effective Mar 27, 2002
- [AD 2001-22-07](https://openairdocs.org/ad/2001-22-07): Rigid Tube Fuel Manifold Assemblies · Honeywell International LTP 101-600, LTP 101-600A, LTP 101-600A-1A and 14 more. Effective Nov 30, 2001
- [AD 96-12-27](https://openairdocs.org/ad/96-12-27): Gas Generator Turbine Disk · Honeywell International LTP 101-600, LTP 101-600A, LTP 101-600A-1A and 21 more. Effective Aug 19, 1996
- [AD 96-12-05](https://openairdocs.org/ad/96-12-05): Turbine rotors · Honeywell International LTP 101-600, LTP 101-600A, LTP 101-600A-1A and 14 more. Effective Aug 12, 1996
- [AD 95-26-01](https://openairdocs.org/ad/95-26-01): Power Turbine · Honeywell International LTS101-650B-1, LTS101-650C, LTS101-750B-1 and 1 more. Effective Apr 22, 1996
- [AD 95-16-04](https://openairdocs.org/ad/95-16-04): Axial Compressor Rotors · Honeywell International LTP 101-600, LTP 101-600A, LTP 101-600A-1A and 21 more. Effective Oct 2, 1995
- [AD 95-08-14](https://openairdocs.org/ad/95-08-14): Electronic Overspeed Protection System · Honeywell International LTS101-650B-1, LTS101-650C-3, LTS101-650C-3A and 2 more. Effective May 9, 1995
- [AD 94-18-06](https://openairdocs.org/ad/94-18-06): Bearings · Honeywell International LTP 101-600, LTP 101-600A, LTP 101-600A-1A and 21 more. Effective Sep 26, 1994
- [AD 93-13-11](https://openairdocs.org/ad/93-13-11): Gas Generator Turbine Rotor Disk · Honeywell International LTP 101-600, LTP 101-600A, LTP 101-600A-1A and 22 more. Effective Nov 8, 1993
- [AD 92-15-07](https://openairdocs.org/ad/92-15-07): Integrally Cast Power Turbine (PT) Rotor Blade · Honeywell International LTP 101-600, LTP 101-600A, LTP 101-600A-1A and 21 more. Effective Sep 2, 1992
- [AD 88-14-01](https://openairdocs.org/ad/88-14-01): Power Turbine Disk · Honeywell International LTS101-600A, LTS101-600A-1, LTS101-600A-2 and 17 more. Effective Jul 6, 1988

Historical (superseded or no longer in force):

- [AD 95-09-02](https://openairdocs.org/ad/95-09-02) (historical): Fuel Pumps · Honeywell International LTP 101-600, LTP 101-600A, LTP 101-600A-1A and 12 more. Effective May 10, 1995

## Registered aircraft

None registered with this engine model now.

## NTSB investigations

None matched to aircraft with this engine model.

## FAA accident and incident reports

None matched to aircraft with this engine model.

## Service difficulty reports (350, newest 50)

As reported by operators and repair stations, by the model named in the report.

- [SDR QMLA2023052620040](https://openairdocs.org/sdr/QMLA2023052620040), May 8, 2023: TAIL BOOM. CRACKED. DURING VISUAL INSPECTIONS FOUND A CRACK AT THE 0900 O'CLOCK POSITION ON THE 11L FRAME OF THE TAIL BOOM. DURING DISASSEMBLY AND FURTHER INSPECTION FOUND CHAFE DA
- [SDR HDNA20230222001](https://openairdocs.org/sdr/HDNA20230222001), Feb 21, 2023: SWASHPLATE. CRACKED. DURING THE PERFORMANCE OF A DAILY AIRWORTHINESS CHECK THE MAIN ROTOR SWASHPLATE SUPPORT WAS FOUND CRACKED. CRACKS ARE NOT ALLOWED ON THIS COMPONENT.
- [SDR CA190521024](https://openairdocs.org/sdr/CA190521024), Apr 29, 2019: CHIP DETECTOR. ACTIVATED. (CAN) THE CREW WAS JUST FINISHING UP THE COLLECTIVE PITCH STOP CHECK WHEN ENG #2 CHIP ILLUMINATED. CONDUCTED THE ENG CHIP PROCEDURE AS LISTED IN THE QRH. CHIP D
- [SDR HDNA2019013100001](https://openairdocs.org/sdr/HDNA2019013100001), Jan 30, 2019: WIRE HARNESS. SHORTED. DURING CRUISE FLIGHT PILOT NOTICED MASTER CAUTION FLICKERING, DETERMINED IT WAS "ENG 1 LOW" LIGHT FLICKERING, BOTH ENG INDICATIONS SOLID, NO OTHER INDICATION NO
- [SDR QMLA2016050916047](https://openairdocs.org/sdr/QMLA2016050916047), May 9, 2016: CHIP DETECTOR. FALSE ACTIVATION. AFTER PICKING UP THE PATIENT, ABOUT 3 MINS AFTER DEPARTURE, THE ENG 1 CHIP CAUTION LIGHT ILLUMINATED DURING CRUISE FLIGHT AT 1000’ ABOVE GND LEVEL. CONDUCTED TH
- [SDR QMLA2015121815111](https://openairdocs.org/sdr/QMLA2015121815111), Dec 18, 2015: UNKNOWN. ODOR. ON RUN UP AT IDLE, THE CREW SMELLED A BURNING ODOR, NEAR RT AFT SEAT & COPILOT SEAT. INVESTIGATED & COULD NOT DUPLICATE ANY ODOR. LOOKED FOR SIGNS OF ELEC COMPO
- [SDR QMLA2015100815094](https://openairdocs.org/sdr/QMLA2015100815094), Oct 8, 2015: RADIO. FIRE. AT APPROX 1539 HOURS ON OCTOBER 8TH 2015 ACFT EXPERIENCED AN ELEC MALFUNCTION WHICH PRODUCED SMOKE IN THE COCKPIT, NR 1 VHF RADIO FAILED. IMMEDIATELY NOTICED AN
- [SDR 3D9A2015091200006](https://openairdocs.org/sdr/3D9A2015091200006), Sep 12, 2015: ENGINE. MAKING METAL. NR 1 ENGINE CHIP LIGHT ILLUMINATED IN FLIGHT. MADE PRECAUTIONARY LANDING. DISCOVERED SMALL SLIVER ON REAR BEARING SUPPORT HOUSING CHIP DETECTOR. CATEGORIZED AND
- [SDR QMLA2015081115069](https://openairdocs.org/sdr/QMLA2015081115069), Aug 11, 2015: O-RING. NOT SEATED. FOUND FUEL CAP ORING HAD ROLLED OFF OF ITS SEAT, RESEATED ORING & FITTED FUEL CAP. COMPLETED MX FLIGHT, FUEL CAP LEAK CHECKED GOOD.
- [SDR CA150420006](https://openairdocs.org/sdr/CA150420006), Apr 7, 2015: ENGINE. MALFUNCTIONED. (CAN) DURING AN AUTOROTATION FOR INITIAL PILOT TRAINING BOTH ENGINES THROTTLES WERE RETARDED TO IDLE. IMMEDIATELY FOLLOWING THE AUTOROTATION ENTRY NR 2 ENGINE N
- [SDR QMLA2015031315016](https://openairdocs.org/sdr/QMLA2015031315016), Mar 13, 2015: BOLT. SHEARED. DURING AN AIRFRAME ZONE 1 INSPECTION, FOUND ONE SIDE OF THE MR HUB, PN 222-012-101-107 SN A98, CORD WEIGHT MOUNT LOOSE. UPON REMOVAL OF THE NUT FROM THE LONG, A
- [SDR CA150118002](https://openairdocs.org/sdr/CA150118002), Jan 18, 2015: ANTENNA. UNSERVICEABLE. (CAN) DURING A DAILY INSPECTION THE ELT ANTENNA P/N ANT-406RW INSTALLED WAS DISCOVERED TO BE LOOSE AROUND THE IT`S BASE. UPON FURTHER INVESTIGATION CRACKS WERE 
- [SDR CA150112015](https://openairdocs.org/sdr/CA150112015), Jan 9, 2015: MOUNT. CRACKED. (CAN) DURING THE DAILY INSPECTION THE ENGINEER NOTICED WHAT LOOKED LIKE A CRACK ON THE FORWARD VHF ANTENNA BASE MOUNT PROVISIONS. UPON DETAILED INSPECTION IT WA
- [SDR CA140619011](https://openairdocs.org/sdr/CA140619011), Jun 19, 2014: BLADE. CRACKED. (CAN) DURING A DAILY INSPECTION OF THE T/R BLADES IT WAS NOTED THAT A HAIR LINE CRACK WAS VISBLE NEAR THE ROOT OF THE BLADE S/N 393. UPON FURTHER INVESTIGATION 
- [SDR QMLA2013030713033](https://openairdocs.org/sdr/QMLA2013030713033), Mar 7, 2013: ENGINE. MAKING METAL. CHIP LIGHT NR 2 ENGINE. REMOVED CHIP DETECTOR, DETERMINED TO BE A MINOR EVENT IAW MM. PERFORMED GROUND RUN FOR PRECAUTIONARY MEASURES, NO DEFECTS NOTED.
- [SDR QMLA2013021313027](https://openairdocs.org/sdr/QMLA2013021313027), Feb 13, 2013: ENGINE. FAILED. AT START OF APPROACH, HAD A PROUNOUNCED YAW FOLLOWED BY NR 2 ENGINE LOW LIGHT COMING ON, OBSERVED ENGINE RPM CLIMB TO 110 PERCENT AND DROP OFF, ENGINE RPM FELL 
- [SDR QMLA2013021313034](https://openairdocs.org/sdr/QMLA2013021313034), Feb 13, 2013: FUEL CONTROL. MALFUNCTIONED. AT APPROX 1030 AM WHILE STARTING AN APPROACH INTO THE HOSPITAL. HAD A PRONOUNCED YAW FOLLOWED BY THE NR 2 ENGINE LOW LIGHT COMING ON, OBSERVED THE ENGINE RPM CL
- [SDR QMLA2012111912185](https://openairdocs.org/sdr/QMLA2012111912185), Nov 19, 2012: ENGINE. STALLED. DURING RETURN LEG OF FLIGHT, ENGINES BEGAN TO SURGE AND OSCILLATE WHILE IN LEVEL CRUISE FLIGHT. CONTINUED BACK TO BASE FOR A PRECAUTIONARY LANDING. WHILE IN HOV
- [SDR HDNA201210240005](https://openairdocs.org/sdr/HDNA201210240005), Oct 24, 2012: SHAFT. FAILED. SHAFT HAS FAILED SEVERAL TIMES IN THE LAST 6 MONTHS. THE OIL COOLER ASSEMBLY HAS BEEN CHANGED ONCE. WEATHER HASN’T BEEN A PROBLEM. WOULD BE GUESSING TO SAY WHAT
- [SDR CA121016007](https://openairdocs.org/sdr/CA121016007), Oct 14, 2012: COMPRESSOR. STALLED. (CAN) WHILE ON A TRAINING MISSION, ABRUPT POWER CHANGES WERE BEING CONDUCTED WHEN COMPRESSOR STALL WAS NOTED ON THE NR 2 ENGINE. THE TRAINING MISSION WAS CANCEL
- [SDR HDNA201209090004](https://openairdocs.org/sdr/HDNA201209090004), Sep 9, 2012: SHAFT. FAILED. SHAFT HAS FAILED SEVERAL TIMES IN THE LAST 6 MONTHS. THE OIL COOLER ASSEMBLY HAS BEEN CHANGED ONCE. WEATHER HASN’T BEEN A PROBLEM. WOULD BE GUESSING TO SAY WHAT
- [SDR QMLA2012082012136](https://openairdocs.org/sdr/QMLA2012082012136), Aug 20, 2012: GEARBOX. MAKING METAL. ACFT RECEIVED A TAIL ROTOR GEARBOX CHIP LIGHT UPON ENGINE START UP THAT COULD NOT BE CLEARED USING CHIP PULSE. LIGHT ILLUMINATED BEFORE TAKEOFF WAS INITIATED AN
- [SDR HDNA201207300003](https://openairdocs.org/sdr/HDNA201207300003), Jul 30, 2012: SHAFT. FAILED. SHAFT HAS FAILED SEVERAL TIMES IN THE LAST 6 MONTHS. THE OIL COOLER ASSEMBLY HAS BEEN CHANGED ONCE. WEATHER HASN’T BEEN A PROBLEM. WOULD BE GUESSING TO SAY WHAT
- [SDR CA120629012](https://openairdocs.org/sdr/CA120629012), Jun 28, 2012: FRAME. CRACKED. (CAN) DURING ROUTINE INSPECTION ENGINEER DISCOVERED 1" CRACK IN THE 10L FRAME. THE ACFT WAS IMMEDIATELY REMOVED FROM SERVICE. TAILBOOM REMOVED AND SENT FOR REPA
- [SDR HDNA201206120002](https://openairdocs.org/sdr/HDNA201206120002), Jun 12, 2012: SHAFT. FAILED. SHAFT HAS FAILED SEVERAL TIMES IN THE LAST 6 MONTHS. THE OIL COOLER ASSY HAS BEEN CHANGED ONCE. WEATHER HASN’T BEEN A PROBLEM. WOULD BE GUESSING TO SAY WHAT WAS
- [SDR CA120523023](https://openairdocs.org/sdr/CA120523023), May 18, 2012: PANEL. CRACKED. (CAN) DURING A DAILY INSPECTION THE TAILBOOM IGB PANEL WAS ADDITIONALLY REMOVED TO CLEAN. THE ENGINEER CLEANING THE PANEL FOUND A SUSPECTED CRACK LEADING AWAY F
- [SDR CA120712002](https://openairdocs.org/sdr/CA120712002), May 18, 2012: BLADE. DAMAGED. (CAN) CYCLIC STICK PUSHED EXCESSIVELY FORWARD AND MAIN ROTOR CONTACTED THE UPPER WIRE STRIKE WHILE ON THE GROUND AT IDLE WITH NO CHANGE IN RPM. MAIN ROTOR BLADE
- [SDR HDNA201205080001](https://openairdocs.org/sdr/HDNA201205080001), May 8, 2012: SHAFT. FAILED. SHAFT HAS FAILED SEVERAL TIMES IN THE LAST 6 MONTHS. THE OIL COOLER ASSEMBLY HAS BEEN CHANGED ONCE. WEATHER HASN’T BEEN A PROBLEM. WOULD BE GUESSING TO SAY WHAT
- [SDR QMLA2012041212058](https://openairdocs.org/sdr/QMLA2012041212058), Apr 12, 2012: O-RING. FAILED. CREW REPORTED SENSING A STRONG ODOR OF FUEL IN CABIN ON THE RETURN LEG TO THE BASE FOLLOWING A REFUELING STOP. ON LANDING AT BASE THE ODOR HAD DISSIPATED. INSPE
- [SDR QMLA2012040912055](https://openairdocs.org/sdr/QMLA2012040912055), Apr 9, 2012: FITTING. CRACKED. PILOT REPORT NR 2 ENGINE OIL LEAK. CLEANED AREA AND DETERMINED THAT OIL LEAK WAS FROM CRACKED OIL RETURN LINE FITTING. FITTING REPLACED.
- [SDR CA120404007](https://openairdocs.org/sdr/CA120404007), Apr 3, 2012: STARTER GEN. MALFUNCTIONED. (CAN) ON RETURN TRIP TO THE HOSPITAL GENERATOR FAILED IN-FLIGHT. ACFT LANDED AT THE CITY CENTER AIRPORT WITH NO FUTHER OCCURENCES. AFTER INVESTIGATION INTO THE 
- [SDR QMLA2012032012043](https://openairdocs.org/sdr/QMLA2012032012043), Mar 20, 2012: ENGINE. MAKING METAL. ENROUTE, HAD TWO NR 1 ENGINE CHIP LIGHTS AND WAS ABLE TO CLEAR WITH THE ZAPPER. THE THIRD CHIP LIGHT COULD NOT BE CLEARED, PILOT LANDED WITHOUT INCIDENT. NO ENG
- [SDR CA120229007](https://openairdocs.org/sdr/CA120229007), Feb 29, 2012: ENGINE. MAKING METAL. (CAN) UPON LANDING NR 2 ENGINE CHIP LIGHT ILLUMINATED, ACFT SHUTDOWN. ENGINEER INSPECTED THE NR 2 SCAVENGE FILTER CHIP DETECTOR FOUND CHIP CLASSIFIED AS MINOR C
- [SDR QMLA2012022712031](https://openairdocs.org/sdr/QMLA2012022712031), Feb 27, 2012: ENGINE. MAKING METAL. ACFT HAD TWO MINOR, NR 2 ENGINE CHIP LIGHT EVENTS, EACH INVOLVING A FEW SMALL OR "LIGHT" CLASSIFIED PARTICLES ON THE FULL FLOW CHIP DETECTOR ONLY. EACH TIME THE
- [SDR QMLA2012021712020](https://openairdocs.org/sdr/QMLA2012021712020), Feb 17, 2012: ENGINE. MAKING METAL. FOUND NR 2 ENGINE COMBUSTION DRAIN VALVE WAS NOT WORKING, REMOVED DRAIN FOR REPLACEMENT AND FOUND A PIECE OF METAL WEDGED INTO COMBUSTION DRAIN VALVE. METAL PIE
- [SDR CA120131010](https://openairdocs.org/sdr/CA120131010), Jan 30, 2012: ACTUATOR. FAILED. (CAN) LINEAR ACTUATOR FAILED, UNABLE TO TRIM ENGINE. DURING TROUBLESHOOTING TEST FLIGHT. ACFT SAFELY RETURNED TO BASE. ACTUATOR WAS REMOVED.
- [SDR CA120130004](https://openairdocs.org/sdr/CA120130004), Jan 26, 2012: ENGINE. DAMAGED. (CAN) DETECTED A GAS PRODUCER TURBINE RUB. DURING A 600 HR INSPECTION. ENGINE R & R WITH SERVICEABLE.
- [SDR CA111228004](https://openairdocs.org/sdr/CA111228004), Dec 27, 2011: TRANSMISSION. MAKING METAL. (CAN) TRANSMISSION CHIP LIGHT ILLUMINATED DURING ENGINE SHUTDOWN AFTER FLIGHT BACK AT BASE. AFTER INSPECTION, AME FOUND METAL CHIP ON THE NR 1 CHIP DETECTOR. TR
- [SDR QMLA20110916001](https://openairdocs.org/sdr/QMLA20110916001), Sep 16, 2011: DOOR. CORRODED. CORROSION FOUND COMING FROM UNDER PROTECTOR PLATE ON EXTERIOR OF PANEL ASSY. (LT ENGINE DOOR) PANEL WAS REMOVED AND SENT TO VENDOR FOR REPAIR.
- [SDR CA110811008](https://openairdocs.org/sdr/CA110811008), Aug 10, 2011: GEARBOX. MAKING METAL. SCAVENGE LINE CHIP DETECTOR AND OIL FILTER FOUND TO HAVE MINOR CLASSIFICATION OF METAL CONTAMINTATION. OIL SYS FLUSH AND FILTER CHANGE CARRIED OUT. POST TEST FL
- [SDR QMLA2011060411062](https://openairdocs.org/sdr/QMLA2011060411062), Jun 4, 2011: INDICATOR. FLUCTUATES. MADE THE FIRST LEG FROM BASE TO HOSPITAL, LANDED FINE, KEPT BOTH ENGINE RUNNING AT IDLE, PATIENT LOADED, READY TO GO, HOVER CHECK WITH BOTH ENG NR 1 & NR 2 TORQ
- [SDR QMLDML0371](https://openairdocs.org/sdr/QMLDML0371), May 23, 2011: MAST. WORN. MAIN ROTOR MAST WAS REMOVED FOR OTHER INSPECTIONS AND WAS FOUND TO HAVE FRETTING IN ZONE "G". AREA OF THE SEALING RING RUNNER FOR THE UPPER MAST SEAL.
- [SDR CA110519004](https://openairdocs.org/sdr/CA110519004), May 16, 2011: LINK. BROKEN. ACFT FAILED TO START. NO POWER WITH MASTER TURNED ON. TROUBLE-SHOOTING LED TO MAIN BATTERY VOLTAGE INDICATING 0 VDC ON MULTIMETER. BATTERY REMOVED AND LID OPENE
- [SDR QMLA2011041511047](https://openairdocs.org/sdr/QMLA2011041511047), Apr 15, 2011: GEARBOX. MAKING METAL. PILOT REPORTED A TAIL ROTOR CHIP LIGHT FLICKER AND THE LIGHT WENT ON SOLID AT LANDING. PILOT CALLED THE MECHANIC WHO INSPECTED THE CHIP DETECTOR AND FOUND A CHI
- [SDR CA110408005](https://openairdocs.org/sdr/CA110408005), Apr 6, 2011: WIRE. BROKEN. (CAN) AFTER STARTUP & RUNNING ON FLIGHT IDLE THE HELICOPTER CREW EXPERIENCED A SHAKING & ROCKING IN THE AIRFRAME. CREW SHUTDOWN HELICOPTER WITHOUT INCIDENT & IN
- [SDR CA110406012](https://openairdocs.org/sdr/CA110406012), Apr 4, 2011: CONTROL UNIT. MALFUNCTIONED. (CAN) SHORTLY AFTER ENTERING CRUISE FLIGHT THE PF NOTED A 5% TORQUE SPLIT. THE PF WAS ABLE TO SUCCESSFULLY MATCH THE TORQUES WITH THE COLLECTIVE TRIM SWITCH. A 
- [SDR CA110330005](https://openairdocs.org/sdr/CA110330005), Mar 29, 2011: BLADE. CRACKED. (CAN) UPON MAINTENANCE, THE TAIL ROTOR BLADE OUTER SKIN WAS FOUND CRACKED APPROXIMATELY 2.5" LONG ON A CHORDWISE PLANE-APPROXIMATELY 5.5" FROM THE BLADE ROOT.
- [SDR CA110323007](https://openairdocs.org/sdr/CA110323007), Mar 22, 2011: BLADE. CRACKED. (CAN) SKIN CRACKED 4.25" LONG ON CHORD WISE PLANE, APPROX 5.5" FROM BLADE ROOT.
- [SDR CA110217002](https://openairdocs.org/sdr/CA110217002), Feb 16, 2011: ACTUATOR. FAULTED. CSAS PITCH LIGHT WOULD NOT EXTINGUISH DURING GROUND TEST. PITCH ACTUATOR WAS DETERMINED AT FAULT - WITH CSAS SYS POWERED UP IT WAS POSSIBLE TO MANUALLY EXTEND A
- [SDR 2011FA0000030](https://openairdocs.org/sdr/2011FA0000030), Jan 18, 2011: BEARING. DAMAGED. ENGINE, PREVIOUSLY O/H BY THIS REPAIR STATION AT ENGINE TIME 2351 TSN IN NOV 2009. ENG WAS RETURNED FOR WARRANTY CLAIM OF IT "MAKING METAL". UPON DISASSEMBLY OF

All 350: https://openairdocs.org/engine/alliedsign-lts101-750b-1/reports.md

## STCs that may be installed (OpenAirDocs) (1)

Approved for this engine model: the STC's model list names it on its data sheet, or a series that includes it. In force first, then newest. The registry doesn't record which STCs an aircraft has.

- [STC SE934GL](https://openairdocs.org/stc/SE934GL): Installation of a fuel flow tranducer. Shadin Avionics

## PMA parts (OpenAirDocs) (212, first 50)

Current parts manufacturer approvals (PMA): parts the FAA has approved companies to make as replacements or modifications. Each record lists its models as free text; OpenAirDocs matched them to this engine model on its data sheet, so check the FAA record before relying on it. Newest first.

- [4-131-010-30](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID192455809320241018160209.0001): Liner Assy, Combustion Chamber. Honeywell International Inc. · PMA PQ1222NM · Replaces 4-131-010-30 · Jul 2, 2024
- [4-111-015-19](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID168494359020241018160209.0001): Disk – First Turbine Rotor. Honeywell International Inc. · PMA PQ1222NM · Replaces 4-111-015-19 · Jul 2, 2024
- [4-111-058-06](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID150699376320241018160209.0001): Blade, Turbine Rotor – Stage 1 – Low Flow. Honeywell International Inc. · PMA PQ1222NM · Replaces 4-111-058-06 · Jul 2, 2024
- [4-141-290-30](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID135990764120241018160210.0001): Turbine Rotor. Honeywell International Inc. · PMA PQ1222NM · Replaces 4-141-290-30 · Jul 2, 2024
- [4-111-062-06](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID132122400520241018160209.0001): Disk, Rotor – HP Turbine. Honeywell International Inc. · PMA PQ1222NM · Replaces 4-111-062-06 · Jul 2, 2024
- [4-131-070-04](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID130507704220241018160210.0001): Curl, Comb Chamber Assy. Honeywell International Inc. · PMA PQ1222NM · Replaces 4-131-070-04 · Jul 2, 2024
- [4-111-014-65](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID118223391920241018160208.0001): Blade, Turbine Rotor, Turbine Engine. Honeywell International Inc. · PMA PQ1222NM · Replaces 4-111-014-65 · Jul 2, 2024
- [2539533HT](https://drs.faa.gov/browse/excelExternalWindow/FDF710A0D9BAAADD8625855000632B9C.0001): Bearing, Sintered. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2539533 · Apr 30, 2019
- [951190HT](https://drs.faa.gov/browse/excelExternalWindow/FC8B8869AAFBA24A8625855000632D54.0001): Pin, Sraight, Headless. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 951190 · Apr 30, 2019
- [197498HT](https://drs.faa.gov/browse/excelExternalWindow/F58363F6C29A0E2C8625855000636674.0001): Nut, Self-Locking. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 197498 · Apr 30, 2019
- [2543791HT](https://drs.faa.gov/browse/excelExternalWindow/F497876A15FC19DE8625855000638525.0001): Nut, Plain. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2543791 · Apr 30, 2019
- [2539170HT](https://drs.faa.gov/browse/excelExternalWindow/ED10E7C1F7943A5C862585500063453A.0001): Lever Assembly, CAM Follower Lever. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2539170 · Apr 30, 2019
- [2543598HT](https://drs.faa.gov/browse/excelExternalWindow/ECA18564BCB7E7E0862585500063865B.0001): Bellows Assembly (Governor). HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2543598 · Apr 30, 2019
- [336132HT](https://drs.faa.gov/browse/excelExternalWindow/E07190E2A02F10498625855000636717.0001): Tapered Pin, Split. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 336132 · Apr 30, 2019
- [2537184HT](https://drs.faa.gov/browse/excelExternalWindow/CF0C0BE63149DF618625855000638483.0001): Split Head Ring. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2537184 · Apr 30, 2019
- [2520561HT](https://drs.faa.gov/browse/excelExternalWindow/C93D07A85055A49E86258550006358AA.0001): Roller. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2520561 · Apr 30, 2019
- [2522105HT](https://drs.faa.gov/browse/excelExternalWindow/C831F72FFA3592EE8625855000633FF3.0001): Spacer. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2522105 · Apr 30, 2019
- [2543133HT](https://drs.faa.gov/browse/excelExternalWindow/C1075D8C43C8BBEE8625855000632CB1.0001): Cover Assembly. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2543133 · Apr 30, 2019
- [2523475HT](https://drs.faa.gov/browse/excelExternalWindow/C0E2E0F3CEAF58978625855000632DF6.0001): Gasket. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2523475 · Apr 30, 2019
- [2522102HT](https://drs.faa.gov/browse/excelExternalWindow/BE78A04D762789BA8625855000635942.0001): Pin, Straight, Headless. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2522102 · Apr 30, 2019
- [2523280HT](https://drs.faa.gov/browse/excelExternalWindow/BD2D6F5C8ACE954186258550006329A7.0001): Seat, Valve. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2523280 · Apr 30, 2019
- [2537508HT](https://drs.faa.gov/browse/excelExternalWindow/AB6226D24673A7D586258550006330BA.0001): Washer, Spring Tension. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2537508 · Apr 30, 2019
- [2523237HT](https://drs.faa.gov/browse/excelExternalWindow/A3761C3D79364D138625855000631D0C.0001): Bearing, Ball. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2523237 · Apr 30, 2019
- [2529242HT](https://drs.faa.gov/browse/excelExternalWindow/A0D34607F558EA0D862585500063302A.0001): Spring, Helical, Extension. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2529242 · Apr 30, 2019
- [2520488HT](https://drs.faa.gov/browse/excelExternalWindow/9CC32778DD3467368625855000635816.0001): Gasket. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2520488 · Apr 30, 2019
- [2538982HT](https://drs.faa.gov/browse/excelExternalWindow/9C95C51F6250D76586258550006343F2.0001): Nut. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2538982 · Apr 30, 2019
- [2525104HT](https://drs.faa.gov/browse/excelExternalWindow/984FA7DADBC0CFED8625855000632EF8.0001): Gasket. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2525104 · Apr 30, 2019
- [2520569HT](https://drs.faa.gov/browse/excelExternalWindow/9432CA88F2F1B9128625855000633EBF.0001): Bushing. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2520569 · Apr 30, 2019
- [2543734HT](https://drs.faa.gov/browse/excelExternalWindow/8B394A535BB0AE8E862585500062E3A5.0001): Bearing, Ball. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2543734 · Apr 30, 2019
- [2523282HT](https://drs.faa.gov/browse/excelExternalWindow/889B68627F1BF6D78625855000632A53.0001): Seat, Valve. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2523282 · Apr 30, 2019
- [2523242HT](https://drs.faa.gov/browse/excelExternalWindow/7299489DDD08CEDB8625855000634089.0001): Spacer. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2523242 · Apr 30, 2019
- [2544098HT](https://drs.faa.gov/browse/excelExternalWindow/71F16FBEE8EC06C486258550006368D9.0001): _Bushing, Teflon, Split. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2544098 · Apr 30, 2019
- [2520503HT](https://drs.faa.gov/browse/excelExternalWindow/6FF55BB83A1236CA8625855000631AD3.0001): Bearing, Ball. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2520503 · Apr 30, 2019
- [2539171HT](https://drs.faa.gov/browse/excelExternalWindow/6D2AEB375028C43186258550006345FC.0001): Lever Cam Follower. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2539171 · Apr 30, 2019
- [366783HT](https://drs.faa.gov/browse/excelExternalWindow/6BDB9F5E1EB61600862585500063679B.0001): Washer, Crush. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 366783 · Apr 30, 2019
- [2543226HT](https://drs.faa.gov/browse/excelExternalWindow/5A59E752DA8E60A98625855000632C18.0001): Cover Assembly. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2543226 · Apr 30, 2019
- [2539033HT](https://drs.faa.gov/browse/excelExternalWindow/5120A70C8DA6F753862585500063923A.0001): Shaft Assy., Drive. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2539033 · Apr 30, 2019
- [2523106HT](https://drs.faa.gov/browse/excelExternalWindow/4CC17275E02B523986258550006359D3.0001): Screen. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2523106 · Apr 30, 2019
- [2539179HT](https://drs.faa.gov/browse/excelExternalWindow/4C489B323A9992148625855000632AF7.0001): Bearing, Sintered. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2539179 · Apr 30, 2019
- [2523549HT](https://drs.faa.gov/browse/excelExternalWindow/45FC85266F9461F58625855000632E87.0001): Tube. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2523549 · Apr 30, 2019
- [2543792HT](https://drs.faa.gov/browse/excelExternalWindow/457DF2F181776F0486258550006385AC.0001): Insert Assembly, Carboloy. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2543792 · Apr 30, 2019
- [2537677HT](https://drs.faa.gov/browse/excelExternalWindow/40BC85624A10FBDE8625855000633134.0001): Pin, Straight, Headless. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2537677 · Apr 30, 2019
- [2523333HT](https://drs.faa.gov/browse/excelExternalWindow/3F8DC35D3825035F862585500063411D.0001): Nut. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2523333 · Apr 30, 2019
- [2544028HT](https://drs.faa.gov/browse/excelExternalWindow/3B1E3F42228359F88625855000636835.0001): Ring, Damper, Bellows. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2544028 · Apr 30, 2019
- [2523240HT](https://drs.faa.gov/browse/excelExternalWindow/3999BB6F4232A600862585500063206A.0001): Packing, Preformed O Ring. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2523240 · Apr 30, 2019
- [2537747HT](https://drs.faa.gov/browse/excelExternalWindow/24F79C028AC52BA486258550006331C3.0001): Diaphragm, By-Pass Valve. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2537747 · Apr 30, 2019
- [2529153HT](https://drs.faa.gov/browse/excelExternalWindow/0D41BC0586E5BAF88625855000632F86.0001): Spring, Helical, Extension. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2529153 · Apr 30, 2019
- [2537678HT](https://drs.faa.gov/browse/excelExternalWindow/0B599622025D67ED86258550006342B5.0001): Screw. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2537678 · Apr 30, 2019
- [343698HT](https://drs.faa.gov/browse/excelExternalWindow/075870B02E230B5B862585500063359B.0001): Pin. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 343698 · Apr 30, 2019
- [116115A6](https://drs.faa.gov/browse/excelExternalWindow/61251AE719378D7786258489004290ED.0001): PUMP ASSEMBLY COMPLETE. Triumph Engine Control Systems, LLC · PMA PQ0108NE · Replaces 4-301-377-10 · Mar 20, 2019

All of them: https://openairdocs.org/engine/alliedsign-lts101-750b-1/pma.md

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