# GE CT7 series - Type: Engine model (FAA registry) - Registry codes: 30030, 30158 - Manufacturer (registry): GE - Model: CT7 SERIES · CT7 - Engine type: Turbo-shaft - Power: 1,560 hp - Installed in: 26 registered aircraft - Page: https://openairdocs.org/engine/ge-ct7-series The registry names only the engine series, so ADs for every model in the series are matched. The FAA lists this model under more than one registry code, usually for different spellings of the maker. This page covers them all. ## 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 2025-05-15](https://openairdocs.org/ad/2025-05-15): Engine (Turbine/Turboprop) · General Electric Company GE CT7-2E1. Effective Apr 17, 2025 - [AD 2025-05-02](https://openairdocs.org/ad/2025-05-02): Engine (Turbine/Turboprop) · General Electric CT7-5A2, CT7-5A3, CT7-7A and 8 more. Effective Apr 8, 2025 - [AD 2024-06-51](https://openairdocs.org/ad/2024-06-51): Engine (Turbine/Turboprop); Turbine Section · General Electric CT7-2E1, CT7-2F1, CT7-8A and 2 more. Effective Apr 23, 2024 - [AD 2023-21-07](https://openairdocs.org/ad/2023-21-07): Turbine Engine Reduction Gear · General Electric CT7-5A2, CT7-5A3, CT7-7A and 6 more. Effective Dec 11, 2023 - [AD 2022-18-16](https://openairdocs.org/ad/2022-18-16): Turbine Engine Combustion Section, Turbine Section · General Electric CT7-8A. Effective Oct 7, 2022 - [AD 2017-19-20](https://openairdocs.org/ad/2017-19-20): Turbine Engine Compressor Section · General Electric CT7-8A and CT7-9B. Effective Oct 27, 2017 - [AD 2011-21-17](https://openairdocs.org/ad/2011-21-17): Fuel filter differential pressure switch. · General Electric CT7-8A, CT7-8A1, CT7-8E and 1 more. Effective Nov 17, 2011 - [AD 2011-19-03](https://openairdocs.org/ad/2011-19-03): Accessory gearbox (AGB) · General Electric CT7-8, CT7-8A, CT7-8A1 and 2 more. Effective Nov 9, 2011 - [AD 2010-23-20](https://openairdocs.org/ad/2010-23-20): Gas generator turbine (GGT) shafts · General Electric CT7-9C and CT7-9C3. Effective Dec 22, 2010 - [AD 2008-26-02](https://openairdocs.org/ad/2008-26-02): Electrical chip detectors · General Electric CT7-8A. Effective Jan 26, 2009 - [AD 2007-08-01](https://openairdocs.org/ad/2007-08-01): Eddy current inspection (ECI) of boltholes · General Electric CT7-5A2, CT7-5A3, CT7-7A and 8 more. Effective May 14, 2007 - [AD 2004-16-07](https://openairdocs.org/ad/2004-16-07): Turbine Stage 2 Aft Cooling Plates · General Electric CT7-2D1. Effective Aug 23, 2004 - [AD 2004-07-09](https://openairdocs.org/ad/2004-07-09): PGB oil filter impending bypass button (IBB) · General Electric CT7-2A, CT7-2D, CT7-2D1 and 14 more. Effective May 11, 2004 - [AD 2003-08-52](https://openairdocs.org/ad/2003-08-52): Compressor variable geometry (VG) · General Electric CT7-9B. Effective Jun 2, 2003 - [AD 2002-01-03](https://openairdocs.org/ad/2002-01-03): Stage 2 Turbine Aft Cooling Plates · General Electric CT7-5A2, CT7-5A3, CT7-7A and 1 more. Effective Feb 12, 2002 - [AD 97-25-07](https://openairdocs.org/ad/97-25-07): Stage 1 or 2 Gas Generator Turbine (GGT) Disk · General Electric CT7-5A2, CT7-7A, CT7-9B and 1 more. Effective Jan 28, 1998 - [AD 96-26-01](https://openairdocs.org/ad/96-26-01): GGT Stage 2 Forward Cooling Plate · General Electric CT7-5A2, CT7-7A, CT7-9B and 1 more. Effective Mar 10, 1997 - [AD 94-17-16](https://openairdocs.org/ad/94-17-16): Propeller Gearboxes · General Electric CT7-5A2, CT7-5A3, CT7-7A and 6 more. Effective Sep 15, 1994 - [AD 93-25-17](https://openairdocs.org/ad/93-25-17): Gas Generator Turbine (GGT) Disks and Cooling Plates · General Electric CT7-2A, CT7-5A2, CT7-6 and 2 more. Effective Feb 2, 1994 - [AD 93-23-05](https://openairdocs.org/ad/93-23-05): Gas Generator Turbine (GGT) Rotor Assembly Parts and Power Turbine (PT) Disks · General Electric CT7-5A2 and CT7-7A. Effective Jan 10, 1994 - [AD 88-07-08](https://openairdocs.org/ad/88-07-08): Power Turbine Overspeed · General Electric CT7-5A2. Effective May 9, 1988 Historical (superseded or no longer in force): - [AD 2024-05-51](https://openairdocs.org/ad/2024-05-51) (historical): Turbine Section · General Electric CT7-2E1, CT7-2F1, CT7-8A and 11 more. Effective Apr 1, 2024 - [AD 2018-03-13](https://openairdocs.org/ad/2018-03-13) (historical): Turbine Engine Reduction Gear · General Electric CT7-5A2, CT7-5A3, CT7-7A and 6 more. Effective Feb 28, 2018 - [AD 2006-06-51](https://openairdocs.org/ad/2006-06-51) (historical): Electrical chip detectors for the No. 3 bearing · General Electric CT7-8A. Effective May 2, 2006 - [AD 2005-18-01](https://openairdocs.org/ad/2005-18-01) (historical): Turbine aft cooling plate boltholes · General Electric Aircraft Engines CT7-5A2, CT7-5A3, CT7-7A and 4 more. Effective Oct 24, 2005 - [AD 2003-06-03](https://openairdocs.org/ad/2003-06-03) (historical): Propeller gearbox (PGB) oil filter · General Electric Aircraft Engines CT7-2A, CT7-2D, CT7-2D1 and 14 more. Effective Apr 24, 2003 ## Information bulletins (advisory) (1) - [SAIB ANE-98-31](https://openairdocs.org/saib/ANE-98-31): . Issued May 15, 1998 ## Registered aircraft (26) - [N189EH](https://openairdocs.org/aircraft/N189EH): [Bristow LLC](https://openairdocs.org/faa-owner/BRISTOW%20LLC), [Lake Charles, LA](https://openairdocs.org/faa-place/LA/Lake%20Charles), built 2015, S/N 49018 - [N214EB](https://openairdocs.org/aircraft/N214EB): [Bank Of Utah Trustee](https://openairdocs.org/faa-owner/BANK%20OF%20UTAH%20TRUSTEE), [Salt Lake City, UT](https://openairdocs.org/faa-place/UT/Salt%20Lake%20City), S/N 28130 - [N275ST](https://openairdocs.org/aircraft/N275ST): [Bank Of Utah Trustee](https://openairdocs.org/faa-owner/BANK%20OF%20UTAH%20TRUSTEE), [Salt Lake City, UT](https://openairdocs.org/faa-place/UT/Salt%20Lake%20City), S/N 28106 - [N277ST](https://openairdocs.org/aircraft/N277ST): [Bank Of Utah Trustee](https://openairdocs.org/faa-owner/BANK%20OF%20UTAH%20TRUSTEE), [Salt Lake City, UT](https://openairdocs.org/faa-place/UT/Salt%20Lake%20City), S/N 28140 - [N314SS](https://openairdocs.org/aircraft/N314SS): [Bristow LLC](https://openairdocs.org/faa-owner/BRISTOW%20LLC), [Lake Charles, LA](https://openairdocs.org/faa-place/LA/Lake%20Charles), built 2015, S/N 49019 - [N326LS](https://openairdocs.org/aircraft/N326LS): [Bristow LLC](https://openairdocs.org/faa-owner/BRISTOW%20LLC), [Lake Charles, LA](https://openairdocs.org/faa-place/LA/Lake%20Charles), built 2016, S/N 49028 - [N390AL](https://openairdocs.org/aircraft/N390AL): [Bank Of Utah Trustee](https://openairdocs.org/faa-owner/BANK%20OF%20UTAH%20TRUSTEE), [Salt Lake City, UT](https://openairdocs.org/faa-place/UT/Salt%20Lake%20City), built 1990, S/N 28198 - [N391AL](https://openairdocs.org/aircraft/N391AL): [Bank Of Utah Trustee](https://openairdocs.org/faa-owner/BANK%20OF%20UTAH%20TRUSTEE), [Salt Lake City, UT](https://openairdocs.org/faa-place/UT/Salt%20Lake%20City), S/N 28103 - [N392AL](https://openairdocs.org/aircraft/N392AL): [Bank Of Utah Trustee](https://openairdocs.org/faa-owner/BANK%20OF%20UTAH%20TRUSTEE), [Salt Lake City, UT](https://openairdocs.org/faa-place/UT/Salt%20Lake%20City), built 1982, S/N 28114 - [N392PH](https://openairdocs.org/aircraft/N392PH): [Phi Aviation LLC](https://openairdocs.org/faa-owner/PHI%20AVIATION%20LLC), [Lafayette, LA](https://openairdocs.org/faa-place/LA/Lafayette), built 2005, S/N 920015 - [N393AL](https://openairdocs.org/aircraft/N393AL): [Bank Of Utah Trustee](https://openairdocs.org/faa-owner/BANK%20OF%20UTAH%20TRUSTEE), [Salt Lake City, UT](https://openairdocs.org/faa-place/UT/Salt%20Lake%20City), S/N 28117 - [N492PH](https://openairdocs.org/aircraft/N492PH): [Phi Aviation LLC](https://openairdocs.org/faa-owner/PHI%20AVIATION%20LLC), [Lafayette, LA](https://openairdocs.org/faa-place/LA/Lafayette), S/N 920016 - [N503JW](https://openairdocs.org/aircraft/N503JW): [Bristow LLC](https://openairdocs.org/faa-owner/BRISTOW%20LLC), [Lake Charles, LA](https://openairdocs.org/faa-place/LA/Lake%20Charles), built 2016, S/N 49025 - [N512EV](https://openairdocs.org/aircraft/N512EV): [Bank Of Utah Trustee](https://openairdocs.org/faa-owner/BANK%20OF%20UTAH%20TRUSTEE), [Salt Lake City, UT](https://openairdocs.org/faa-place/UT/Salt%20Lake%20City), built 1983, S/N 28115 - [N525BN](https://openairdocs.org/aircraft/N525BN): [Bell Textron Inc](https://openairdocs.org/faa-owner/BELL%20TEXTRON%20INC), [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth), built 2016, S/N 62003 - [N525BV](https://openairdocs.org/aircraft/N525BV): [Bell Textron Inc](https://openairdocs.org/faa-owner/BELL%20TEXTRON%20INC), [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth), built 2018, S/N 62014 - [N525TY](https://openairdocs.org/aircraft/N525TY): [Bell Textron Inc](https://openairdocs.org/faa-owner/BELL%20TEXTRON%20INC), [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth), built 2019, S/N 62015 - [N592PH](https://openairdocs.org/aircraft/N592PH): [Phi Aviation LLC](https://openairdocs.org/faa-owner/PHI%20AVIATION%20LLC), [Lafayette, LA](https://openairdocs.org/faa-place/LA/Lafayette), S/N 920027 - [N69E](https://openairdocs.org/aircraft/N69E): [Knight Helo LLC](https://openairdocs.org/faa-owner/KNIGHT%20HELO%20LLC), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 2005, S/N 920009 - [N725HT](https://openairdocs.org/aircraft/N725HT): [Bank Of Utah Trustee](https://openairdocs.org/faa-owner/BANK%20OF%20UTAH%20TRUSTEE), [Salt Lake City, UT](https://openairdocs.org/faa-place/UT/Salt%20Lake%20City), built 1984, S/N 28128 - [N726HT](https://openairdocs.org/aircraft/N726HT): [Bank Of Utah Trustee](https://openairdocs.org/faa-owner/BANK%20OF%20UTAH%20TRUSTEE), [Salt Lake City, UT](https://openairdocs.org/faa-place/UT/Salt%20Lake%20City), built 1988, S/N 28196 - [N745H](https://openairdocs.org/aircraft/N745H): [Bank Of Utah Trustee](https://openairdocs.org/faa-owner/BANK%20OF%20UTAH%20TRUSTEE), [Salt Lake City, UT](https://openairdocs.org/faa-place/UT/Salt%20Lake%20City), built 1991, S/N 28197 - [N746H](https://openairdocs.org/aircraft/N746H): [Bank Of Utah Trustee](https://openairdocs.org/faa-owner/BANK%20OF%20UTAH%20TRUSTEE), [Salt Lake City, UT](https://openairdocs.org/faa-place/UT/Salt%20Lake%20City), built 1991, S/N 28200 - [N822H](https://openairdocs.org/aircraft/N822H): [Bank Of Utah Trustee](https://openairdocs.org/faa-owner/BANK%20OF%20UTAH%20TRUSTEE), [Salt Lake City, UT](https://openairdocs.org/faa-place/UT/Salt%20Lake%20City), built 1984, S/N 28139 - [N823H](https://openairdocs.org/aircraft/N823H): [Bank Of Utah Trustee](https://openairdocs.org/faa-owner/BANK%20OF%20UTAH%20TRUSTEE), [Salt Lake City, UT](https://openairdocs.org/faa-place/UT/Salt%20Lake%20City), built 1984, S/N 28141 - [N825H](https://openairdocs.org/aircraft/N825H): [Bank Of Utah Trustee](https://openairdocs.org/faa-owner/BANK%20OF%20UTAH%20TRUSTEE), [Salt Lake City, UT](https://openairdocs.org/faa-place/UT/Salt%20Lake%20City), built 1984, S/N 28137 ## NTSB investigations (6) From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [NTSB GAA26WA270](https://openairdocs.org/ntsb/GAA26WA270), Aug 2, 2026: Bell 214ST (N746H), West Attica, Greece, substantial damage, 2 fatal - [NTSB DCA16FA199](https://openairdocs.org/ntsb/DCA16FA199), Jul 6, 2016: Bell 525 (N525TA), Italy, TX, destroyed, 2 fatal. Probable cause: A severe vibration of the helicopter that led to the crew's inability to maintain sufficient rotor rotation speed (Nr), leading to excessive main rotor blade flapping, subsequent main rotor blade… - [NTSB CEN12LA525](https://openairdocs.org/ntsb/CEN12LA525), Aug 7, 2012: Bell 214ST (N409SB), Avalon, TX, substantial damage. Probable cause: Maintenance personnel’s failure to properly torque the retaining nut and install the cotter pin that secured the helicopter’s tail rotor counterweight bellcrank. Contributing to the accident was the… - [NTSB DCA12FA024](https://openairdocs.org/ntsb/DCA12FA024), Jan 16, 2012: Bell 214 (N5748M), Camp Bastion, Afghanistan, destroyed, 3 fatal. Probable cause: the overtravel of the collective sleeve, which led to a severe and sudden reduction in main rotor blade collective pitch, resulting in a loss of control of the helicopter. The reason for the… - [NTSB SEA07TA214](https://openairdocs.org/ntsb/SEA07TA214), Jul 26, 2007: Bell 214ST (N724HT), McCall, ID, substantial damage. Probable cause: The pilot's inadequate planned approach that led to settling with power. Contributing to the accident was the external load becoming snagged in the water, and the high density altitude. - [NTSB FTW00RA003](https://openairdocs.org/ntsb/FTW00RA003), Oct 2, 1999: Bell 214ST (N704H), Dhahran, Saudi Arabia, 12 fatal ## FAA accident and incident reports (15) From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [Incident 20240703007529I](https://openairdocs.org/incident/20240703007529I), Jul 3, 2024: Leonardo S P A AW189 (N503JW), Houma, LA, No damage. The flight crew was in level flight at 4500 ft, approximately 40 minutes from Houma. At that point, it was observed that the #2 engine oil pressure was… - [Accident 20160706020889A](https://openairdocs.org/incident/20160706020889A), Jul 6, 2016: Bell 525 (N525TA), Italy, TX, Destroyed, 2 fatal. On July 6, 2016, at approximately 1148 central daylight time, an experimental Bell 525 helicopter, registration number N525TA, operating under the provisions… - [Accident 20120807018389A](https://openairdocs.org/incident/20120807018389A), Aug 7, 2012: Bell 214ST (N409SB), Avalon, TX, Substantial damage. Aircraft N409SB departed kgky on a flight test plan for a new rotor system to be installed in the Bell 525. The aircraft was on it's 3rd flight test. They… - [Incident 20110512009199I](https://openairdocs.org/incident/20110512009199I), May 12, 2011: Sikorsky S-92A (N492PH), Houma, LA, No damage. Aircraft was enroute from Houma, LA to thunder horse platfrom in the gulf of Mexico. Approximately 15 miles out, a loud noise from the left hand side of the… - [Accident 20070725015879A](https://openairdocs.org/incident/20070725015879A), Jul 25, 2007: Bell 214ST (N724HT), Loon Lake, ID, Destroyed. (-23) The helicopter was approaching small lake with a 150 ft. log line and bucket attached to its belly. During approach, the pilot believed he was… - [Incident 20001002038489I](https://openairdocs.org/incident/20001002038489I), Oct 2, 2000: Saab SF340A (N991XJ), Elmira, NY. (-23) On Monday, October 2, 2000 at 1207 local time, a Saab 340A aircraft, operated by mesaba aviation, inc d/b/a northwest airlink (mala), under 14 CFR part… - [Incident 19971105043099I](https://openairdocs.org/incident/19971105043099I), Nov 5, 1997: Bell 214ST (N8045T), St295, LA, Minor damage. Narrative: in cruise flight, the copilot's overhead window departed the aircraft. Airspeed and altitude reduced and flight to fourchon, LA continued with no… - [Incident 19970806033309I](https://openairdocs.org/incident/19970806033309I), Aug 6, 1997: Bell 214ST (N746H), Rastanura, SA. Narrative: aramco filed the following statement. Captain jim bob pickrell, after departing ras tanura and leveling off at 500 feet, became erratic. The first… - [Incident 19970205026449I](https://openairdocs.org/incident/19970205026449I), Feb 5, 1997: Bell 214ST (N5748M), Galveston, TX. Narrative: in cruise flight, the left hand hinged window pane departed the aircraft. The frame stayed attached to the window assembly. Hinged window was closed… - [Incident 19951226046599I](https://openairdocs.org/incident/19951226046599I), Dec 26, 1995: Bell 214ST (N8045T), Morgan City, LA, Minor damage. Narrative: on December 26, 1995, at 7:42 CST, a Bell 214st helicopter, operated by petroleum helicopters, inc., experienced an inadvertent inflation of the… - [Incident 19951030041959I](https://openairdocs.org/incident/19951030041959I), Oct 30, 1995: Bell 214ST (N390AL), Gulf Of Mexico, LA. Narrative: while in cruise flight over the Gulf Of Mexico with an indicated airspeed of 130 knots, the flight crew stated that they began to hear a "whooshing"… - [Incident 19950612029359I](https://openairdocs.org/incident/19950612029359I), Jun 12, 1995: Bell 214ST (N5748M), Morgan City, LA. NR2 engine gott hot. Shutdown. Temperature went down. Restarted for landing. Pin 24 on 22J24 grounded. Cleanded. - [Incident 19950410013519I](https://openairdocs.org/incident/19950410013519I), Apr 10, 1995: Bell 214ST (N5748M), Morgan City, LA. Oil cooler blower motor light came on. Switched to alternate system. Landed safely. - [Incident 19941216047219I](https://openairdocs.org/incident/19941216047219I), Dec 16, 1994: Bell 214ST (N391AL), Intercostal, LA. Uncommanded pitchup a roll to left,entered clouds autoflite warning lights. Got control,water soaked. - [Incident 19821220070899I](https://openairdocs.org/incident/19821220070899I), Dec 20, 1982: Bell 214ST (N5736X), Northway, AK, Minor damage. Tail rotor control lost after takeoff.NR1 hydraulic system failed. Veered left into a snowbank on emergency landing. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.