Type Record · As of May 3, 2026
BELL HELICOPTER TEXTRON INC 525
Rotorcraft · GE CT7 SERIES
Registered
3
Year Range
2016–2019
NTSB Events
0
Airworthiness Directives
5
Aircraft Resources
01 / Distribution
Where the fleet lives and was built
Counts of currently-registered BELL HELICOPTER TEXTRON INC 525 aircraft by US state and decade of manufacture, sourced from the FAA Aircraft Registry.
By State (top 10)
- TX 100.0% 3
By Decade of Manufacture
- 2010s 100.0% 3
02 / NTSB Records
Events involving BELL HELICOPTER TEXTRON INC 525 aircraft
No NTSB-recorded events match BELL HELICOPTER TEXTRON INC 525 in the indexed corpus.
02b / NASA ASRS Reports
Near-miss reports involving BELL HELICOPTER TEXTRON INC 525
NASA's voluntary, confidential reporting system surfaces what almost went wrong. 3 de-identified ASRS reports reference this airframe. Pilot-written narrative. ASRS reports are voluntary and not investigated — they represent the reporter's perspective and cannot infer prevalence.
- ACN 1888981 Emergency Medical Service Incidents
Helicopter pilot reported a NMAC with another aircraft that appeared to be intentionally following them.
Bell Helicopter Textron Undifferentiated or Other Model
- ACN 2061581 Maintenance Reports
Helicopter maintenance technicians reported that after scheduled maintenance they learned a pilot discovered during preflight inspection the tail rotor gearbox oil cap was not installed.
Bell Helicopter Textron Undifferentiated or Other Model
- ACN 2045041 Rotary Wing Aircraft Flight Crew Reports
PA28 Flight Instructor reported while on base, they received a TCAS advisory then observed a helicopter pass below them, resulting in a NMAC event.
PA-28 Cherokee/Archer/Dakota/Pillan/Warrior
02c / Academic Research
Scholarly work mentioning BELL HELICOPTER TEXTRON INC 525
Papers and reports across NASA, NTSB, FAA CAMI, AOPA ASI, Embry-Riddle, arXiv, and the broader academic graph that mention this airframe. Title or keyword match — drill into each for full abstract + author list + PDF link.
- NTSB Safety Studies 2019 · Safety study
Bell 525 Relentless In-Flight Breakup
Investigation report and safety study on the 6 July 2016 in-flight breakup of a Bell 525 Relentless helicopter prototype during a developmental flight test near Italy, Texas.
- NTSB Aircraft Accident Reports 2019 · Accident report
In-Flight Breakup of Bell 525 Relentless Helicopter
Bell 525 prototype helicopter in-flight breakup near Italy, TX, July 6, 2016 — 2 fatalities. Investigation of the developmental-flight-test in-flight breakup of a Bell 525 Relentless prototype.
- Embry-Riddle Scholarly Commons 2023 · Conference paper
An Aviator Centered Approach to Mental Health: A Preliminary Look at Stressors, Barriers to Care, and Untreated Aviator Mental Health
The purposeful crash of Germanwings 9525 in March 2015 provided a wake-up call to the aviation community on the ramifications of untreated mental health in commercial aviation.
Browse the full corpus — academia portal ↗
03 / Airworthiness Directives
FAA directives applicable to BELL HELICOPTER TEXTRON INC 525
5 directive(s) on file. Showing the most recent 5.
-
Mar 22, 2022
Airworthiness Directives; Bell Textron Canada Limited (Type Certificate Previously Held by Bell Helicopter Textron Canada Limited) Helicopters
The FAA is superseding Airworthiness Directive (AD) 2020-20- 06, which applied to certain Bell Helicopter Textron Canada Limited (now Bell Textron Canada Limited) Model 429 helicopters. AD 2020-20-06 required repetitive inspections of certain cyclic and collective assembly bearings. This AD was prompted by new bellcra…
-
Jan 14, 2022
Airworthiness Directives; Bell Textron Canada Limited (Type Certificate Previously Held by Bell Helicopter Textron Canada Limited) Helicopters
The FAA proposes to supersede Airworthiness Directive (AD) 2020-20-06, which applies to certain Bell Helicopter Textron Canada Limited (now Bell Textron Canada Limited) Model 429 helicopters. AD 2020-20-06 requires repetitive inspections of certain cyclic and collective assembly bearings. Since the FAA issued AD 2020-…
-
Sep 25, 2020
Airworthiness Directives; Bell Helicopter Textron Canada Limited Helicopters
The FAA is adopting a new airworthiness directive (AD) for Bell Helicopter Textron Canada Limited (BHTC) Model 429 helicopters. This AD requires repetitive inspections of certain cyclic and collective assembly bearings. This AD was prompted by reports that precipitation can lead to reduced effectiveness of the grease…
-
Mar 20, 2020
Airworthiness Directives; Bell Helicopter Textron Canada Limited Helicopters
The FAA proposes to adopt a new airworthiness directive (AD) for Bell Helicopter Textron Canada Limited (BHTC) Model 429 helicopters. This proposed AD would require repetitive inspections of certain cyclic and collective assembly bearings. This proposed AD is prompted by reports that precipitation can lead to reduced…
-
Jun 7, 2013
Airworthiness Directives; Bell Helicopter Textron Canada Limited (Bell) Helicopters
We propose to adopt a new airworthiness directive (AD) for certain Bell Model 206L-3 and 206L-4 helicopters. This proposed AD would require installing a placard beneath the engine power dual tachometer and revising the limitations section of the rotorcraft flight manual (RFM). This proposed AD is prompted by several i…
04 / Type Certificate Data Sheets
FAA TCDS for BELL HELICOPTER TEXTRON INC 525
The TCDS is the legal certification document — weight limits, performance, equipment, AD compliance times, operating limitations. 1 match in the FAA catalog.
- A1WI Historical Rev 22 · 12/20/2013
Cessna Aircraft Company
Models: 525, 525C, 525A, 525B
06 / Supplemental Type Certificates
Modifications approved for BELL HELICOPTER TEXTRON INC 525
106 STCs on file — every FAA-approved modification, alteration, or installation for this aircraft. STOL kits, avionics, fuel systems, floats, engine swaps, you name it.
-
03/30/2026
STC SA04750NY
Installation of the Electric Flushing Toilet and External Service Panel
Skyway Group Inc.
-
03/25/2026
STC SA12345IB
Replacement of the Halon Type 1211 portable fire extinguisher with the Halotron BrX portable fire extinguisher
Cessna Duesseldorf Citation Service Center GmbH
-
02/03/2026
STC SA02017WI
The Installation of the Parker-Meggitt iPRESS™ System
3S Certification LLC
-
01/16/2026
STC SA12014LA
Installation of aluminum and fiberglass wheel covers
Premiere-Aviation Inc.
-
11/05/2025
STC SA04619CH
INSTALL SMARTSKY LITE SYSTEM
Apcela IFC JV, LLC dba Apcela ATG
-
10/29/2025
STC SA11222DS
Installation of automatic dependent surveillance- broadcast( ADS-B) Out
BHE & Associates Ltd.
-
10/28/2025
STC SA11158SC
Demonstration of aircraft tolerance to potential electromagnetic interference from certain Transmitting Potable Electronic Devices (T-PEDS)
Liberty Partners Inc.
-
08/15/2025
STC SA01844WI
Installation of Garmin GFC 600 Automatic Flight Control System
Garmin International Inc.
-
06/03/2025
STC SA11300DS
Upgrade previously installed Collins Aerospace Radar Altimeter
BHE & Associates Ltd.
-
05/27/2025
STC SA12030NY
Installation of the position/anti-collision LED lights and LED beacon light
Sterling Helicopter
-
04/21/2025
STC SA11301DS
Installation of an AirSync flight data monitoring system
BHE & Associates Ltd.
-
03/24/2025
STC SA09887AC
Installation of an Avionica MK-III mini Quick Access Recorder (QAR) and optional 4G or LTE Avionica\nCellular Module (avCM
Aircraft Systems and Manufacturing Inc.
-
01/17/2025
STC SA11874LA
Installation of Collins Iridium Certus Satcom
Q.C.M. Design GmbH
-
11/07/2024
STC SA11301DS
Installation of an AirSync flight data monitoring system
BHE & Associates Ltd.
-
09/20/2024
STC SA01848WI
Modification of a Rockwell Collins Global Positioning System (GPS)
Rockwell Collins Inc.
-
09/13/2024
STC SA01844WI
Installation of Garmin GFC 600 Automatic Flight Control System
Garmin International Inc.
-
08/27/2024
STC SA04837NY
Installation of AeroLED's Holdings, LLC., position lights, navigation lights, strobe lights and beacon lights
AeroLED's Holdings, LLC
-
07/18/2024
STC SA04619CH
INSTALL SMARTSKY LITE SYSTEM
LIBERTY PARTNERS INC.
-
07/12/2024
STC SA00209IB
Installation of Single Garmin GTN 725(Xi)/GTN 750 (Xi) Unit and optional Garmin Flight Stream FS 510
AVIONIK STRAUBING ENTWICKLUNGS GmbH
-
05/28/2024
STC SA04051CH
Certification of Automatic Dependent Surveillance - Broadcast (ADS-B) Out System with Rockwell Collins TDR-94/-94D Transponders
CMD Flight Solutions LLC
-
03/05/2024
STC SA03316CH
Activation of an 802.11 a/b/g/n WiFi System
Elliott Aviation Technical Products Development Inc.
-
02/02/2024
STC SA02658SE (2 OF 2)
Installation of Garmin GI 275 Multi-Function Display System
Garmin International Inc.
-
09/15/2023
STC SA11219SC
Installation of a Rockwell Collins Pro Line Fusion ® embedded display system (EDS) with updated flight recorder data outputs for interface with the Digital Flight Data Recorder (D…
BHE & Associates LTD
-
09/08/2023
STC SA11158SC
Demonstration of aircraft tolerance to potential electromagnetic interference from certain Transmitting Potable Electronic Devices (T-PEDS)
Liberty Partners Inc.
-
06/23/2023
STC SA01844WI
Installation of Garmin GFC 600 Automatic Flight Control System
Garmin International Inc.
-
06/22/2023
STC SA00120IB
Installation of the Universal Kapture Cockpit Voice Recorder (CVR) with Recorder Independent Power Supply (RIPS)
Avmax Aviation Services Inc.
-
06/16/2023
STC SA11219SC
Installation of a Rockwell Collins Pro Line Fusion ® embedded display system (EDS) with updated flight recorder data outputs for interface with the Digital Flight Data Recorder (D…
BHE & Associates LTD
-
03/06/2023
STC SA02010WI
Installation of the Mid-Continent Instruments & Avionics MD23 FLEX Custom Function Display (CFD)
Mid-Continent Instruments and Avionics
-
03/01/2023
STC SA10245SC
Installation of Heads Up Technologies, Inc. XM 400 Radio Receiver and Antenna System
Heads Up Technologies Inc.
-
01/30/2023
STC SA00093IB
Installation of the provisions for wireless connection of a PED/EFB to Garmin G3000 avionics via Garmin FS-510
CESSNA DUESSELDORF CITATION
+ 76 more STCs on file
07 / PMA replacement parts
FAA-approved replacement parts for BELL HELICOPTER TEXTRON INC 525
60+ parts on file from the FAA Parts Manufacturer Approval database. Each is a non-OEM part the FAA has authorized for use as a replacement on this aircraft type.
-
HEM6519519-26#https://drs.faa.gov/browse/excelExternalWindow/E45AC4B153D9B6578625841D00571141.0001##
Bearing
Hemico Inc replaces 6519519-26
PMA holder → -
HEM6519519-26#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID129852682520250307153902.0001##
Bearing
Hemico Inc replaces 6519519-26
PMA holder → -
HEM6519519-26#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID203001326202110251213430.0001##
Bearing
Hemico Inc replaces 6519519-26
PMA holder → -
300SGL1103-8EH#https://drs.faa.gov/browse/excelExternalWindow/CF5E97FD57EEB953862582DA0071A672.0001##
Shaft, Drive Assembly
Seginus Inc replaces Skurka 300SGL1103-8
PMA holder → -
SK2222#https://drs.faa.gov/browse/excelExternalWindow/E70B92B2BB3A9597862582D300748331.0001##
Radome Boot
Skandia, Inc. replaces Modification Part
PMA holder → -
996-0401-10#https://drs.faa.gov/browse/excelExternalWindow/A506C36B2DCDC011862581AE0077E736.0001##
LCD DISPLAY MODULE
Optical Display Engineering replaces 996-0401-08, 40-647-631
PMA holder → -
996-0401-10#https://drs.faa.gov/browse/excelExternalWindow/14F0E5A17600F6288625818A006F01F2.0001##
LCD DISPLAY MODULE
Optical Display Engineering replaces 996-0401-08 40-476-631
PMA holder → -
598-01-0203-049#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID100575774020211209184039.0001##
Assembly-Cabin Harness
B/E Aerospace Inc replaces 598-01-0203-049
PMA holder → -
101-00-0000#https://drs.faa.gov/browse/excelExternalWindow/6C0C0B9CFC4B8AD1862580E90077AE11.0001##
Cessna 525 Winglet and ATLAS Modification
Tamarack Aerospace Group, Inc. replaces 101-00-0000
PMA holder → -
101-00-0000#https://drs.faa.gov/browse/excelExternalWindow/EF5834E62BFAA1D086258570004DBB13.0001##
Cessna525 Winglet ATLAS Modification
Tamarack Aerospace Group, Inc. replaces 101-00-0000
PMA holder → -
810-0315-362#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID492690487920210723191116.0001##
Data Link Communication Application (DLCA_6500)
Rockwell Collins Inc. replaces 810-0315-362
PMA holder → -
APS93-909-1#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID127254395420250131173807.0001##
Wear Pad
Aviation Products Systems Inc replaces 93-909-1
PMA holder → -
1201-4000-01#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID134353505620240509162212.0001##
L/R Deviation Converter
JETTECH, LLC replaces Modification Article
PMA holder → -
APS170-231#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID150949029420240223153720.0001##
Insert
Aviation Products Systems Inc replaces 170-231
PMA holder → -
1201-4000-01#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID187821919420220511224722.0001##
L/R Deviation Converter
JETTECH LLC replaces Modification Part
PMA holder → -
598-01-0205-005#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID990322544220211209184108.0001##
GPS #2 Harness
B/E Aerospace Inc replaces 598-01-0205-005
PMA holder → -
598-01-0203-073#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID815004520220211209184048.0001##
Assembly-Cabin Harness
B/E Aerospace Inc replaces 598-01-0203-073
PMA holder → -
598-01-0206-015#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID912648979320211209184115.0001##
3rd VHF Comm Harness
B/E Aerospace Inc replaces 598-01-0206-015
PMA holder → -
598-01-0203-103#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID980345962020211209184100.0001##
Assembly-Cabin Harness
B/E Aerospace Inc replaces 598-01-0203-103
PMA holder → -
598-01-0011-001#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID233819358420211209184126.0001##
Installation-No. 2 GPS
B/E Aerospace Inc replaces 598-01-0011-001
PMA holder → -
598-01-0203-061#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID381898768120211209184044.0001##
Assembly-Cabin Harness
B/E Aerospace Inc replaces 598-01-0203-061
PMA holder → -
598-01-0208-001#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID867288282820211209184120.0001##
DBU Harness
B/E Aerospace Inc replaces 598-01-0208-001
PMA holder → -
598-01-0203-093#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID878350625320211209184056.0001##
Assembly-Cabin Harness
B/E Aerospace Inc replaces 598-01-0203-093
PMA holder → -
598-01-0203-097#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID265687133420211209184058.0001##
Assembly-Cabin Harness
B/E Aerospace Inc replaces 598-01-0203-097
PMA holder → -
598-01-0203-051#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID727763048720211209184040.0001##
Assembly-Cabin Harness
B/E Aerospace Inc replaces 598-01-0203-051
PMA holder → -
598-01-0203-003#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID153321924120211209184020.0001##
Assembly-Cabin Harness
B/E Aerospace Inc replaces 598-01-0203-003
PMA holder → -
598-01-0203-071#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID865785033120211209184048.0001##
Assembly-Cabin Harness
B/E Aerospace Inc replaces 598-01-0203-071
PMA holder → -
598-01-0203-063#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID628889814520211209184044.0001##
Assembly-Cabin Harness
B/E Aerospace Inc replaces 598-01-0203-063
PMA holder → -
598-01-0206-003#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID628615590320211209184111.0001##
3RD VHF Comm Harness
B/E Aerospace Inc replaces 598-01-0206-003
PMA holder → -
598-01-0203-013#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID622578875320211209184024.0001##
Assembly-Cabin Harness
B/E Aerospace Inc replaces 598-01-0203-013
PMA holder → -
598-01-0203-101#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID691125505820211209184059.0001##
Assembly-Cabin Harness
B/E Aerospace Inc replaces 598-01-0203-101
PMA holder → -
598-01-0203-033#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID790083533420211209184032.0001##
Assembly-Cabin Harness
B/E Aerospace Inc replaces 598-01-0203-033
PMA holder → -
598-01-0203-011#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID584558519202112091840240.0001##
Assembly-Cabin Harness
B/E Aerospace Inc replaces 598-01-0203-011
PMA holder → -
598-01-0203-069#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID740475178202112091840470.0001##
Assembly-Cabin Harness
B/E Aerospace Inc replaces 598-01-0203-069
PMA holder → -
598-01-0203-077#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID827440729720211209184050.0001##
Assembly-Cabin Harness
B/E Aerospace Inc replaces 598-01-0203-077
PMA holder → -
598-01-0203-057#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID919767431020211209184042.0001##
Assembly-Cabin Harness
B/E Aerospace Inc replaces 598-01-0203-057
PMA holder → -
598-01-0203-001#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID375679924320211209184019.0001##
Assembly-Cabin Harness
B/E Aerospace Inc replaces 598-01-0203-001
PMA holder → -
598-01-0203-081#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID805726633320211209184052.0001##
Assembly-Cabin Harness
B/E Aerospace Inc replaces 598-01-0203-081
PMA holder → -
598-01-0203-079#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID643845416620211209184051.0001##
Assemby-Cabin Harness
B/E Aerospace Inc replaces 598-01-0203-079
PMA holder → -
598-01-0206-007#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID642680716420211209184112.0001##
3RD VHF Comm Harness
B/E Aerospace Inc replaces 598-01-0206-007
PMA holder →
+ 20 more PMA parts on file
08 / Special Conditions
Type-specific airworthiness rules for BELL HELICOPTER TEXTRON INC 525
2 Special Conditions on file. Issued under 14 CFR 21.16 when this type's design features fall outside the applicable airworthiness regulations and require a tailored standard.
-
29-057-SC
08/22/2024 →Special Conditions: Bell Textron Inc. (Bell) Model 525 Helicopter; Static Longitudinal Stability Compliance
Parts 29, 21, 11, 34, 36
-
29-054-SC
01/28/2021 →Special Conditions: Bell Textron Inc., Model 525 Helicopter; Fly-By-Wire (FBW) \nFlight Control System (FCS)
Part 29
09 / Equivalent Level of Safety findings
ELOS findings issued for BELL HELICOPTER TEXTRON INC 525
1 ELOS finding on file. The FAA issues an ELOS when an applicant proposes an alternative means that achieves the same safety outcome as a literal regulation — a standing record of which certification deviations the agency has approved for this model series.
-
ST1964DRB-A-P-1
04/23/2020 →Electronic Engine Control Systems, Powerplant Engine Display
§ 23.1305, 23.1311, 23.1337, 23.1549…
04 / Regulations watching this type
Advisory Circulars and Federal Register activity for BELL HELICOPTER TEXTRON INC 525
Advisory Circulars
No ACs explicitly mention this type. Showing universal operating-rule ACs that apply to all aircraft.
Recent Federal Register activity
Latest rulemakings touching general operating rules (Part 91) and maintenance rules (Part 43).
- 2026-04-17 Settlement Policy for Small Unmanned Aircraft System (UAS) Cases FR ↗
- 2026-02-10 Normalizing Unmanned Aircraft Systems Beyond Visual Line of Sight Operations; Reopening of Comment Period; Denial of Extension FR ↗
- 2026-02-02 25-Hour Cockpit Voice Recorder (CVR) Requirement, New Aircraft Production FR ↗
- 2026-01-28 Normalizing Unmanned Aircraft Systems Beyond Visual Line of Sight Operations; Reopening of Comment Period FR ↗
- 2026-01-07 Requirements for Interference-Tolerant Radio Altimeter Systems FR ↗
05 / Aircraft of this type
All 3 registered N-numbers
Every tail currently on the FAA registry for this make/model. Click an N-number to query the FAA Aircraft Inquiry; rows flagged ● have NTSB events on file. Tails seeded with full TallyAero pages link directly.
05 / Sources & Methodology
Every count traces back to a primary US-government source
- FAA Aircraft Registry →
Refreshed Apr 27, 2026
Available
- NTSB CAROL →
Refreshed Apr 27, 2026
Available
- Federal Register (FAA Airworthiness Directives) →
Refreshed Apr 27, 2026
Available
We render counts and lists as the agency publishes them. Read the methodology →