# STC SR02470AK - Type: Supplemental type certificate - Status: Current, Amended - Holder: ADS-B Technologies, LLC, United States - Description: Installation of the L-3 Communications NGT -1000/2000/2500 ADS-B System - Applied: August 8, 2015 - Status date: March 4, 2016 - Product: Aircraft, Rotorcraft - Certification basis: Part 21, Part 27 - Data sheets: [TCDS H3EU](https://openairdocs.org/tcds/H3EU), [TCDS H88EU](https://openairdocs.org/tcds/H88EU), [TCDS H9EU](https://openairdocs.org/tcds/H9EU), [TCDS H11EU](https://openairdocs.org/tcds/H11EU), [TCDS R0001RD](https://openairdocs.org/tcds/R0001RD), [TCDS H6EU](https://openairdocs.org/tcds/H6EU), [TCDS H2SW](https://openairdocs.org/tcds/H2SW), [TCDS R00001RC](https://openairdocs.org/tcds/R00001RC), [TCDS H1CE](https://openairdocs.org/tcds/H1CE), [TCDS H2CE](https://openairdocs.org/tcds/H2CE), [TCDS H3WE](https://openairdocs.org/tcds/H3WE), [TCDS H5EA](https://openairdocs.org/tcds/H5EA), [TCDS H10WE](https://openairdocs.org/tcds/H10WE), [TCDS H11NM](https://openairdocs.org/tcds/H11NM), [TCDS R00015LA](https://openairdocs.org/tcds/R00015LA), [TCDS H-1](https://openairdocs.org/tcds/H-1), [TCDS 2H3](https://openairdocs.org/tcds/2H3), [TCDS 2H1](https://openairdocs.org/tcds/2H1), [TCDS H7SW](https://openairdocs.org/tcds/H7SW), [TCDS 6H1](https://openairdocs.org/tcds/6H1) and 3 more - Certificate PDF: https://openairdocs.org/files/sha256/5d/d9/5dd90f1d00062453ac74b5cf6c983ee1d3b8dcc111f781b1329e4f2ce918a009 - Approved model list and other attachments: [AML_SR02470AK.pdf](https://openairdocs.org/files/sha256/24/7f/247f91afe169fb7c5e8b14506aab4b4f3c4ca688a979266d4fb067849ab3ab46) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/384721147135150F86257F6F0065B4D5.0001 - DRS record last changed: December 6, 2025 - Page: https://openairdocs.org/stc/SR02470AK ## ADs that name it (0) None. ## Approved models (88, first 50) - Airbus Helicopters AS-350B ([TCDS H9EU](https://openairdocs.org/tcds/H9EU)) - Airbus Helicopters AS-350B1 ([TCDS H9EU](https://openairdocs.org/tcds/H9EU)) - Airbus Helicopters AS-350B2 ([TCDS H9EU](https://openairdocs.org/tcds/H9EU)) - Airbus Helicopters AS-350B3 ([TCDS H9EU](https://openairdocs.org/tcds/H9EU)) - Airbus Helicopters AS-350BA ([TCDS H9EU](https://openairdocs.org/tcds/H9EU)) - Airbus Helicopters AS-350C ([TCDS H9EU](https://openairdocs.org/tcds/H9EU)) - Airbus Helicopters AS-350D ([TCDS H9EU](https://openairdocs.org/tcds/H9EU)) - Airbus Helicopters AS-350D1 ([TCDS H9EU](https://openairdocs.org/tcds/H9EU)) - Airbus Helicopters AS355E ([TCDS H11EU](https://openairdocs.org/tcds/H11EU)) - Airbus Helicopters AS355F ([TCDS H11EU](https://openairdocs.org/tcds/H11EU)) - Airbus Helicopters AS355F1 ([TCDS H11EU](https://openairdocs.org/tcds/H11EU)) - Airbus Helicopters AS355F2 ([TCDS H11EU](https://openairdocs.org/tcds/H11EU)) - Airbus Helicopters AS355N ([TCDS H11EU](https://openairdocs.org/tcds/H11EU)) - Airbus Helicopters AS355NP ([TCDS H11EU](https://openairdocs.org/tcds/H11EU)) - Airbus Helicopters EC 130 B4 ([TCDS H9EU](https://openairdocs.org/tcds/H9EU)) - Airbus Helicopters EC 130 T2 ([TCDS H9EU](https://openairdocs.org/tcds/H9EU)) - Airbus Helicopters EC120B ([TCDS R0001RD](https://openairdocs.org/tcds/R0001RD)) - Airbus Helicopters SA341G ([TCDS H6EU](https://openairdocs.org/tcds/H6EU)) - Airbus Helicopters Deutschland GmbH BO-105C ([TCDS H3EU](https://openairdocs.org/tcds/H3EU)) - Airbus Helicopters Deutschland GmbH BO-105LS A-3 ([TCDS H3EU](https://openairdocs.org/tcds/H3EU)) - Airbus Helicopters Deutschland GmbH BO-105S ([TCDS H3EU](https://openairdocs.org/tcds/H3EU)) - Airbus Helicopters Deutschland GmbH EC135 P1 ([TCDS H88EU](https://openairdocs.org/tcds/H88EU)) - Airbus Helicopters Deutschland GmbH EC135 P2 ([TCDS H88EU](https://openairdocs.org/tcds/H88EU)) - Airbus Helicopters Deutschland GmbH EC135 P2+ ([TCDS H88EU](https://openairdocs.org/tcds/H88EU)) - Airbus Helicopters Deutschland GmbH EC135 T1 ([TCDS H88EU](https://openairdocs.org/tcds/H88EU)) - Airbus Helicopters Deutschland GmbH EC135 T2 ([TCDS H88EU](https://openairdocs.org/tcds/H88EU)) - Airbus Helicopters Deutschland GmbH EC135 T2+ ([TCDS H88EU](https://openairdocs.org/tcds/H88EU)) - Bell Helicopter Textron Canada Limited 206B ([TCDS H2SW](https://openairdocs.org/tcds/H2SW)) - Bell Helicopter Textron Canada Limited 206L ([TCDS H2SW](https://openairdocs.org/tcds/H2SW)) - Bell Helicopter Textron Canada Limited 206L-1 ([TCDS H2SW](https://openairdocs.org/tcds/H2SW)) - Bell Helicopter Textron Canada Limited 206L-3 ([TCDS H2SW](https://openairdocs.org/tcds/H2SW)) - Bell Helicopter Textron Canada Limited 206L-4 ([TCDS H2SW](https://openairdocs.org/tcds/H2SW)) - Bell Helicopter Textron Canada Limited 407 ([TCDS H2SW](https://openairdocs.org/tcds/H2SW)) - Bell Helicopter Textron Canada Limited 427 ([TCDS R00001RC](https://openairdocs.org/tcds/R00001RC)) - Isenberg Wilbur M. OH-13E ([TCDS H2CE](https://openairdocs.org/tcds/H2CE)) - MD Helicopters Inc. 369D ([TCDS H3WE](https://openairdocs.org/tcds/H3WE)) - MD Helicopters Inc. 369E ([TCDS H3WE](https://openairdocs.org/tcds/H3WE)) - MD Helicopters Inc. 369FF ([TCDS H3WE](https://openairdocs.org/tcds/H3WE)) - MD Helicopters Inc. 369H ([TCDS H3WE](https://openairdocs.org/tcds/H3WE)) - MD Helicopters Inc. 369HM ([TCDS H3WE](https://openairdocs.org/tcds/H3WE)) - MD Helicopters Inc. 500N ([TCDS H3WE](https://openairdocs.org/tcds/H3WE)) - MD Helicopters Inc. 600N ([TCDS H3WE](https://openairdocs.org/tcds/H3WE)) - Pegasus Rotorcraft Limited 2/180 ([TCDS H5EA](https://openairdocs.org/tcds/H5EA)) - Robinson Helicopter Company R22 ([TCDS H10WE](https://openairdocs.org/tcds/H10WE)) - Robinson Helicopter Company R44 ([TCDS H11NM](https://openairdocs.org/tcds/H11NM)) - Robinson Helicopter Company R44 II ([TCDS H11NM](https://openairdocs.org/tcds/H11NM)) - Robinson Helicopter Company R66 ([TCDS R00015LA](https://openairdocs.org/tcds/R00015LA)) - Scotts-Bell 47 Inc 47 ([TCDS H-1](https://openairdocs.org/tcds/H-1)) - Scotts-Bell 47 Inc 47B ([TCDS H-1](https://openairdocs.org/tcds/H-1)) - Scotts-Bell 47 Inc 47B3 ([TCDS H-1](https://openairdocs.org/tcds/H-1)) All 88: https://openairdocs.org/stc/SR02470AK/models.md ## What the certificate says Read from the PDF's text layer, without the form's printed wording; the layout is lost and the order can differ. The PDF is the record. FAA Form 8110-2(10-68) Page 1 of 3 Number SR02470AK This Certificate issued to ADS-B Technologies, LLC 900 Merrill Field Drive Anchorage, Alaska 99501 Part 27 of the Federal Aviation Regulations. Installation of the L-3 Communications NGT -1000/2000/2500 ADS-B System in accordance with Lynx NGT - 1000/2000/2500 and CP2500 Rotorcraft Installation Manual, L3-87-IM, Revision 1, dated February 5, 2016, or later FAA approved revision. 1) The installer must determine whether this design change is compatible with previously approved modifications. 2) If the holder agrees to permit another person to use this Certificate to alter the product, the holder shall give the other person written evidence of that permission. 3) Installation requires prior FAA approved antenna installation for Global Positioning antenna, Universal Access Transceiver antenna and 1090 megahertz antenna. Date of application: August 8, 2015 : Date of issuance: February 16, 2016 *Refer to FAA Approved Model List (AML), Number SR02470AK, dated February 16, 2016, or later FAA approved revision, for airplane makes and models, corresponding Type Certificate numbers, and applicable airworthiness regulations. Date amended: March 4, 2016 (Signature) August A. Asay Manager, Anchorage Aircraft Certification Office (Title) FAA Form 8110-2-1(10-68) Page 3 of 3 4) Rotorcraft Flight Manual Supplement or Supplemental Flight Manual, L3-87-RFMS1, Revision 0, dated February 16, 2016 is required to be carried on the rotorcraft as part of the NGT -1000 installation or L3-87-RFMS2, Revision 0, dated February 16, 2016, as part of the NGT-2000/2500 installation or later FAA approved revisions. 5) For Instructions for Continued Airworthiness, refer to Document Number L3-87-ICA, revision 1, dated February 12, 2016, or later FAA approved/accepted revision. Number SR02470AK ### AML_SR02470AK.pdf United States Of America Department of Transportation - Federal Aviation Administration ADS-B Technologies, LLC Approved Model List (AML) 900 Merrill Field Drive Number SR02470AK Anchorage, Alaska 99501 Date of Issuance: February 16, 2016 Approved Model List for the L-3 Communications Avionics Systems NGT-1000, NGT-2000, and NGT-2500 MULTILINK SURVEILLANCE SYSTEM on Part 27 (and predecessor regulations) Rotorcraft. No TC HOLDER TCDS TCDS REV TCDS **REV DATE MODELS** **CERTIFICATION BASIS** **INSTALLATION INSTRUCTIONS** **SERIES / DATE** **INSTRUCTIONS FOR** **CONTINUED AIRWORTHINESS** **AFM SUPPLEMENT** **NUMBER / DATE** Page 1 of 4 **1 AIRBUS HELICOPTERS R0001RD** 4 1/10/14 **EC120B FAR 27, FAR 36** NGT-1000/2000/2500 Installation Instructions, Doc No. L3-87-IM, or later FAA approved revisions NGT-1000/2000/2500 Instructions for Continued Airworthiness, Doc No. L3-87- ICA, or later FAA approved revisions NGT-1000/2000/2500 Pilot's Guide and AFM Supplements, Doc No. L3- 87-RFMS1/2, or later FAA approved revisions 2 AIRBUS HELICOPTERS H6EU 6 1/10/14 SA341G **FAR 21, FAR 27** NGT-1000/2000/2500 Installation Instructions, Doc No. L3-87-IM, or later FAA approved revisions NGT-1000/2000/2500 Instructions for Continued Airworthiness, Doc No. L3-87- ICA, or later FAA approved revisions NGT-1000/2000/2500 Pilot's Guide and AFM Supplements, Doc No. L3- 87-RFMS1/2, or later FAA approved revisions 3 AIRBUS HELICOPTERS H88EU 9 2/18/14 EC135P1, EC135T1, EX135P2, EX135T2, EC135P2+, EX135T2+ **FAR 21, FAR 27, FAR 36** NGT-1000/2000/2500 Installation Instructions, Doc No. L3-87-IM, or later FAA approved revisions NGT-1000/2000/2500 Instructions for Continued Airworthiness, Doc No. L3-87- ICA, or later FAA approved revisions NGT-1000/2000/2500 Pilot's Guide and AFM Supplements, Doc No. L3- 87-RFMS1/2, or later FAA approved revisions 4 AIRBUS HELICOPTERS H11EU 11 1/10/14 AS355E, AS355F, AS355F1, AS355F2, AS355N, AS355NP **FAR 27, FAR 36** NGT-1000/2000/2500 Installation Instructions, Doc No. L3-87-IM, or later FAA approved revisions NGT-1000/2000/2500 Instructions for Continued Airworthiness, Doc No. L3-87- ICA, or later FAA approved revisions NGT-1000/2000/2500 Pilot's Guide and AFM Supplements, Doc No. L3- 87-RFMS1/2, or later FAA approved revisions 5 AIRBUS HELICOPTERS H9EU 23 11/18/14 EC130B4, EX130T2, AS350B, AS350C, AS350B1, AS350B2, AS350B3, AS350BA, AS350D, AS350D1 **FAR 21, FAR 27** NGT-1000/2000/2500 Installation Instructions, Doc No. L3-87-IM, or later FAA approved revisions NGT-1000/2000/2500 Instructions for Continued Airworthiness, Doc No. L3-87- ICA, or later FAA approved revisions NGT-1000/2000/2500 Pilot's Guide and AFM Supplements, Doc No. L3- 87-RFMS1/2, or later FAA approved revisions 6 AIRBUS HELICOPTERS H3EU 23 2/18/14 BO-105C, BO-105S, BO-105LS-A-3 **FAR 21, FAR 27** NGT-1000/2000/2500 Installation Instructions, Doc No. L3-87-IM, or later FAA approved revisions NGT-1000/2000/2500 Instructions for Continued Airworthiness, Doc No. L3-87- ICA, or later FAA approved revisions NGT-1000/2000/2500 Pilot's Guide and AFM Supplements, Doc No. L3- 87-RFMS1/2, or later FAA approved revisions United States Of America Department of Transportation - Federal Aviation Administration ADS-B Technologies, LLC Approved Model List (AML) 900 Merrill Field Drive Number SR02470AK Anchorage, Alaska 99501 Date of Issuance: February 16, 2016 Approved Model List for the L-3 Communications Avionics Systems NGT-1000, NGT-2000, and NGT-2500 MULTILINK SURVEILLANCE SYSTEM on Part 27 (and predecessor regulations) Rotorcraft. No TC HOLDER TCDS TCDS REV TCDS **REV DATE MODELS** **CERTIFICATION BASIS** **INSTALLATION INSTRUCTIONS** **SERIES / DATE** **INSTRUCTIONS FOR** **CONTINUED AIRWORTHINESS** **AFM SUPPLEMENT** **NUMBER / DATE** Page 2 of 4 **7 BELL TEXTRON CANADA** R00001RC 4 6/27/06 **FAR 27** NGT-1000/2000/2500 Installation Instructions, Doc No. L3-87-IM, or later FAA approved revisions NGT-1000/2000/2500 Instructions for Continued Airworthiness, Doc No. L3-87- ICA, or later FAA approved revisions NGT-1000/2000/2500 Pilot's Guide and AFM Supplements, Doc No. L3- 87-RFMS1/2, or later FAA approved revisions 8 BELL TEXTRON CANADA H-1 42 6/3/10 47, 47B, 47B3, 47D, 47E, 47G-2A, 47G- 2A-1, 47H-1 **CAR 6** NGT-1000/2000/2500 Installation Instructions, Doc No. L3-87-IM, or later FAA approved revisions NGT-1000/2000/2500 Instructions for Continued Airworthiness, Doc No. L3-87- ICA, or later FAA approved revisions NGT-1000/2000/2500 Pilot's Guide and AFM Supplements, Doc No. L3- 87-RFMS1/2, or later FAA approved revisions 9 BELL TEXTRON CANADA H25W 48 1/7/15 206B, 206L, 206L-1, 206L-3, 206L-4, 407 **FAR 21.29, CAR 6, FAR 27** NGT-1000/2000/2500 Installation Instructions, Doc No. L3-87-IM, or later FAA approved revisions NGT-1000/2000/2500 Instructions for Continued Airworthiness, Doc No. L3-87- ICA, or later FAA approved revisions NGT-1000/2000/2500 Pilot's Guide and AFM Supplements, Doc No. L3- 87-RFMS1/2, or later FAA approved revisions 10 ENSTROM H1CE 33 3/10/15 F-28, F-28A, F-28C, 280, 280C, 280F, 280FX, 480, 480B, TH-28 CAR 6, FAR 21 NGT-1000/2000/2500 Installation Instructions, Doc No. L3-87-IM, or later FAA approved revisions NGT-1000/2000/2500 Instructions for Continued Airworthiness, Doc No. L3-87- ICA, or later FAA approved revisions NGT-1000/2000/2500 Pilot's Guide and AFM Supplements, Doc No. L3- 87-RFMS1/2, or later FAA approved revisions 11 GIFTON MCCREARY H7SW 10 6/30/00 OH-13H, OH-13E CAR 6, FAR 21 NGT-1000/2000/2500 Installation Instructions, Doc No. L3-87-IM, or later FAA approved revisions NGT-1000/2000/2500 Instructions for Continued Airworthiness, Doc No. L3-87- ICA, or later FAA approved revisions NGT-1000/2000/2500 Pilot's Guide and AFM Supplements, Doc No. L3- 87-RFMS1/2, or later FAA approved revisions 12 HILLER AVIATION 4H10 6 5/1/79 UH-12D CAR 6 NGT-1000/2000/2500 Installation Instructions, Doc No. L3-87-IM, or later FAA approved revisions NGT-1000/2000/2500 Instructions for Continued Airworthiness, Doc No. L3-87- ICA, or later FAA approved revisions NGT-1000/2000/2500 Pilot's Guide and AFM Supplements, Doc No. L3- 87-RFMS1/2, or later FAA approved revisions United States Of America Department of Transportation - Federal Aviation Administration ADS-B Technologies, LLC Approved Model List (AML) 900 Merrill Field Drive Number SR02470AK Anchorage, Alaska 99501 Date of Issuance: February 16, 2016 Approved Model List for the L-3 Communications Avionics Systems NGT-1000, NGT-2000, and NGT-2500 MULTILINK SURVEILLANCE SYSTEM on Part 27 (and predecessor regulations) Rotorcraft. No TC HOLDER TCDS TCDS REV TCDS **REV DATE MODELS** **CERTIFICATION BASIS** **INSTALLATION INSTRUCTIONS** **SERIES / DATE** **INSTRUCTIONS FOR** **CONTINUED AIRWORTHINESS** **AFM SUPPLEMENT** **NUMBER / DATE** Page 3 of 4 **13 HILLER AVIATION 6H1 11 5/1/79 UH-12, UH-12A** CAR 6 NGT-1000/2000/2500 Installation Instructions, Doc No. L3-87-IM, or later FAA approved revisions NGT-1000/2000/2500 Instructions for Continued Airworthiness, Doc No. L3-87- ICA, or later FAA approved revisions NGT-1000/2000/2500 Pilot's Guide and AFM Supplements, Doc No. L3- 87-RFMS1/2, or later FAA approved revisions 14 HILLER AVIATION 6H2 18 3/25/05 UH-12B CAR 6 NGT-1000/2000/2500 Installation Instructions, Doc No. L3-87-IM, or later FAA approved revisions NGT-1000/2000/2500 Instructions for Continued Airworthiness, Doc No. L3-87- ICA, or later FAA approved revisions NGT-1000/2000/2500 Pilot's Guide and AFM Supplements, Doc No. L3- 87-RFMS1/2, or later FAA approved revisions 15 MD HELICOPTER H3WE 26 11/6/13 500N, 600N, 369H, 369HM, 369D, 369E, 369FF CAR 6 NGT-1000/2000/2500 Installation Instructions, Doc No. L3-87-IM, or later FAA approved revisions NGT-1000/2000/2500 Instructions for Continued Airworthiness, Doc No. L3-87- ICA, or later FAA approved revisions NGT-1000/2000/2500 Pilot's Guide and AFM Supplements, Doc No. L3- 87-RFMS1/2, or later FAA approved revisions 16 PEGASUS ROTORCRAFT H5EA 1 2/20/98 **AVIAN, 2/180** FAR 27 NGT-1000/2000/2500 Installation Instructions, Doc No. L3-87-IM, or later FAA approved revisions NGT-1000/2000/2500 Instructions for Continued Airworthiness, Doc No. L3-87- ICA, or later FAA approved revisions NGT-1000/2000/2500 Pilot's Guide and AFM Supplements, Doc No. L3- 87-RFMS1/2, or later FAA approved revisions 17 ROBINSON HELICOPTER R00015LA 2 3/10/15 R66 **CFR27, CFR36** NGT-1000/2000/2500 Installation Instructions, Doc No. L3-87-IM, or later FAA approved revisions NGT-1000/2000/2500 Instructions for Continued Airworthiness, Doc No. L3-87- ICA, or later FAA approved revisions NGT-1000/2000/2500 Pilot's Guide and AFM Supplements, Doc No. L3- 87-RFMS1/2, or later FAA approved revisions 18 ROBINSON HELICOPTER H11NM 7 4/21/15 R44, R44 II **FAR 27** NGT-1000/2000/2500 Installation Instructions, Doc No. L3-87-IM, or later FAA approved revisions NGT-1000/2000/2500 Instructions for Continued Airworthiness, Doc No. L3-87- ICA, or later FAA approved revisions NGT-1000/2000/2500 Pilot's Guide and AFM Supplements, Doc No. L3- 87-RFMS1/2, or later FAA approved revisions United States Of America Department of Transportation - Federal Aviation Administration ADS-B Technologies, LLC Approved Model List (AML) 900 Merrill Field Drive Number SR02470AK Anchorage, Alaska 99501 Date of Issuance: February 16, 2016 Approved Model List for the L-3 Communications Avionics Systems NGT-1000, NGT-2000, and NGT-2500 MULTILINK SURVEILLANCE SYSTEM on Part 27 (and predecessor regulations) Rotorcraft. No TC HOLDER TCDS TCDS REV TCDS **REV DATE MODELS** **CERTIFICATION BASIS** **INSTALLATION INSTRUCTIONS** **SERIES / DATE** **INSTRUCTIONS FOR** **CONTINUED AIRWORTHINESS** **AFM SUPPLEMENT** **NUMBER / DATE** Page 4 of 4 **19 ROBINSON HELICOPTER H10WE 15 8/15/13** R22 FAR 27 NGT-1000/2000/2500 Installation Instructions, Doc No. L3-87-IM, or later FAA approved revisions NGT-1000/2000/2500 Instructions for Continued Airworthiness, Doc No. L3-87- ICA, or later FAA approved revisions NGT-1000/2000/2500 Pilot's Guide and AFM Supplements, Doc No. L3- 87-RFMS1/2, or later FAA approved revisions 20 SCOTTS BELL 47 INC 2H1 14 6/3/10 **SCOTTS-BELL 47, 47J, 47K, 47J-2, 47J-2A** CAR 6 NGT-1000/2000/2500 Installation Instructions, Doc No. L3-87-IM, or later FAA approved revisions NGT-1000/2000/2500 Instructions for Continued Airworthiness, Doc No. L3-87- ICA, or later FAA approved revisions NGT-1000/2000/2500 Pilot's Guide and AFM Supplements, Doc No. L3- 87-RFMS1/2, or later FAA approved revisions 21 SCOTTS BELL 47 INC 2H3 20 7/17/47 47G-3B-2, 47G-2A-1, 47G-3, 47G-4, 47G- 4A, , 47G-3B-2, 47G- 5A, 47G-3B-2A CAR 6 NGT-1000/2000/2500 Installation Instructions, Doc No. L3-87-IM, or later FAA approved revisions NGT-1000/2000/2500 Instructions for Continued Airworthiness, Doc No. L3-87- ICA, or later FAA approved revisions NGT-1000/2000/2500 Pilot's Guide and AFM Supplements, Doc No. L3- 87-RFMS1/2, or later FAA approved revisions 22 SIKORSKY AIRCRAFT 4H12 31 4/15/13 269A, 269A-1, 269B, 269C, 269C-1, 269D **CAR 6, CAR 8, FAR 21** NGT-1000/2000/2500 Installation Instructions, Doc No. L3-87-IM, or later FAA approved revisions NGT-1000/2000/2500 Instructions for Continued Airworthiness, Doc No. L3-87- ICA, or later FAA approved revisions NGT-1000/2000/2500 Pilot's Guide and AFM Supplements, Doc No. L3- 87-RFMS1/2, or later FAA approved revisions 23 WILBER ISENBERG H2CE 4 1/15/85 OH-13E FAR 21 NGT-1000/2000/2500 Installation Instructions, Doc No. L3-87-IM, or later FAA approved revisions NGT-1000/2000/2500 Instructions for Continued Airworthiness, Doc No. L3-87- ICA, or later FAA approved revisions NGT-1000/2000/2500 Pilot's Guide and AFM Supplements, Doc No. L3- 87-RFMS1/2, or later FAA approved revisions No further entries ## Every issue (2) - March 4, 2016: Amended, Current. [certificate](https://openairdocs.org/files/sha256/5d/d9/5dd90f1d00062453ac74b5cf6c983ee1d3b8dcc111f781b1329e4f2ce918a009), [AML_SR02470AK.pdf](https://openairdocs.org/files/sha256/24/7f/247f91afe169fb7c5e8b14506aab4b4f3c4ca688a979266d4fb067849ab3ab46) - February 16, 2016: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/e3/aa/e3aac611cae00fb42a9b6905594ecc279196bb818037137c6204f97527342977), [SR02470AK_AML.pdf](https://openairdocs.org/files/sha256/9a/b1/9ab1614898d8966ef9d98639e668150c500840708cc0234a3116e6d2601823fa) --- 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.